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Free Alternatives to OpenCorporates

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Free Alternatives to OpenCorporates

Zero-cost replacements ranked by category overlap, pricing, and platform access. Use this list to test OpenCorporates before paying for another subscription.

Switching from OpenCorporates doesn't have to cost a thing. We've curated 20 free-tier alternatives that cover similar workflows, from Data APIs to Regulatory Filings Monitoring and beyond. Each pick below is ranked by how closely it matches OpenCorporates's category footprint—so you can trial replacements without opening your wallet.

View all alternatives
Alternatives20Curated picks
Free Options20With free tiers
Avg. Overlap55%Category match
Mobile Ready8Native apps

Quick takeaways

Visualping is the closest drop-in replacement with overlapping coverage in Data APIs, Regulatory Filings Monitoring, and Other while adding Alerts and APIs & SDKs coverage and Monitor any website or selected area for visual, text or HTML/code changes, with AI that flags important changes and sends highlighted before/after screenshots in each alert. and Flexible scheduling and thresholds: free plan minimum check interval is 60 minutes; paid plans can run more frequent checks, and platform materials cite sub-hourly intervals as frequent as five minutes. features (category overlap ~100%).

Every pick keeps a free tier; start with Visualping, Listen Notes, and Wayback Machine (Internet Archive) to road-test OpenCorporates workflows without paying up front.

Need mobile access? Listen Notes, Wayback Machine (Internet Archive), and Trading Economics bring phone-ready workflows that OpenCorporates lacks.

Round out your stack with new coverage areas like Alerts, APIs & SDKs, Webhooks, and Blogs.

#1 Alternative

Free Tier
Similarity score 740Category overlap: 100%

Shared coverage

Data APIsRegulatory Filings MonitoringOther

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web

Pricing: Free and Subscription

Why investors switch

  • Expands into Alerts, APIs & SDKs, and Webhooks coverage beyond what OpenCorporates offers.
  • Standout features include Monitor any website or selected area for visual, text or HTML/code changes, with AI that flags important changes and sends highlighted before/after screenshots in each alert., Flexible scheduling and thresholds: free plan minimum check interval is 60 minutes; paid plans can run more frequent checks, and platform materials cite sub-hourly intervals as frequent as five minutes., and Advanced monitoring controls, including screen type (area, full page, mobile or page fold), configurable wait times, proxies, scroll/click/type actions and xPath/selector targeting for tricky elements..

Adds coverage: Alerts, APIs & SDKs, Webhooks, and Blogs

Standout features: Monitor any website or selected area for visual, text or HTML/code changes, with AI that flags important changes and sends highlighted before/after screenshots in each alert., Flexible scheduling and thresholds: free plan minimum check interval is 60 minutes; paid plans can run more frequent checks, and platform materials cite sub-hourly intervals as frequent as five minutes., Advanced monitoring controls, including screen type (area, full page, mobile or page fold), configurable wait times, proxies, scroll/click/type actions and xPath/selector targeting for tricky elements., and Multi‑channel notifications delivered to email and SMS by default, with optional Slack, Microsoft Teams, Google Chat, Discord, Google Sheets and more via Visualping for Business integrations.

#2 Alternative

Free Tier
Similarity score 621Category overlap: 67%

Shared coverage

Data APIsOther

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • Listen Notes adds mobile access for on-the-go monitoring.
  • Expands into APIs & SDKs, Alerts, and Education coverage beyond what OpenCorporates offers.
  • Standout features include Podcast API v2: search, directory, insights, transcripts on higher tiers, official client libraries, OpenAPI spec, and mock server for keyless testing., Pricing tiers with concrete quotas: FREE (300 req/mo), PRO (base fee with 5k req/mo included + tiered overages), ENTERPRISE (annual contract, larger quotas, relaxed caching/no-logo)., and Plan-based search result caps & rate limits: FREE up to 30 results/query (2 req/s, 20 req/min); PRO up to 300 results/query (medium rate limit); ENTERPRISE up to 10,000 results/query (high rate limit)..
  • Pair it with OpenCorporates if you still need Regulatory Filings Monitoring.

Adds coverage: APIs & SDKs, Alerts, and Education

Standout features: Podcast API v2: search, directory, insights, transcripts on higher tiers, official client libraries, OpenAPI spec, and mock server for keyless testing., Pricing tiers with concrete quotas: FREE (300 req/mo), PRO (base fee with 5k req/mo included + tiered overages), ENTERPRISE (annual contract, larger quotas, relaxed caching/no-logo)., Plan-based search result caps & rate limits: FREE up to 30 results/query (2 req/s, 20 req/min); PRO up to 300 results/query (medium rate limit); ENTERPRISE up to 10,000 results/query (high rate limit)., and Advanced fields & endpoints on higher tiers: transcripts, batch fetch, RSS/large image, email, latest_episode_id, Listen Score & Global Rank.

