User-Agent String Parser
Free user agent parser. Paste any user-agent string, or use your own, to see the browser and version, rendering engine, operating system, device type and whether it is a bot.
What is a User-Agent String Parser?
A user agent parser decodes the User-Agent string that browsers and bots send with every request. It identifies the browser and version (Chrome, Edge, Firefox, Safari, Opera, Samsung Internet), the rendering engine, the operating system and version, whether the device is desktop, mobile or tablet, and whether the string belongs to a crawler. Leave the input empty to parse your own browser.
Execution Privacy:Toolbrix processes this utility using🔒 Processed locally — client string regex parser.
How to use this User-Agent String Parser
Paste a user-agent string from your logs, or leave the box empty.
Read the browser, OS and device details in the result.
Frequently Asked Questions
Q:Why does every browser say "Mozilla" and "Safari"?
For historical compatibility, browsers copy tokens from older browsers. The real browser is identified by the most specific token, such as Edg/ or OPR/.
Q:Is user-agent detection reliable?
It is a hint, not proof. User agents can be changed, and Chrome is reducing the detail it sends. Use feature detection in code where possible.
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