User-Agent Parser
Paste any User-Agent string to decode browser, OS, engine, device and bot status. Runs entirely in your browser — nothing is sent to a server.
Need to rotate user-agents at scale?
Rainproxy ships with realistic fingerprint rotation built in — fresh UA, headers and TLS profiles on every session. Pair it with 75M+ residential IPs and you're indistinguishable from a real user.
Decode any User-Agent in milliseconds
Every UA string is a tiny manifest of browser, engine, OS and device. We parse it client-side so nothing leaves your machine.
Paste the string
Drop any UA from your logs, analytics or a real request — even one you've never seen before.
Local regex pipeline
A layered matcher pulls browser, version, engine, OS and device type — fully in your browser.
Bot signature scan
Known crawlers, headless browsers and HTTP clients are flagged so you can separate humans from bots.
Desktop vs mobile vs TV
Reliable device classification — handy when your analytics is lying or your CDN is splitting traffic.
Headless detection
Catches Puppeteer, Playwright, Selenium, curl, axios and the usual scraping fingerprints.
Privacy-first
No network call. The UA string never leaves the page — paste production data without worry.