PrivTab

User-Agent Parser

Paste a User-Agent string, or use your own, to see which browser, system and device it describes, or whether it is a bot.

Runs in your browser · No uploads

  • Nothing leaves your device
  • No server-imposed size limits
  • No sign-up, no watermark
  • Free

How to read a User-Agent

  1. Your own browser's User-Agent is filled in; paste another one, or many from a log, one per line.
  2. Read the browser, engine, system and device.
  3. For many lines, download the table as CSV.

What it recognises

  • Chrome, Edge, Safari, Firefox, Opera, Samsung Internet and in-app browsers (Instagram, Facebook, WeChat).
  • Windows, macOS, iOS, iPadOS, Android, ChromeOS, Linux, game consoles and TVs.
  • Search engine and AI crawlers (Googlebot, Bingbot, GPTBot, ClaudeBot…) and tools such as curl and Python Requests.

Limits of User-Agent strings

Browsers now hide details on purpose: Windows 11 says it is Windows 10, macOS always says 10.15.7, and Chrome on Android hides the phone model. Anything can also be typed into a User-Agent, so it is a hint, not proof. For your own browser, the page also shows Client Hints, which are more exact where the browser offers them.

Frequently asked questions

Is my User-Agent sent anywhere?

No. It is read from your browser and parsed in the page; nothing is uploaded or looked up online.