Best Screeners Tools for Investing

Value Line

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Value Line is a long-running investment research publisher with proprietary ranks, analyst commentary, single-page equity reports, screeners, watchlists, alerts, charting, newsletters, and separate stock, fund, ETF, option, and selection services. It is best evaluated as a subscription research service, not a modern data API, brokerage platform, or single bundled terminal.

Seeking Alpha

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Seeking Alpha is a stock research and investment news platform for investors who want market news, contributor analysis, Quant Ratings, analyst ratings, portfolio alerts, screeners, and earnings transcript research in one place. It is strongest for idea generation and ongoing monitoring, with Premium or PRO needed for deeper research, AI summaries, full transcripts, factor grades, and advanced portfolio tools.

Fey

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Fey was an AI-native investing research workspace for stocks and ETFs, known for natural-language screening, AI earnings and filing summaries, personalized news, portfolio analysis, and a polished desktop-first workflow. It is no longer a current signup option: Fey joined Wealthsimple in August 2025 and its standalone service wound down on September 30, 2025. Historical context covers the former product and comparable AI investing research workflows, while current users need available alternatives.

Tweenvest

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Tweenvest is a web-based stock research app with company dashboards, screeners, watchlists, portfolio tracking, transcripts, valuation tools, and AI-assisted analysis. It is positioned for retail investors, especially European and Spain-aware workflows, with the best coverage and AI features reserved for higher tiers.

Investing.com

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Investing.com is a global market portal for investors who want quotes, charts, financial news, an economic calendar, watchlists, alerts, portfolio tracking, screeners, and mobile market monitoring in one place. The free site is strongest as a broad market dashboard, while InvestingPro adds the paid research layer with AI tools, stock ideas, fair value estimates, Health Scores, ProTips, and deeper fundamentals.

FINVIZ

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FINVIZ is best known as a fast U.S. stock screener with heat maps, quote pages, insider activity, news, and portfolio watchlists. It works well when you want to move from a broad market view to a tighter list of stocks using both fundamental and technical filters. The free version is useful for delayed research; FINVIZ Elite is the serious workflow upgrade for real-time quotes, intraday charts, alerts, exports, advertised API access, and deeper ETF and portfolio tools.

Perplexity Finance

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Perplexity Finance is an AI-assisted finance research experience that combines cited answers with stock, ETF, fund, crypto, options, news, charts, screeners, earnings documents, ownership data, government trading views, and a developer finance_search tool. It is strongest for quick cited research and agentic finance data access, but AI answers still need verification and consumer plans are separate from Agent API billing.

Koyfin

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Koyfin is a modern web and mobile financial terminal for investors, analysts, and advisors who want dashboards, charts, screeners, portfolios, news, alerts, transcripts, and market data without using a traditional desktop terminal. It is strongest for building custom research workspaces across equities, ETFs, funds, macro data, FX, commodities, crypto, yield curves, and advisor reporting. Free access is useful for trialing the workflow, while paid and Advisor tiers unlock more dashboards, screens, history, alerts, reporting, integrations, and client-portfolio features. It does not offer a public API.

Simply Wall St

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Simply Wall St is a visual stock analysis and portfolio platform for long-term investors who prefer guided fundamental summaries over raw data tables. It is best known for its Snowflake-style company reports, global stock ideas, fair value views, dividend analysis, portfolio diagnostics, broker imports, and easy-to-scan visual research.

EPSMomentum

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EPSMomentum is a U.S. stock and ETF analytics platform for earnings momentum, estimate revisions, PEAD drift, timing signals, scanners, AI analysis, and market dashboards. It is useful when earnings acceleration and entry-timing discipline are central to your research process.

Morningstar Investor

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Morningstar Investor is a subscription research product for long-term investors who want Morningstar ratings, analyst reports, fair value estimates, moat research, screeners, and portfolio analysis. It is especially useful for comparing stocks, funds, and ETFs through Morningstar’s proprietary research framework rather than for active trading or broker-connected portfolio automation.

