About User Agent Parser
User Agent Parser is a local-first converters utility on DevTooKit for everyday ua parser tasks. Parse User-Agent strings to detect browser, OS, device type, and rendering engine. DevTooKit keeps ua parser work on-device and installable as a PWA for offline use. Pair it with neighboring tools instead of hopping across random websites.
What stays local: Inputs you process with User Agent Parser.
What you can do with User Agent Parser
- Free online user agent parser — no account required
- Transform UA Parser without installing CLI utilities
- Runs locally in your browser (nothing uploaded for processing)
- Works offline after installing the DevTooKit PWA
How to use User Agent Parser
- Open User Agent Parser. Go to the free User Agent Parser page on DevTooKit.
- Enter your input. Paste or type your ua parser data — it stays in this browser tab.
- Run the tool. Use User Agent Parser to get results instantly with no server round-trip for processing.
- Copy and continue. Copy the output into your editor, PR, or API client as needed.
Privacy
What stays local: Inputs you process with User Agent Parser. DevTooKit is local-first — no signup wall, no server-side processing for this tool, and no watermark on results.
Related tools
FAQ — User Agent Parser
Privacy, offline use, and how this free online tool works.
Does User Agent Parser upload my data to a server?
No. User Agent Parser runs in your browser. Your input stays on this device and is not sent to DevTooKit for processing.
Is User Agent Parser free?
Yes — free, with no account and no paywall to use the core ua parser workflow.
How accurate is User Agent Parser?
It uses well-known client-side libraries and browser APIs. Unusual edge-case formats may still need a manual check.
Can I use User Agent Parser offline?
Yes after the first visit. Install DevTooKit as a PWA and this tool keeps working without a network connection.