#3 Alternative

Free Tier
Similarity score 597Category overlap: 67%

Shared coverage

Data APIsOther

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free

Why investors switch

  • Wayback Machine (Internet Archive) adds mobile access for on-the-go monitoring.
  • Expands into APIs & SDKs and Citations & Source Pinning coverage beyond what OpenCorporates offers.
  • Standout features include On‑demand archiving via Save Page Now (SPN2) with POST/GET; options include capture_outlinks, capture_all, capture_screenshot, custom UA/cookies, and conditional capture (if_not_archived_within)., Snapshot discovery: Availability API (/wayback/v1/available) returns the closest archived capture to a URL/time; CDX Server API lists/filters captures; Memento TimeGate/TimeMap endpoints enable time‑based content negotiation., and Operational endpoints: user status (remaining/active SPN sessions) and system status (overload/OK) for SPN2..
  • Pair it with OpenCorporates if you still need Regulatory Filings Monitoring.

Adds coverage: APIs & SDKs and Citations & Source Pinning

Standout features: On‑demand archiving via Save Page Now (SPN2) with POST/GET; options include capture_outlinks, capture_all, capture_screenshot, custom UA/cookies, and conditional capture (if_not_archived_within)., Snapshot discovery: Availability API (/wayback/v1/available) returns the closest archived capture to a URL/time; CDX Server API lists/filters captures; Memento TimeGate/TimeMap endpoints enable time‑based content negotiation., Operational endpoints: user status (remaining/active SPN sessions) and system status (overload/OK) for SPN2., and Mobile & extensions: official iOS/Android apps and browser extensions (Chrome, Firefox, Safari, Edge) for quick saving and lookup.

#4 Alternative

Free Tier
Similarity score 591Category overlap: 67%

Shared coverage

Data APIsOther

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free

Why investors switch

  • Expands into APIs & SDKs, Data Visualizations, and Videos coverage beyond what OpenCorporates offers.
  • Standout features include Advanced Search & profiles across awards, recipients, agencies, federal accounts; filters include date, place of performance, NAICS/PSC, Assistance Listing (formerly CFDA), DEFC for COVID/infrastructure., Spending Explorer and Agency/Federal Account profiles for top‑down views of obligations/outlays and drill‑downs by budget hierarchy., and Public REST API V2 that powers the website (GET & POST endpoints; JSON responses); V1 endpoints are deprecated..
  • Pair it with OpenCorporates if you still need Regulatory Filings Monitoring.

Adds coverage: APIs & SDKs, Data Visualizations, and Videos

Standout features: Advanced Search & profiles across awards, recipients, agencies, federal accounts; filters include date, place of performance, NAICS/PSC, Assistance Listing (formerly CFDA), DEFC for COVID/infrastructure., Spending Explorer and Agency/Federal Account profiles for top‑down views of obligations/outlays and drill‑downs by budget hierarchy., Public REST API V2 that powers the website (GET & POST endpoints; JSON responses); V1 endpoints are deprecated., and Bulk data: Award Data Archive (pre-generated, by agency/fiscal year), Custom Award Data, Custom Account Data, Advanced Search result downloads, award profile downloads, and full Database Download.

#5 Alternative

Free Tier
Similarity score 585Category overlap: 67%

Shared coverage

Data APIsRegulatory Filings Monitoring

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free

Why investors switch

  • Expands into APIs & SDKs and Data Visualizations coverage beyond what OpenCorporates offers.
  • Standout features include Interactive explorer to filter, chart trends over time, map by geography, and read consented narratives., Programmatic access via the Consumer Complaint Database Search API; results available as JSON, CSV, XLS, or XLSX., and Daily refresh cadence; recent trends can exclude still-pending complaints because companies generally have 15 days to respond before publication eligibility..
  • Pair it with OpenCorporates if you still need Other.

Adds coverage: APIs & SDKs and Data Visualizations

Standout features: Interactive explorer to filter, chart trends over time, map by geography, and read consented narratives., Programmatic access via the Consumer Complaint Database Search API; results available as JSON, CSV, XLS, or XLSX., Daily refresh cadence; recent trends can exclude still-pending complaints because companies generally have 15 days to respond before publication eligibility., and The complaint process can allow up to 60 days for final company response handling in more complex cases, so downstream analysis should treat the newest periods as incomplete.