Uncle Stock

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Uncle Stock is a global fundamental stock screener and screener-backtesting platform for DIY and value investors who want many financial metrics, guru-style screens, watchlists, historical backtests, CSV export, and AI/MCP stock-search access. It is strongest for long-term fundamental screening and value research, while API access, advanced backtesting, exports, crypto coverage, and unlimited MCP usage are gated to higher plans.

CapEdge

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CapEdge is a free SEC filings, transcripts, IPO, ownership, ETF exposure, and short-interest research platform from Finsight for US equity-capital-markets work. It is strongest for investors who want a registered, no-cost workflow around EDGAR search, filing diffs, filing alerts, XBRL financial charts, holdings, and IPO calendars without paying for a filings terminal.

Stock Unlock

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Stock Unlock is a global stock and ETF research platform that combines stock scores, screeners, DCF tools, comparison charts, watchlists, and portfolio tracking. It is built for retail investors who want research and portfolio context together, with deeper history and broker links moving behind paid plans.

PortfoliosLab

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PortfoliosLab is a web-based portfolio analytics platform for backtesting, optimization, risk metrics, correlations, screeners, and AI-assisted portfolio workflows. It is useful for comparing stocks, ETFs, funds, crypto, and model portfolios, with more history, imports, exports, and MCP access gated by paid tiers.

OpenBB

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OpenBB combines an open-source financial data layer with a hosted Workspace for dashboards, AI research, custom agents, and team workflows. It is best for analysts, quants, developers, and firms that want to connect their own market data, internal datasets, provider API keys, widgets, MCP tools, and AI workflows instead of buying a closed terminal. Community access is useful for individuals, while Pro adds collaboration, exports, Excel, RBAC, SSO, MFA, and private deployment options. OpenBB does not provide production market data itself; it orchestrates connectors, your data, and your vendor access.

Financial Modeling Prep (FMP)

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Financial Modeling Prep (FMP) is a market-data API and spreadsheet-data provider for developers, analysts, quants, and product builders who need equities, ETFs, funds, FX, crypto, commodities, macro, ESG, ownership, news, calendars, transcripts, and fundamentals from one vendor. It is strongest when you want REST and WebSocket access plus Excel and Google Sheets add-ins at a lower entry price than enterprise terminals. The main buying questions are plan limits, geography, history depth, and dataset access: the free Basic tier is a limited EOD sandbox, while real-time, global, transcript, 13F, holdings, intraday, and bulk workflows require paid tiers.

OnlyDividends

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OnlyDividends is a privacy-first dividend-income tracker for investors who want to manually enter holdings, monitor dividend paydays, estimate net income after withholding tax, and visualize income trends without connecting a broker or bank. It is strongest for dividend investors who value simple portfolio income tracking, mobile access, multi-currency support, dividend calendars, health scores, and public dividend-stock pages. Free access tracks a small portfolio, while Premium raises the stock limit and adds priority support. It is not a brokerage, tax-lot system, rebalancer, public API, or full portfolio accounting product.

Interactive Brokers (IBKR)

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Interactive Brokers (IBKR) is a global multi-asset brokerage platform for active investors, professionals, quants, and institutions who need broad market access, advanced order types, SmartRouting, APIs, paper trading, and portfolio analytics. It is strongest for serious execution and automation workflows, but commissions, market-data subscriptions, product availability, and API limits vary by market, account type, and jurisdiction.

GeminIQ

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GeminIQ is a browser-based U.S. public-company research platform built around as-filed SEC financial statements. It combines XBRL-traceable 10-K and 10-Q data with calculated metrics, interactive visualizations, reusable custom tables, stock screening, watchlists and comparable-company analysis, Form 4 insider transactions, institutional ownership monitoring, and post-earnings price-reaction views. It is strongest for filing-grounded fundamental research, but coverage is U.S.-focused and new filing data is available the next day rather than in real time.

