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Paste any User-Agent string — or use your own — to see the browser, engine, operating system and device, broken out into clean cards. Free.

Everything runs in your browser — nothing is uploaded.

Bot / crawler
Paste a User-Agent or use your own to begin.
Browser
Name
Version
Engine
Name
Version
Operating system
Name
Version
Device
Type
Vendor
Model
CPU
CPU
Raw string

					
				

About User-Agent Parser

The User-Agent Parser decodes any User-Agent string into clean, labeled cards: browser name and version, rendering engine, operating system and version, device type, vendor and model, plus CPU architecture where the string reveals it. One click loads your own browser's User-Agent for an instant self-check.

It also flags bots and crawlers, which makes it handy for log analysis — paste a suspicious UA from your access logs and see immediately whether it claims to be a search engine spider or a real browser. The raw string stays visible alongside the parsed breakdown for reference.

Parsing happens entirely in your browser; nothing you paste is uploaded. It is a free, quick alternative to eyeballing the notoriously misleading UA syntax, where almost every modern browser claims to be Mozilla.

How to use User-Agent Parser

  1. Paste a User-Agent string into the input, or click "Use my User-Agent" to analyze your own browser.
  2. Click Parse (a sample string is available if you just want to explore).
  3. Read the result cards: browser, engine, operating system and device, with name, version, vendor and model where available.
  4. Check the bot/crawler indicator when analyzing strings from server logs.
  5. Copy any value you need for reports or filters.

Frequently asked questions

Historical compatibility. Browsers began imitating each other's strings decades ago so servers would send them full-featured pages, and the Mozilla prefix stuck. That is exactly why a parser beats reading UAs by eye.

Yes. Known bot signatures are flagged, so you can quickly classify entries from access logs — though sophisticated scrapers can fake a normal browser string.

As accurate as the string allows. Many desktop UAs omit vendor and model, and some browsers now freeze or reduce UA detail, so unknown fields are reported honestly as unknown.

No. Parsing runs entirely in your browser, so log data never leaves your device.

Yes — free with no limits.


Popular searches
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