Best tools for Web

ETF Insider

ETF Insider analyzes stocks, ETFs, and mutual-fund portfolios for holdings overlap, concentration, correlations, exposure, and efficient-frontier tradeoffs. Full holdings and Excel export require Pro; API and white-label access require Enterprise.

FINVIZ

FINVIZ is a fast U.S. stock screener with heat maps, quote pages, news, insider activity, and watchlists. It turns a market overview into a stock list using fundamental and technical filters. The free version is delayed; Elite adds real-time data, intraday charts, alerts, exports, API access, and deeper ETF and portfolio tools.

Fiscal.ai

Fiscal.ai combines a company-research terminal with REST, webhook, and MCP access. It covers financials, segments, KPIs, estimates, transcripts, filings, screens, valuation, ownership, fund letters, and AI-assisted research.

Google Finance

Google Finance provides quotes, charts, financial news, watchlists, portfolios, earnings context, and AI-assisted research for signed-in users. It supports market monitoring, not brokerage execution or professional data feeds.

GuruFocus

GuruFocus combines global fundamentals, valuation, GF Score, GF Value, stock, ETF, and bond screens, backtests, guru and institutional holdings, insider trades, portfolios, spreadsheet add-ins, and APIs. It is built for fundamental and value research, not brokerage execution.

Interactive Brokers (IBKR)

Interactive Brokers serves active investors, professionals, quantitative traders, and institutions across global markets. It supports advanced orders, SmartRouting, APIs, paper trading, and portfolio analysis. Products, commissions, data fees, protection, and API limits depend on market, account, entity, and country.

Investing.com

Investing.com combines quotes, charts, news, calendars, watchlists, alerts, portfolios, screens, and mobile monitoring. InvestingPro adds paid AI tools, stock ideas, valuation estimates, Health Scores, ProTips, and more fundamental data.

Koyfin

Koyfin is a web and mobile research terminal with dashboards, charts, screens, portfolios, news, alerts, transcripts, and market data across equities, funds, macro, FX, commodities, crypto, and yield curves. Free access shows the workflow; paid and Advisor tiers add history, reports, alerts, integrations, and client portfolios. There is no public API.

OpenInsider

OpenInsider is a free SEC Form 4 screener for insider buying, selling, cluster buys, and transaction reports. It is useful for quick table-based research, but there is no formal support SLA, mobile app, or documented public API.

Perplexity Finance

Perplexity Finance combines cited AI answers with stocks, ETFs, funds, crypto, options, news, charts, screens, earnings documents, ownership, government-trading views, and a finance_search tool. Answers still need verification, and consumer plans are billed separately from the API.

Portfolio123

Portfolio123 combines stock and ETF screens, ranking systems, point-in-time backtests, portfolio tracking, broker links, DataMiner, and API access.

Quartr

Quartr provides earnings calls, live transcripts, filings, reports, decks, estimates, AI chat, and investor-relations data. The app is useful for free call and transcript access; Pro and API serve professional research, MCP, webhooks, and integrations.

Revolut (Invest)

Revolut Invest puts stocks, ETFs, bonds, crypto, commodities, alerts, news, and basic portfolios inside the Revolut app where available. It suits existing customers and beginners; fees, products, Trading Pro, and robo features vary by country, entity, and plan.

Roic AI

Roic AI provides company financials, ratios, valuations, transcripts, news, stock screens, spreadsheet add-ins, a REST API, and an MCP server. Plans differ by request rate, history, price-data latency, and commercial-use rights.

SEC API (sec-api.io)

SEC API is a commercial EDGAR service with filing search, real-time feeds, XBRL-to-JSON conversion, section extraction, insider filings, 13F data, and other regulatory datasets. It is for production ingestion rather than building your own parser. The free tier is small and redistribution needs enterprise terms.

SEC EDGAR - Company Filings (Full‑Text Search & Search Filings)

SEC EDGAR is the free public source for company, fund, insider, ownership, prospectus, and XBRL filings submitted to the SEC. It has full-text search, latest filings, RSS, CIK lookup, public JSON APIs, archives, and bulk files. Most filings still need parsing before comparison or analysis.

SEC.gov (EDGAR)

SEC.gov EDGAR is the official free source for U.S. company, fund, insider, and 13F filings, with full-text search, RSS, bulk archives, and public JSON APIs. It is the validation source for filings research, not a polished commercial terminal.

Seeking Alpha

Seeking Alpha combines market news, contributor research, Quant Ratings, analyst ratings, portfolio alerts, screens, and earnings transcripts. It is useful for idea generation and monitoring. Premium and PRO add deeper research, AI summaries, full transcripts, factor grades, and portfolio tools.

Short Interest - FMM

Find My Moat Short Interest is a free, searchable tracker for U.S. stocks with short interest above 20%. It is a discovery table with plain-language context, not a trade signal, export feed, or API.

Simply Wall St

Simply Wall St provides visual company reports, fair value estimates, dividend analysis, portfolio checks, broker imports, and global stock ideas. It suits long-term investors who prefer guided research to raw tables.