#6 Alternative

Free Tier
Similarity score 585Category overlap: 67%

Shared coverage

Data APIsRegulatory Filings Monitoring

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free

Why investors switch

  • Expands into APIs & SDKs and Data Visualizations coverage beyond what OpenCorporates offers.
  • Standout features include Three core datasets each year: General Payments, Research Payments, and Ownership/Investment Interests., Web search/explorer with filtering and charts; program year downloads available from the portal., and Open Data API (ODA) for programmatic access with filtering, querying, and aggregation (SoQL‑style)..
  • Pair it with OpenCorporates if you still need Other.

Adds coverage: APIs & SDKs and Data Visualizations

Standout features: Three core datasets each year: General Payments, Research Payments, and Ownership/Investment Interests., Web search/explorer with filtering and charts; program year downloads available from the portal., Open Data API (ODA) for programmatic access with filtering, querying, and aggregation (SoQL‑style)., and Publication cadence: initial annual publication on/around June 30 for the prior year, plus refresh publication after the calendar-year-end review/re-attestation cycle.

Similarity score 579Category overlap: 67%

Shared coverage

Data APIsRegulatory Filings Monitoring

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free

Why investors switch

  • Expands into Alerts coverage beyond what OpenCorporates offers.
  • Standout features include Free search and viewing of company information including registered details, officers, filing history, document images, mortgage charges, and insolvency data., Follow companies and receive email alerts when new filings are accepted, with direct links to the filing history., and Order certified copies and certificates for a fee; Companies House published an updated fee schedule effective February 1, 2026..
  • Pair it with OpenCorporates if you still need Other.

Adds coverage: Alerts

Standout features: Free search and viewing of company information including registered details, officers, filing history, document images, mortgage charges, and insolvency data., Follow companies and receive email alerts when new filings are accepted, with direct links to the filing history., Order certified copies and certificates for a fee; Companies House published an updated fee schedule effective February 1, 2026., and Bulk data available as monthly CSV snapshots of the entire UK companies register.

#8 Alternative

Analyst PickHands-on TestedFree Tier
Similarity score 577Category overlap: 67%

Shared coverage

Data APIsRegulatory Filings Monitoring

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • Expands into Insider Data, 13F, and 13D/13G coverage beyond what OpenCorporates offers.
  • Standout features include Comprehensive API endpoints: query, full-text search, real-time streaming via WebSocket, download/PDF generator, XBRL-to-JSON conversion, and section extractors for 10-K/10-Q/8-K filings., Specialized form coverage including ADV, insider filings (Forms 3/4/5), 13F, 13D/G, Form 144, IPO registrations (S-1, 424B4), crowdfunding (Form C, Form D), Reg A filings, and fund reports (N-PORT, N-PX, N-CEN)., and Datasets include executive compensation, directors and board members, audit fees, subsidiaries, and public float/outstanding shares..
  • Pair it with OpenCorporates if you still need Other.

Adds coverage: Insider Data, 13F, 13D/13G, and Financials

Standout features: Comprehensive API endpoints: query, full-text search, real-time streaming via WebSocket, download/PDF generator, XBRL-to-JSON conversion, and section extractors for 10-K/10-Q/8-K filings., Specialized form coverage including ADV, insider filings (Forms 3/4/5), 13F, 13D/G, Form 144, IPO registrations (S-1, 424B4), crowdfunding (Form C, Form D), Reg A filings, and fund reports (N-PORT, N-PX, N-CEN)., Datasets include executive compensation, directors and board members, audit fees, subsidiaries, and public float/outstanding shares., and Historical coverage back to 1993 with support for all 400+ EDGAR form types; new filings made available within ~300 ms of posting.

#9 Alternative

Free Tier
Similarity score 575Category overlap: 67%

Shared coverage

Data APIsRegulatory Filings Monitoring

Assets: Other

Experience: Intermediate and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • Expands into APIs & SDKs, Sheets / Excel Add-ins, and Quant coverage beyond what OpenCorporates offers.
  • Standout features include REST API for real-time and historical stock market data, company financial statements, insider and institutional trading data, earnings releases, and other financial datasets., Coverage across US and international markets, including equities, indices, funds, derivatives, OTC securities, crypto, forex, and commodities., and Pricing dataset table advertises 252,000+ tickers across 20+ exchanges, with symbols for stocks, ETFs, commodities, OTC securities, indices, options, futures, crypto, forex, and mutual funds..
  • Pair it with OpenCorporates if you still need Other.