ORTEX

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ORTEX is a market-data and analytics platform best known for short interest, securities lending, options flow, and trading-signal context. It fits active investors, analysts, and data teams that need more than a basic quote page, with deeper web-app and API access moving behind paid tiers.

Prospero.ai

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Prospero.ai is a free mobile-first AI signal app for U.S. stocks and ETFs, with proprietary short-term and long-term signals, daily screens, stock picks, watchlists, notifications, and education. It is useful for beginner-friendly signal discovery, but it is not full fundamental research, broker sync, a web terminal, public API, or proof that a signal will work.

Roic AI

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Roic AI is a financial data, stock research, and API platform for investors and developers who want company financials, transcripts, news, screeners, exports, spreadsheet endpoints, AI research assistance, and MCP or ChatGPT workflows. It is strongest for fundamentals and agent-ready data access, with worldwide coverage on every plan, but plan differences matter for rate limits, history depth, transcript depth, and commercial API use.

OpenInsider

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OpenInsider is a free, utilitarian SEC Form 4 insider-trading screener for investors who want to monitor insider buying, insider selling, cluster buys, and transaction reports without paying for a data terminal. It is useful for fast first-pass insider activity research, but the interface is table-heavy and there is no formal paid support, SLA, mobile app, or documented public API.

Short Interest - FMM

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Short Interest - FMM is Find My Moat’s free high-short-interest stock tracker for users who want a quick searchable list of U.S. stocks with short interest above 20%. It is strongest for first-pass short-interest and short-squeeze discovery inside Find My Moat, with a sortable table and plain-English education, but it depends on an upstream source and is not a trade signal, export feed, or API.

Unusual Whales

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Unusual Whales is an options-flow and market-activity platform for traders who want real-time U.S. options trades, dark pool/off-exchange activity, alerts, screeners, news, congressional trading data, and developer API access. It is strongest for alert-driven options and order-flow research, with portfolio tracking, API, WebSocket streaming, and historical full-market options data handled through separate paid surfaces.

Fintel

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Fintel is a market-signal research platform for investors who want short interest, off-exchange volume, institutional ownership, insider trades, ETF exposure, options sentiment, filings, screeners, dashboards, alerts, APIs, and AI-assisted research in one place. It is strongest for ticker-level signal pages and ownership/short-interest workflows that help explain positioning, crowding, and unusual activity before deeper fundamental work. Many premium datasets, AI workflows, exports, options flow, and portfolio tools are tier-gated, and the signals should be treated as research inputs rather than investment recommendations.

Simply Safe Dividends

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Simply Safe Dividends is a dividend-focused research and portfolio tracker built around 0-100 Dividend Safety Scores, income forecasts, dividend alerts, screeners, valuation charts, and portfolio monitoring. It is strongest for U.S.-focused income investors who want to avoid dividend cuts, but it is a paid research product after trial, not a broker, tax engine, or public data API.

Alpha Spread

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Alpha Spread is a value-investing research platform for investors who want quick intrinsic value estimates, DCF and relative valuation, stock reports, screeners, watchlists, alerts, analyst forecasts, and AI-assisted company questions. It is strongest for first-pass fair-value research, but free usage is metered weekly and automated valuation outputs should be reviewed as assumptions, not final investment decisions.

Dividend Wealth

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Dividend Wealth is a web-based dividend portfolio tracker and research platform for investors who want income forecasts, dividend scorecards, a screener, calendar tools, and optional Plaid brokerage linking. It is useful when dividend cash-flow planning matters more than active trading or broad terminal coverage.

Quiver Quantitative

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Quiver Quantitative is an alternative-data platform for investors who want dashboards, screeners, alerts, backtests, and API access around political trading, insider activity, institutional holdings, lobbying, government contracts, patents, app data, ETF exposure, dark-pool activity, and related datasets. It is strongest when conventional fundamentals are not enough and users want differentiated public-disclosure signals. Web Premium and Quiver API are separate products with different prices, trials, dataset tiers, and commercial-use rules. Alternative data can be noisy and lagged, so it needs validation before being treated as a signal.

