User-Agent Generator for Scraping - Real Current UA Strings

Pick a browser and platform, get a real, current User-Agent string, and copy it with one click. A User-Agent is the header your client sends to identify its browser, engine and operating system - servers read it to decide what to serve, and anti-bot systems read it to decide whether to trust you.

Why the default user agent gets you blocked

HTTP libraries announce themselves honestly. Send a request with python-requests/2.32 or Go-http-client/1.1 in the header and you have told the server you are a script before it has looked at anything else. Blocking that is a single rule, and most protected sites have had it in place for years.

Swapping in a real browser User-Agent removes that one trivially cheap reason to refuse you. It is the lowest-effort change in scraping, and it is also the most commonly skipped one.

Keep the User-Agent consistent with everything else

A User-Agent is a claim, and modern anti-bot systems check the claim against the evidence. Claim Safari on macOS while sending Chrome's TLS handshake and header order, and the mismatch itself becomes the detection signal - you are now more suspicious than an honest client would have been.

Match the whole profile: if the header says Chrome on Windows, send Chrome's Accept, Accept-Language and Sec-CH-UA headers in Chrome's order, and ideally drive a real Chrome instance rather than a raw HTTP client. If the header claims a mobile Safari build, the viewport and touch capability should agree.

Rotation: useful, and widely overdone

Rotating User-Agents across requests helps when you are spreading traffic across many IPs and want each session to look like a separate visitor. It stops helping the moment rotation happens inside a single session - a visitor whose browser changes from Chrome on Windows to Safari on iPhone between two page loads is an obvious anomaly.

The practical rule: one User-Agent per session, held for the life of that session, paired with one IP. Rotate both together when you rotate at all. Our sticky vs rotating sessions guide covers how to size those sessions.

Keeping strings current

Browser versions move every few weeks. A User-Agent claiming a Chrome build from two years ago is itself a weak bot signal, because almost no real installation stays that far behind auto-update. The strings in this tool reflect current 2026 stable releases; if you cache a list in your own code, refresh it on a schedule rather than pinning it once and forgetting.

Note also that Chrome now freezes much of its User-Agent detail and exposes the specifics through Client Hints instead. That means the header alone carries less information than it used to, and matters less in isolation than the rest of your fingerprint - see our fingerprint checker for the signals that carry the weight.