Adds coverage: APIs & SDKs, Sheets / Excel Add-ins, Quant, and News

Standout features: REST API for real-time and historical stock market data, company financial statements, insider and institutional trading data, earnings releases, and other financial datasets., Coverage across US and international markets, including equities, indices, funds, derivatives, OTC securities, crypto, forex, and commodities., Pricing dataset table advertises 252,000+ tickers across 20+ exchanges, with symbols for stocks, ETFs, commodities, OTC securities, indices, options, futures, crypto, forex, and mutual funds., and Historical data coverage varies by endpoint: homepage messaging says over 20 years overall; the pricing table lists end-of-day prices since 2015, company/fundamentals since 2010, market news since 2006, ESG since 2020, and corporate actions since 1964.

#10 Alternative

Analyst PickHands-on TestedFree Tier
Similarity score 559Category overlap: 67%

Shared coverage

Data APIsRegulatory Filings Monitoring

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free

Why investors switch

  • Expands into IPO, Secondary Offerings, and Insider Data coverage beyond what OpenCorporates offers.
  • Standout features include Full‑Text Search (since 2001) with fielded filters: word/phrase, company/ticker/CIK/person, filing category/types, filed date ranges, ‘principal executive offices in’ and ‘incorporated in’., ‘Latest Filings’ list shows filings as they are submitted (with RSS for any filter; ownership Forms 3/4/5 can be included/excluded/only)., and Company Search with ‘more search options’, plus dedicated searches for Mutual Funds (prospectuses/proxy voting) and Variable Insurance Products..
  • Pair it with OpenCorporates if you still need Other.

Adds coverage: IPO, Secondary Offerings, Insider Data, and 13F

Standout features: Full‑Text Search (since 2001) with fielded filters: word/phrase, company/ticker/CIK/person, filing category/types, filed date ranges, ‘principal executive offices in’ and ‘incorporated in’., ‘Latest Filings’ list shows filings as they are submitted (with RSS for any filter; ownership Forms 3/4/5 can be included/excluded/only)., Company Search with ‘more search options’, plus dedicated searches for Mutual Funds (prospectuses/proxy voting) and Variable Insurance Products., and CIK Lookup & helper datasets (company_tickers*.json) to map tickers↔CIK (company/fund/series/class).

#11 Alternative

Free Tier
Similarity score 555Category overlap: 67%

Shared coverage

Data APIsRegulatory Filings Monitoring

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • Expands into Improved Filings, IPO, and Insider Data coverage beyond what OpenCorporates offers.
  • Standout features include Real-time filings ingestion (<5 min typical) across 44 European markets; public API page now lists 33,501 companies and 15,414,728 historical filings., Programmatic access to filings, company metadata, languages, countries, filing types, sources; Markdown extraction endpoint for filing text., and API docs include a 2026 changelog with MCP connector write operations and beta AI RAG Agent API endpoints for programmatic interaction with the AI assistant..
  • Pair it with OpenCorporates if you still need Other.

Adds coverage: Improved Filings, IPO, Insider Data, and Alerts

Standout features: Real-time filings ingestion (<5 min typical) across 44 European markets; public API page now lists 33,501 companies and 15,414,728 historical filings., Programmatic access to filings, company metadata, languages, countries, filing types, sources; Markdown extraction endpoint for filing text., API docs include a 2026 changelog with MCP connector write operations and beta AI RAG Agent API endpoints for programmatic interaction with the AI assistant., and Watchlist & email alerts the moment a tracked company files; ‘Live Filings Feed’ UI (30‑minute update cycle).

#12 Alternative

Free Tier
Similarity score 515Category overlap: 67%

Shared coverage

Data APIsRegulatory Filings Monitoring

Experience: Intermediate and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • Expands into Stock Ideas, Screeners, and Data Visualizations coverage beyond what OpenCorporates offers.
  • Standout features include AI-powered market-intelligence hub that combines market data, social sentiment, breaking-news clustering, and AI-powered analysis., Classical stock-data layer includes real-time and historical stock prices, OHLCV charts, company fundamentals/profiles, analyst ratings and price targets, earnings calendar, short interest, float, short volume, and financial metrics., and SentiSense Score blends news, Reddit, and X/Twitter signals into a per-ticker sentiment score for stock discovery and crowd-conviction monitoring..
  • Pair it with OpenCorporates if you still need Other.

