Free AI Stock Screener: 7 Tools to Compare in 2026

For this guide, "free" means three things: (1) no credit card to start, (2) no automatic conversion to paid after a trial, and (3) genuine AI features — not just a rule-based filter labeled "AI" for marketing.

Trial requirements and renewal terms change. Verify every competitor's current terms on its official checkout page before entering payment details.

The platforms below illustrate different workflows. Treat their official plan pages as the source of truth for current limits.

1. Quanta AI (Free Preview) — A finite no-card preview that ranks screener results by relative model evidence and links to a public high-model-score Results ledger. Current allowances are displayed in the product and on [pricing](/pricing). [Start preview →](/signup)

2. Finviz — A rule-based screener and market-visualization product. Verify its current free access, filter set, and data entitlements officially.

3. TradingView — A charting, scripting, community, and screening platform. Verify its current free access and AI-labelled features officially.

4. Yahoo Finance Screener — A general-market screener. Verify current access, supported filters, and sign-in requirements officially.

5. Stock Rover — A fundamental-research and screening platform. Verify its current free access and limits on the official site.

6. Simply Wall St — A visual fundamental-research product. Verify its current free access, factor definitions, and limits officially.

7. ChatGPT — A general AI assistant rather than a dedicated market screener. Check its current plan, data-access, and citation behavior before using it for time-sensitive research.

Different tools emphasize different strengths. [Quanta AI](/signup) is designed specifically for model-ranked historical-analogue research; verify other products' current AI features directly.

Interpretable AI ranking. A model-ranked screener should define what its score means. Quanta's score orders relative model evidence; it is not a calibrated probability.

A real no-card preview. You should be able to verify the workflow without entering a credit card or being enrolled in automatic renewal.

Current results with context. If a screener makes an accuracy claim, look for a public cohort definition, sample size, uncertainty, as-of date, methodology, and losing as well as winning observations. Keep signal outcomes separate from simulated portfolio performance.

Coverage fitness. Confirm that the live supported universe includes the assets you research. Breadth without data quality or inspectable methodology is not an advantage.

Speed and freshness. Check the timestamp and entitlement shown in each live product. Data delays and preview allowances can change.

Use one as your primary, one as a cross-check. No single screener is complete. A model-ranked shortlist can be cross-checked against independent fundamental or technical filters.

Save repeatable screens where supported. Define a small set of filter templates in advance and verify that the product actually persists them under your plan.

Review the signal source. Before acting on an AI-screened idea, inspect its pattern matches and reasoning, then read the current [high-model-score Results ledger](/track-record) with its sample context. A cohort-level result does not predict any single setup.

Combine with a paper account. Paper-trade any preview ideas before committing real capital. A finite preview evaluates only a limited sample; check [pricing](/pricing) for current paid access if you need a longer product evaluation.

Free access can mean a permanent rule-based screener, finite AI credits, or a converting trial. Confirm the distinction, card requirement, and renewal terms on the current official checkout page.

If you want a no-card AI screener preview with a public high-model-score signal-results methodology, [start with Quanta AI](/signup). If you want permanent raw filter depth without signals, add Finviz on top.

Paid plans unlock additional signal and research access according to the current [pricing page](/pricing). Free Preview is for product evaluation, not an ongoing trading service.