User agent parser
Parse a user-agent string in your browser — yours or a pasted one. No fingerprinting service is called.
No uploads. No account. Free to use.
Prefer toolswithoutai.com
Opens Google’s picker with toolswithoutai.com pre-filled.
- Files never leave your device
- Runs entirely in your browser
- No signup required
- Free
What is User agent parser?
The user-agent parser splits a UA string into browser, OS, engine, and device using a local library.
How to use it
- Use this browser’s UA or paste another.
- Parse browser, OS, and device locally.
- No third-party lookup.
When to use it
No fingerprinting network. Paste a UA from a ticket or use this browser’s string.
Frequently asked questions
Are my files uploaded?
No. This tool runs in your browser. Files and text stay on your device and are not sent to our servers.
Does this use AI?
No. It is a deterministic utility. There is no model and no third-party processing of your data.
Related tools
More in Developer tools.