Adds coverage: Stock Ideas, Screeners, Data Visualizations, and Quant

Standout features: AI-powered market-intelligence hub that combines market data, social sentiment, breaking-news clustering, and AI-powered analysis., Classical stock-data layer includes real-time and historical stock prices, OHLCV charts, company fundamentals/profiles, analyst ratings and price targets, earnings calendar, short interest, float, short volume, and financial metrics., SentiSense Score blends news, Reddit, and X/Twitter signals into a per-ticker sentiment score for stock discovery and crowd-conviction monitoring., and Documents & News API searches and retrieves sentiment metrics for news articles, social posts, and AI-curated stories across sources such as news publishers, Reddit, X/Twitter, and Substack.

#13 Alternative

Analyst PickHands-on TestedFree Tier
Similarity score 483Category overlap: 33%

Shared coverage

Data APIs

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • Expands into APIs & SDKs, Calendar, and News coverage beyond what OpenCorporates offers.
  • Standout features include Personal-use pricing: Free ($0), EOD All World ($19.99/mo), EOD+Intraday All World Extended ($29.99/mo), Fundamentals Data Feed ($59.99/mo), All‑In‑One ($99.99/mo)., Commercial-use pricing: Internal Use ($399/mo) and Enterprise ($2499/mo) are listed, plus a Custom plan (quote)., and Rate limits & quotas: minute request limit is 1000 requests/min; paid plans default to 100,000 daily “API calls” (with different endpoints consuming different call amounts)..
  • Pair it with OpenCorporates if you still need Regulatory Filings Monitoring and Other.

Adds coverage: APIs & SDKs, Calendar, News, and News Sentiment

Standout features: Personal-use pricing: Free ($0), EOD All World ($19.99/mo), EOD+Intraday All World Extended ($29.99/mo), Fundamentals Data Feed ($59.99/mo), All‑In‑One ($99.99/mo)., Commercial-use pricing: Internal Use ($399/mo) and Enterprise ($2499/mo) are listed, plus a Custom plan (quote)., Rate limits & quotas: minute request limit is 1000 requests/min; paid plans default to 100,000 daily “API calls” (with different endpoints consuming different call amounts)., and Tick Data API (US equities): available in All‑In‑One, or “by request” as an additional package; dataset begins 2008‑01‑01; consumes 10 API calls/request.

#14 Alternative

Hands-on TestedFree Tier
Similarity score 481Category overlap: 33%

Shared coverage

Data APIs

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • Trading Economics adds mobile access for on-the-go monitoring.
  • Expands into GDP, Inflation Rates, and Unemployment Rates coverage beyond what OpenCorporates offers.
  • Standout features include Docs advertise indicators (>15,000 data series from official sources) and an economic calendar (~1600 events/month across 150+ countries)., REST API provides direct access to economic indicators plus markets data (FX, stock indexes, government bond yields, commodities) and company financials; includes subscriptions to market quotes and streaming updates (calendar + earnings)., and API supports JSON/CSV/XML output via the &f= parameter and API-key auth via query param (c=) or Authorization header..
  • Pair it with OpenCorporates if you still need Regulatory Filings Monitoring and Other.

Adds coverage: GDP, Inflation Rates, Unemployment Rates, and Interest Rates

Standout features: Docs advertise indicators (>15,000 data series from official sources) and an economic calendar (~1600 events/month across 150+ countries)., REST API provides direct access to economic indicators plus markets data (FX, stock indexes, government bond yields, commodities) and company financials; includes subscriptions to market quotes and streaming updates (calendar + earnings)., API supports JSON/CSV/XML output via the &f= parameter and API-key auth via query param (c=) or Authorization header., and API limits: general limit of 1 request/second; historical endpoints capped at 10,000 rows and economic calendar endpoints capped at 1,000 rows per call.

#15 Alternative

Free Tier
Similarity score 473Category overlap: 33%

Shared coverage

Data APIs

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • BizToc adds mobile access for on-the-go monitoring.
  • Expands into News, Market Sentiment, and Reddit coverage beyond what OpenCorporates offers.
  • Standout features include Single-page news hub; homepage includes a Markets snapshot (major indices, 10Y yield, oil, gold, Bitcoin) and a Fear & Greed score., Real-time “Wire” feed: chronological updates from the “top 100 U.S. business news sites.”, and Custom news grid configurator: drag to rearrange source boxes, hide boxes, and “Reset To Default Grid” (desktop configuration recommended)..
  • Pair it with OpenCorporates if you still need Regulatory Filings Monitoring and Other.

