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User agent parser

Read a user-agent string: browser, engine, operating system and device type, parsed in your browser. Your own browser’s is filled in.

Filled in with this browser’s own user agent; paste any other to read it.

Stays on your device

Everything runs in your browser. Nothing you type is sent to Sellstamp or anyone else.

Building something to sell?

Sellstamp has a storefront, a checkout into your own payment account, automatic delivery and an API with webhooks. Open a free store

How to use it

  1. Your own browser’s user agent is filled in.
  2. Paste any other user-agent string to read it instead.
  3. Read the browser, engine, system and device.

Nothing you paste leaves this page

The conversion runs in this browser tab. Nothing is sent to Sellstamp or anyone else, which matters for configuration files, customer exports and tokens.

Treat it as a hint

Browsers reduce the detail in their user-agent strings to protect privacy, and some pretend to be others, so the version and device can be approximate. Parsing uses the bowser library (MIT). For feature support, test the feature itself rather than the browser name.

Questions

What is a user agent?

A line of text browsers send with every request, naming the browser, engine and system.

Why does my browser show an older version or a generic system?

Browsers now reduce user-agent detail on purpose, for privacy.

Can a user agent be faked?

Yes, easily. Never rely on it for security decisions.

Is the user agent I paste sent anywhere?

No. It is parsed in your browser.