You do not need expensive subscriptions to research stocks well. Below are ten free stock research tools useful for Indian investors, as of October 2026. Many offer free versions with optional paid features. This list is for information only; PositoAI has no affiliation with other tools listed.
The list
1. PositoAI. Free company rankings by Positivity Score, calculated by a highly complex proprietary algorithm, regulatory red flags across 7 major markets, ready-made lists, screeners, corporate actions, bulk and block deals, and plain-language guides, with no sign-up.
2. NSE and BSE websites. The official, free source for filings, results, shareholding patterns, corporate actions, bulk and block deals and index data.
3. Screener.in. Popular for long-term financial statements, ratios and custom stock screens.
4. Tickertape. Company data, ratios and screening with visual summaries.
5. Trendlyne. Financials, shareholding changes, institutional holdings and alerts.
6. Moneycontrol. News, prices, financial statements and portfolio tracking.
7. TradingView. Widely used for interactive price charts and technical indicators, with a free version.
8. Value Research Online. Well known for mutual fund data, ratings and comparisons, along with stock information.
9. Company annual reports. Free on company websites and exchange portals, and still the most detailed source on any business.
10. SEBI and MCA portals. Regulatory orders, offer documents and company registration details, essential for checking red flags.
How to combine free tools
A practical routine: use a screener or ranked list to find candidates, a company page for a quick overview and red flags, financial history to check trends, official filings to confirm key numbers, and news to understand recent events. Each tool covers a different step; together they make a thorough, free research process.
Free versus paid
Paid plans usually add more screens, longer history, alerts or advanced charts. For most long-term investors, free tools cover the essentials. Before paying, check whether you will actually use the extra features.
What each type of tool is best at
Ranked lists and screeners help you find candidates quickly. Company pages and financial history help you understand a business. Official filings confirm facts and reveal details. News platforms explain recent events. Charting tools show price behaviour. Regulatory portals reveal legal and compliance problems. No single tool does everything well, which is why combining two or three works best.
Build a simple research checklist
Write down the questions you want answered for every company: What does it do? Is revenue growing? Is it profitable, with cash flow to match? How much debt does it carry? Are promoters pledging shares? Are there regulatory red flags? Using the same checklist every time makes your research consistent and helps you compare companies fairly.
Things to keep in mind
Data on third-party platforms can contain errors or lags. Confirm important figures in official sources, and be cautious about any tool that promises guaranteed returns or specific buy and sell calls.
Frequently asked questions
Can I research stocks properly for free?
Yes; official filings plus free platforms cover the essentials.
What is a stock screener?
A tool that filters companies by criteria such as size, ratios or growth.
Which tool is most reliable?
Official filings on the NSE, BSE and company websites are the original source.
Do I need charting tools?
Mainly for technical analysis; long-term investors may use them less.
How to use this with PositoAI
Try Explore for ready-made lists, Screen to combine filters, Screeners for single metrics, and Red Flags to check regulatory issues.
Summary
Ten free stock research tools for Indian investors are PositoAI, the NSE and BSE websites, Screener.in, Tickertape, Trendlyne, Moneycontrol, TradingView, Value Research Online, company annual reports and the SEBI and MCA portals. Combine them in a routine, confirm important numbers in official filings, and pay for upgrades only if you will use them.