Adds coverage: News, Market Sentiment, Reddit, and APIs & SDKs

Standout features: Single-page news hub; homepage includes a Markets snapshot (major indices, 10Y yield, oil, gold, Bitcoin) and a Fear & Greed score., Real-time “Wire” feed: chronological updates from the “top 100 U.S. business news sites.”, Custom news grid configurator: drag to rearrange source boxes, hide boxes, and “Reset To Default Grid” (desktop configuration recommended)., and “Imagery” (NewsWall) view: “The Latest News in Pictures.”

#16 Alternative

Free Tier
Similarity score 473Category overlap: 33%

Shared coverage

Data APIs

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • FlightAware adds mobile access for on-the-go monitoring.
  • Expands into APIs & SDKs, Data Visualizations, and Alerts coverage beyond what OpenCorporates offers.
  • Standout features include Live flight tracking and flight-status pages with dedicated views for cancellations and delays, plus the signature MiseryMap® for U.S. air traffic disruptions., Premium subscriptions unlock unlimited flight alerts and access to three, five, or eight months of historical flight data., and AeroAPI (v4) provides RESTful access to current and historical flight data with JSON responses, API key authentication, and OpenAPI 3.1 documentation..
  • Pair it with OpenCorporates if you still need Regulatory Filings Monitoring and Other.

Adds coverage: APIs & SDKs, Data Visualizations, Alerts, and Satellite / Geospatial

Standout features: Live flight tracking and flight-status pages with dedicated views for cancellations and delays, plus the signature MiseryMap® for U.S. air traffic disruptions., Premium subscriptions unlock unlimited flight alerts and access to three, five, or eight months of historical flight data., AeroAPI (v4) provides RESTful access to current and historical flight data with JSON responses, API key authentication, and OpenAPI 3.1 documentation., and AeroAPI Personal has per-query usage fees and no monthly minimum; Standard has a $100/month minimum and 5 result sets/second; Premium has a $1,000/month minimum, 100 result sets/second, Foresight/Aireon options, phone support, and a 99.5% uptime guarantee.

#17 Alternative

Free Tier
Similarity score 473Category overlap: 33%

Shared coverage

Data APIs

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • GuruFocus adds mobile access for on-the-go monitoring.
  • Expands into Stock Ideas, Screeners, and ETF Screeners coverage beyond what OpenCorporates offers.
  • Standout features include Global value-investing research platform with historical financial and valuation data, screeners, charts, comparisons, institutional-investor trading histories, executive trading histories, market valuation data, economic indicators, and industry indicators., Large global coverage footprint: GuruFocus says it serves more than 1 million users worldwide, covers 100,000 stocks in 100 markets, tracks 8,000+ institutional investors’ trading histories, and tracks 15,000+ mutual fund holdings; API documentation separately describes 60,000+ companies across 9 regions., and All-in-One Screener with 500+ filters across fundamentals, valuation, profitability, growth, dividends, guru holdings, insider trades, predefined value screens, custom filters, saved screens, downloadable results, and portfolio workflow integration..
  • Pair it with OpenCorporates if you still need Regulatory Filings Monitoring and Other.

Adds coverage: Stock Ideas, Screeners, ETF Screeners, and Top Analysts

Standout features: Global value-investing research platform with historical financial and valuation data, screeners, charts, comparisons, institutional-investor trading histories, executive trading histories, market valuation data, economic indicators, and industry indicators., Large global coverage footprint: GuruFocus says it serves more than 1 million users worldwide, covers 100,000 stocks in 100 markets, tracks 8,000+ institutional investors’ trading histories, and tracks 15,000+ mutual fund holdings; API documentation separately describes 60,000+ companies across 9 regions., All-in-One Screener with 500+ filters across fundamentals, valuation, profitability, growth, dividends, guru holdings, insider trades, predefined value screens, custom filters, saved screens, downloadable results, and portfolio workflow integration., and Screener backtesting for more than 80 countries, with U.S. backtests starting January 1, 2006 and non-U.S. country backtests generally starting January 1, 2016; parameters include stock count, ranking metric, sort order, start/end date, and rebalance frequency.

#18 Alternative

Free Tier
Similarity score 473Category overlap: 33%

Shared coverage

Data APIs

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • Semrush adds mobile access for on-the-go monitoring.
  • Expands into App & Website Traffic, APIs & SDKs, and Sheets / Excel Add-ins coverage beyond what OpenCorporates offers.
  • Standout features include Traffic Analytics tools to examine any website’s visitors, sources, engagement metrics, and competitive benchmarks., Rich API suite: Standard API for SEO Toolkit Business users, Trends API, Listing Management API for Semrush Local users, and Map Rank Tracker API. Current versions support API key and OAuth 2.0 flows depending on endpoint family., and API consumption billed in ‘units’ per request or per line of data. Historical queries cost more; some APIs like Listing Management and Map Rank Tracker are excluded from unit billing..
  • Pair it with OpenCorporates if you still need Regulatory Filings Monitoring and Other.

