★ THE COMMUNITY-RANKED FREE INVESTING TOOL LEADERBOARD ★
VOL. XCIV, NO. 247
Live community ranking · Top 3 free polygon.io tools
Best Free Tools using Polygon.io
The free tools powered by Polygon.io that investors trust most, ranked by the people who actually use them.
Every tool here offers a genuine free tier and leans on Polygon.io data. We filtered 3 total matching tools inside a directory of more than 361 investing platforms down to 3 free options, so you can compare useful zero-cost choices before moving into paid upgrades.
Community-ranked · Free tiers only · Not financial advice
Top 3 picks
3 picks- 1Top pick
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.
Best forInvestment research workspace · Stock screening · Charting · Portfolio analytics · Market monitoringWatch-outsNo public APISome downloads are vendor-restricted0Data partner votesFree with signupPricing Free • From $39/moPlatforms - 2
Stock Analysis is a web and mobile research hub for investors who want stock screeners, financial statements, earnings calendars, market news, charts, analyst forecasts, watchlists, and portfolio tracking in one approachable workspace. It is strongest as an everyday due-diligence layer for researching public companies, ETFs, mutual funds, IPOs, dividends, corporate actions, and market movers without needing a professional terminal. Free access is useful but ad-supported and limited; Pro and Unlimited add broader history, saved screeners, alerts, exports, full ETF holdings, broker sync, advanced analyst filtering, and higher watchlist or download limits. It is not a broker, advisory service, portfolio accounting system, public API, custom quant platform, or data redistribution source.
Best forStock research · Stock screening · Portfolio tracking · Charting · Fundamental researchWatch-outsNo public APIFree access has ads and data limits0Data partner votesFree, no signupPricing Free • From $79/yrPlatforms - 3
SentiSense is a beta AI market-intelligence and data API platform for investors and developers who want stock data, sentiment, news clustering, social signals, institutional flows, insider trades, congressional trading disclosures, and AI-generated insights in one workflow. It serves as a signal layer for research, not as a broker or adviser.
Best forAI research workspace · Market monitoring · Financial data API · Stock research · Insider and institutional trackingWatch-outsBeta product with plan limitsCoverage claims need caution0Data partner votesFree with signupPricing Free • From $15/moPlatforms
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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.
Find me here:
- Twitter / X: @Jera_Value
- Website: Jera Value
Got questions or suggestions? I'm all ears!
Missing a Tool?
Discovered a gem I don't have here yet? Drop the link below and I'll check it out ASAP. Tagging me on X works too! Can't wait to see what you've found!
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.