Every free browser automation tier that clears our bar in 2026: 4 offers meet the criteria and 0 are demoted with a named reason. Verified pricing, recorded changes, and a published ranking method.
Free OSS (Apache 2.0). Microsoft-backed end-to-end testing and browser automation for Chromium, Firefox, and WebKit. Auto-wait, network interception, mobile emulation Best for open source projects.
Headless browser API — 1,000 units/mo (1 unit = 30 sec), 2 concurrent browsers, 1-minute max session with reconnects, automatic captcha solving, BrowserQL editor. Supports Chrome, WebKit, Firefox
Free OSS (Apache 2.0). Google-backed Chrome/Chromium automation library. Headless and headful modes, PDF generation, screenshots, network interception. Firefox support via WebDriver BiDi Best for open source projects.
Headless browser infrastructure — 1 browser hour/mo, 1 concurrent browser, 15-minute max session, 7-day data retention, 1 project
Nothing in this category is demoted today — we hold no disqualifying record against any of these offers.
| Vendor | Free Tier | Key Limits | Stability | Verified |
|---|---|---|---|---|
| Playwright | Free OSS | Free OSS (Apache 2.0). Microsoft-backed end-to-end testing and browser automation for Chromium, Firefox, and WebKit. Aut... | — | 2026-07-29 |
| Browserless | Free | Headless browser API — 1,000 units/mo (1 unit = 30 sec), 2 concurrent browsers, 1-minute max session with reconnects, au... | stable | 2026-08-26 |
| Puppeteer | Free OSS | Free OSS (Apache 2.0). Google-backed Chrome/Chromium automation library. Headless and headful modes, PDF generation, scr... | — | 2026-07-28 |
| Browserbase | Free | Headless browser infrastructure — 1 browser hour/mo, 1 concurrent browser, 15-minute max session, 7-day data retention, ... | stable | 2026-08-12 |
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