BROWSER USE - Browser Use Agents: give Browser Use a task and receive completed work. API V4 is current for new integrations. - Browser Infrastructure: connect your agent or automation to managed browsers through SDK, REST, or CDP. Starts at $0.02/browser-hour. - Developer tools: Open Source, Browser Harness, SDK, and MCP support the two products above. [Developer Index](https://browser-use.com/index.md) [Product Map](https://browser-use.com/llms.txt) [Full Product Context](https://browser-use.com/llms-full.txt) [Pricing](https://browser-use.com/pricing.md) [Cloud Docs](https://docs.browser-use.com/cloud/quickstart) [Open Source Docs](https://docs.browser-use.com/open-source/introduction) --- # Random User Agent Generator ## Random User Agent Generator Generate a random, current user agent string for Chrome, Edge, Firefox or Safari on Windows, macOS, Linux, Android or iOS. Copy one or the whole list. Versions checked against official release data. ## How it works ### Pick a browser and system Leave both on Any for a random string, or narrow to one browser or operating system. ### Generate or browse Generate another to draw a different string. Every matching string is also listed under the generator. ### Copy it Copy a single string, copy the whole list, or download it as a text file. ### Why are some version numbers 0.0.0? Chrome and Edge now send only the major version in the user agent, followed by .0.0.0, and keep the operating system token fixed. Safari also freezes its operating system version. The strings here follow those formats. ### Where do the versions come from? Chrome versions come from Chromium Dash, Firefox from Mozilla's product details, Edge from Microsoft's Stable channel release notes and Safari from Apple's release notes. The check date and links are listed under the generator. ## Need more than a user agent? Browser Use cloud browsers run a maintained Chromium fork with residential proxies. [See stealth browsers](https://browser-use.com/stealth-browsers) Chrome on Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.36 Versions checked 2026-10-23. Sources: - [Chrome 156 Stable since October 20, 2026 (157 goes to a small early stable share first and reaches Stable on November 3)](https://chromiumdash.appspot.com/schedule) - [Chrome Stable builds for each platform](https://chromiumdash.appspot.com/releases?platform=Windows) - [Chrome user agent reduction: frozen OS and minor version tokens](https://www.chromium.org/updates/ua-reduction/) - [Microsoft Edge Stable 156.0.4314.42, October 22, 2026](https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnote-stable-channel) - [Edge user agent format: the Chromium string plus an Edg token](https://learn.microsoft.com/en-us/microsoft-edge/web-platform/user-agent-guidance) - [Firefox 158.0.1, released October 20, 2026](https://product-details.mozilla.org/1.0/firefox_history_stability_releases.json) - [Firefox user agent format, macOS version capped at 10.15](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/User-Agent/Firefox) - [Safari 27.0, released September 14, 2026](https://developer.apple.com/documentation/safari-release-notes/safari-27-release-notes) - [Safari freezes the OS version in its user agent on macOS and iOS](https://webkit.org/blog/17333/webkit-features-in-safari-26-0/) - [Safari on iOS reports the frozen token 18\_7 (WebKit bug 298260, comment 10)](https://bugs.webkit.org/show_bug.cgi?id=298260) ## Current user agent list 12 user agents, versions checked 2026-10-23. - Chrome on Windows `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.36` - Chrome on macOS `Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.36` - Chrome on Linux `Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.36` - Chrome on Android `Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Mobile Safari/537.36` - Edge on Windows `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.36 Edg/156.0.0.0` - Edge on macOS `Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.36 Edg/156.0.0.0` - Edge on Linux `Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.36 Edg/156.0.0.0` - Firefox on Windows `Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:158.0) Gecko/20100101 Firefox/158.0` - Firefox on macOS `Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:158.0) Gecko/20100101 Firefox/158.0` - Firefox on Linux `Mozilla/5.0 (X11; Linux x86_64; rv:158.0) Gecko/20100101 Firefox/158.0` - Safari on macOS `Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/27.0 Safari/605.1.15` - Safari on iOS `Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/27.0 Mobile/15E148 Safari/604.1` ## Why a user agent alone does not get past bot detection - Chromium browsers also send [Sec-CH-UA client hint headers](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Sec-CH-UA) and expose navigator.userAgentData. A swapped user agent that disagrees with them is easy to spot. - Page scripts read many other signals, such as navigator.webdriver, the WebGL renderer, plugins and window sizes. A new user agent changes none of them. - The [TLS handshake fingerprint](https://developers.cloudflare.com/bots/additional-configurations/ja3-ja4-fingerprint/) comes from the HTTP client itself, so a curl or Python request with a Chrome user agent can still be told apart from Chrome. See what your own browser gives away with the [bot detection test](https://browser-use.com/tools/bot-detection-test).