Adds coverage: App & Website Traffic, APIs & SDKs, Sheets / Excel Add-ins, and Blogs

Standout features: Traffic Analytics tools to examine any website’s visitors, sources, engagement metrics, and competitive benchmarks., Rich API suite: Standard API for SEO Toolkit Business users, Trends API, Listing Management API for Semrush Local users, and Map Rank Tracker API. Current versions support API key and OAuth 2.0 flows depending on endpoint family., API consumption billed in ‘units’ per request or per line of data. Historical queries cost more; some APIs like Listing Management and Map Rank Tracker are excluded from unit billing., and Flexible exports in CSV, Excel, and PDF across tools. Position Tracking and Site Audit modules generate PDF reports; Position Tracking also supports direct Google Sheets export.

#19 Alternative

Free Tier
Similarity score 473Category overlap: 33%

Shared coverage

Data APIs

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • Sharesight adds mobile access for on-the-go monitoring.
  • Expands into Portfolio, Risk Metrics, and Performance Attribution coverage beyond what OpenCorporates offers.
  • Standout features include Global multi‑asset portfolio and dividend tracker that automatically tracks price, performance and dividends for 700k+ stocks, ETFs, funds and crypto across 60+ markets, with support for cash accounts and property in one view., Public pricing page says 500,000+ investors track investments with Sharesight., and Connects to 200+ brokers and finance apps (including Trading 212, Hargreaves Lansdown and Interactive Brokers) so trades can be imported directly, or via CSV/manual workflows when brokers are unsupported..
  • Pair it with OpenCorporates if you still need Regulatory Filings Monitoring and Other.

Adds coverage: Portfolio, Risk Metrics, Performance Attribution, and Downloadable Tax Reports

Standout features: Global multi‑asset portfolio and dividend tracker that automatically tracks price, performance and dividends for 700k+ stocks, ETFs, funds and crypto across 60+ markets, with support for cash accounts and property in one view., Public pricing page says 500,000+ investors track investments with Sharesight., Connects to 200+ brokers and finance apps (including Trading 212, Hargreaves Lansdown and Interactive Brokers) so trades can be imported directly, or via CSV/manual workflows when brokers are unsupported., and Rich reporting suite for performance and risk, including performance, multi‑period, diversity, exposure, contribution analysis and drawdown risk reports, plus benchmarking against indices or individual securities.

#20 Alternative

Hands-on TestedFree Tier
Similarity score 469Category overlap: 33%

Shared coverage

Data APIs

Assets: Other

Experience: Beginner, Intermediate, and Advanced

Platforms: Web and API

Pricing: Free and Subscription

Why investors switch

  • Expands into Screeners, News, and Calendar coverage beyond what OpenCorporates offers.
  • Standout features include Multi‑asset data coverage via a single API: equities, ETFs, mutual funds, indexes, forex, crypto, commodities, macroeconomic indicators, ESG and ownership datasets, organized into Market Data, Fundamental & Company Data, News & Calendar Data, Advanced Data, Ownership and Other Markets., Real‑time quotes plus intraday (1‑minute, 5‑minute, 30‑minute, 1‑hour) and end‑of‑day historical bars for stocks and other assets; Premium and Ultimate tiers add intraday chart endpoints, technical indicators and up to 30+ years of history, with Ultimate including 1‑minute intraday charting and full historical access., and Fundamental statement APIs with audited, standardized and as‑reported income statements, balance sheets and cash‑flow statements (annual, quarterly and TTM), plus key metrics, ratios, financial scores, enterprise values and product/geographic segment revenue breakdowns..
  • Pair it with OpenCorporates if you still need Regulatory Filings Monitoring and Other.