WhaleWisdom

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WhaleWisdom is a 13F, institutional ownership, insider, and hedge-fund holdings platform for investors who track filer activity, fund portfolios, watchlists, backtests, exports, and API workflows. It is useful for holdings research, but 13F data is delayed and the deeper history/API workflow is paid.

Wisesheets

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Wisesheets is a spreadsheet-first stock-analysis add-on for Excel and Google Sheets, built around formulas for company financials, key metrics, prices, dividends, analyst data, ETF/fund data, options chains, and broker-connected portfolio data. It is best for investors who want to build research models inside spreadsheets, with commercial use, faster data, and advanced screener workflows gated by plan.

Zacks (Zacks.com)

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Zacks.com is a retail equity and fund research site built around the Zacks Rank, earnings-estimate revisions, Style Scores, screeners, calendars, ETF research, and portfolio alerts. It is strongest for investors who specifically want Zacks' ranking framework, earnings-surprise workflows, analyst estimate context, and long-running premium research services rather than a modern modeling workspace. Free access covers basic research pages and screeners; Premium and higher tiers unlock the full #1 Rank list, Equity Research Reports, Focus List, Earnings ESP, and premium screens. It is not a broker, public API, portfolio accounting system, or licensed data feed.

EODHD

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EODHD is a market-data API provider for developers, quants, and analysts who need REST, WebSocket, spreadsheet, and AI-agent access to historical prices, fundamentals, calendars, news, sentiment, options, forex, crypto, and other financial datasets. It is strongest for API-first data workflows, but free usage is tiny, commercial licensing is separate, and some datasets require add-ons or marketplace plans.

ETF Insider

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ETF Insider is a web-based ETF, mutual fund, and stock portfolio visualization tool for investors who want to see holdings overlap, concentration, correlations, factor exposure, and efficient-frontier style portfolio tradeoffs. It is strongest for diagnosing hidden ETF overlap in U.S.-listed portfolios, with full holdings depth, Excel export, API access, and white-label options gated by Pro or Enterprise plans.

Yahoo Finance

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Yahoo Finance is the familiar free market portal for quotes, business news, watchlists, portfolios, charts, screeners, and basic company research. It works best for mainstream investors who want a quick read on markets, holdings, earnings, analyst expectations, and news without learning a specialist terminal. My Portfolio adds manual portfolios, watchlists, CSV import/export, and supported brokerage linking. Premium plans add portfolio analytics, premium research, stock ideas, screeners, historical downloads, and reduced ads, but data delays and subscription availability vary by market.

Charles Schwab

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Charles Schwab is a major U.S. brokerage with commission-free online stock and ETF trading, broad account types, research tools, screeners, tax workflows, and the thinkorswim platform suite for active traders. It is strongest for investors who want one regulated brokerage relationship for long-term investing, options, futures, forex, paper trading, alerts, market data, and developer-authorized Trader API workflows. Many core tools are free with an approved account. Schwab is a broker, not an open market-data API or generic portfolio app.

SecForm4.Com

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SecForm4.com is a U.S. insider trading and ownership monitoring site for Form 4, Forms 3 and 5, 13D/13G, and 13F filings from EDGAR. It fits users searching for SecForm4, insider trading trackers, Form 4 activity, and 13D/13G monitoring, with free public access and advanced ownership views for power users. The right use case is monitoring SEC filing signals before checking transaction context, issuer fundamentals, and current ownership. It is not a broker, global insider-disclosure database, portfolio tracker, public API, or standalone buy/sell signal.

Beanvest

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Beanvest is a quality-investing research app for long-term investors who want opinionated stock reports, a proprietary Quality Score, component scores, fair value labels, and a compact quality-stock screener. It is strongest for investors who like a framework around moat, pricing power, predictability, financial strength, capital allocation, and management, but coverage is selective, premium fair-value data is gated, and there is no free trial or refund policy.