Stock Analysis

Stock Analysis combines screeners, financial statements, calendars, news, charts, forecasts, watchlists, and portfolios on web and mobile. Paid plans add longer history, higher limits, exports, ETF holdings, broker sync, and analyst filters. The service does not provide brokerage execution, advice, or programmatic data access.

Stockopedia

Stockopedia combines StockRanks, StockReports, GuruScreens, factor-style screens, Folios, alerts, and exports across selected regions. It suits disciplined Quality, Value, and Momentum research, not brokerage execution or API-based data delivery.

TIKR

TIKR is a browser equity-research terminal for global fundamentals, statements, estimates, valuation, transcripts, filings, and screens. It suits long-term stock research; paid plans add history, coverage, exports, and higher workflow limits.

TipRanks

TipRanks combines analyst ratings, targets, expert rankings, Smart Score, AI analysis, news sentiment, insider signals, hedge-fund activity, and portfolios. It is useful for comparing market views quickly, with Premium and Ultimate adding deeper expert, portfolio, export, and AI tools.

TradingView

TradingView combines charts, screeners, alerts, Pine Script, paper trading, and broker connections across many asset classes. Basic is free. Paid plans raise chart, indicator, alert, watchlist, history, and portfolio limits. Some real-time exchange data costs extra.

Uncle Stock

Uncle Stock screens more than 100,000 global stocks with financial metrics, valuation models, scores, historical tests, watchlists, and alerts. Gold adds CSV and JSON access, an MCP server, and limited portfolio tracking. It is not a broker or an intraday trading simulator.

Unusual Whales

Unusual Whales tracks options flow, dark pools, congressional trades, insider activity, market data, alerts, screeners, and social sentiment. It is built for active traders and alternative-data research, not a broker, portfolio ledger, or guarantee that unusual activity predicts returns.

13F Insight

13F Insight pulls institutional holdings, insider trades, and ownership filings into one research workspace. Its AI can answer questions with filing citations, but the filings arrive late and the generated summaries still need a check against the SEC documents.

Addepar

Addepar is a professional portfolio system for RIAs, family offices, private banks, asset managers, and institutions. It brings accounting, reporting, trading, alternative assets, client portals, and firm data together, with pricing and implementation handled through sales.

Ahrefs

Ahrefs gives investors a way to check the web demand around digital businesses, publishers, marketplaces, SaaS companies, and consumer brands. It measures search traffic, keywords, backlinks, and AI visibility. Those numbers are estimates, not company filings or a portfolio system.

AJ Bell

AJ Bell offers UK dealing, ISA, LISA, junior, trust, company, and pension accounts. It suits investors who want many wrappers and long-term administration, with percentage charges, capped custody, £5 share trades, £1.50 fund trades, and tiered FX.

Alpha Spread

Alpha Spread combines DCF and relative-value estimates, stock reports, screens, alerts, analyst forecasts, watchlists, and a company-question assistant. Free use is metered weekly.

Alpha Vantage

Alpha Vantage is an API-first source for market and economic data. Developers, students, quants, and analysts can pull stocks, funds, FX, crypto, options, commodities, fundamentals, news, sentiment, and macro series with one key. The free quota is small, and commercial use needs separate licensing.

AlphaResearch

AlphaResearch puts filings, transcripts, press releases, estimates, news, insider trades, ownership, and fund holdings in one searchable workspace. It is aimed at document-heavy research. Global coverage and spreadsheet add-ins require Enterprise, and the premium trial asks for a card.

AlphaSense

AlphaSense is a research system for institutional investors, strategy teams, consultants, investor-relations teams, and corporate researchers. It searches broker research, expert transcripts, filings, news, financial data, and private documents. Annual pricing is handled by sales.

ApeWisdom

ApeWisdom tracks ticker mentions across Reddit, WallStreetBets-style forums, crypto communities, and 4chan /biz. It is useful for seeing where retail attention is moving. Mentions are noisy, so a leaderboard is not a view on value or price direction.

AUM 13F

AUM 13F is a low-cost filing research app for asset managers, institutional holdings, private funds, real-estate managers, and LP relationships. It brings together AUM, 13F holdings, EDGAR, IAPD, CAFR-sourced portfolios, source links, and alerts. The underlying filings are still delayed and incomplete.

Autochartist

Autochartist scans markets for chart patterns, technical setups, economic events, and news sentiment. Brokers and trading platforms can use it to provide signals, alerts, position sizing, and MetaTrader or API integrations. Access usually comes through a broker, direct subscription, or commercial agreement.

Bank of England

The Bank of England site is the primary free source for UK monetary-policy decisions, MPC minutes, Monetary Policy Reports, rates, exchange rates, statistics, and yield-curve files. It is a reference source for macro research, not a trading app. Some series arrive as downloads rather than through a complete API.

Bank of Japan (BOJ)

The Bank of Japan site publishes Japan's monetary-policy releases, meeting calendar, statistics, charts, time-series downloads, and API access. It is useful for primary-source rates, FX, money stock, TANKAN, balance-of-payments, and central-bank data. It is not a security research or trading terminal.