Adds coverage: Screeners, News, Calendar, and Dividends

Standout features: Multi‑asset data coverage via a single API: equities, ETFs, mutual funds, indexes, forex, crypto, commodities, macroeconomic indicators, ESG and ownership datasets, organized into Market Data, Fundamental & Company Data, News & Calendar Data, Advanced Data, Ownership and Other Markets., Real‑time quotes plus intraday (1‑minute, 5‑minute, 30‑minute, 1‑hour) and end‑of‑day historical bars for stocks and other assets; Premium and Ultimate tiers add intraday chart endpoints, technical indicators and up to 30+ years of history, with Ultimate including 1‑minute intraday charting and full historical access., Fundamental statement APIs with audited, standardized and as‑reported income statements, balance sheets and cash‑flow statements (annual, quarterly and TTM), plus key metrics, ratios, financial scores, enterprise values and product/geographic segment revenue breakdowns., and Built‑in valuation and advanced metrics including DCF models, owner earnings and other formula‑based indicators documented in the Financial Formulas section, with a Custom DCF Calculator and Advanced Market Metrics (e.g., sector performance, technical indicators) available on higher‑tier plans.

Coverage Snapshot

Where alternatives already align

Most shared categories across the top matches.

Data APIs×20Regulatory Filings Monitoring×9Other×4

New angles introduced

Categories the alternatives add beyond OpenCorporates.

APIs & SDKs+18Alerts+10Insider Data+8IPO+8News+813F+6Calendar+6Data Visualizations+6

Free Access & Pricing

Free options

All 20

20 vetted picks keep a permanent free tier so you can validate workflows before upgrading.

Mobile ready

8/20

8 alternatives bring native mobile access.

API availability

19/20

19 of the shortlisted tools expose API endpoints for automation-heavy workflows.

Quality checks

3 starred / 5 tested

3 tools are flagged as analyst picks; 5 have been hands-on tested.

Avg. coverage overlap

55%

Average percentage of categories shared with the base tool.

Free Alternatives FAQ

What are the best free alternatives to OpenCorporates?

Start with Visualping, Listen Notes, and Wayback Machine (Internet Archive) to replicate OpenCorporates workflows without paying for a subscription.

Do these picks stay permanently free?

Yes. Each platform listed keeps a standing free tier with no credit card required -- though export limits or seat caps may apply if you scale usage.

Which OpenCorporates workflows stay covered on the free plan?

Expect solid overlap across Data APIs, Regulatory Filings Monitoring, and Other, so core OpenCorporates workflows can move over without a paid upgrade.

What extra coverage do the free alternatives add?

Alerts, APIs & SDKs, Webhooks, Blogs, Education, Citations & Source Pinning, Data Visualizations, Videos, Insider Data, 13F, 13D/13G, Financials, Management Compensation, IPO, Sheets / Excel Add-ins, Quant, News, Calendar, Splits, Dividends, Short Interest, GDP, Inflation Rates, Unemployment Rates, Retail Sales, Scores, ESG Ratings, Institutional Data, US Government Trades, ETF Overview, ETF Performance, ETF Holdings, Fund Overview, Fund Performance, Fund Holdings, Options & Derivatives, Options, Secondary Offerings, Improved Filings, Screeners, AI Filings Summary, AI Chat, Watchlist, Stock Ideas, News Sentiment, Market Sentiment, Reddit, Analyst Recommendations, Analyst Price Targets, AI, AI Report, Delisted, Interest Rates, Credit Ratings & Outlooks, Satellite / Geospatial, ETF Screeners, Top Analysts, Stock Comparison, ETF Comparison, Backtesting, Correlation, Portfolio, Investor Holdings, Special Situations, Acquisitions, Spin-offs, Commitment of Traders (COT), Yield Curves, Flags, Valuation Models, Transcripts, Analyst Forecasts, Broker Connectors, Forums, Newsletters, Custom Dashboards, Stock Handbook, Dividend, App & Website Traffic, Risk Metrics, Performance Attribution, Downloadable Tax Reports, Capital Gains Estimator, Dividend Tax / ADR Withholding, Compounding Calculator, Wealth Management, Client & Investor Reporting, Client Portal & Mobile App, and ETF Fundamentals show up most often as bonus coverage beyond the base platform, giving you room to experiment before upgrading.

Where might I still rely on OpenCorporates?

Regulatory Filings Monitoring and Other remain strengths for OpenCorporates. Keep it handy for those tasks or plan for a paid upgrade if they matter.

Information

About Me

Hey! Thanks for stopping by. I'm an independent investor with a soft spot for coding and the stock market - especially value investing (as you can probably tell from the tools I've collected here, haha). Hopefully you'll find something useful or interesting along the way.

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Starred Tools

These are my top picks. Tools I've tested thoroughly and found to be excellent. They do their job really well, and I use them a lot. If you're not already familiar with them, I highly recommend checking them out.

Tested Tools

These are tools I've tried and found to be solid, but not standout. Think of them as passing an initial quality screen: worth exploring, though not all will be exceptional.

Curation & Accuracy

This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).

Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.