OS/2

A living catalog of real browser User-Agent strings seen on CheckProxy.org and shared IP databases. Filter by browser, operating system, device type, or search the raw string — ideal for antidetect profiles and proxy testing.

1864 entries · Last updated May 4, 2026, 02:56:40 PM

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User-Agents on OS/2 — updated May 4, 2026, 02:56:40 PM

2 results
# Raw User-Agent Browser OS Device
1 Mozilla/5.0 (OS/2; Warp 4.5; rv:45.0) Gecko/20100101 Firefox/45.0 SeaMonkey/2.42.9esr SeaMonkey 2.42.9esr OS/2 —
2 Mozilla/5.0 (OS/2; U; OS/2; en-US) AppleWebKit/533.3 (KHTML, like Gecko) QupZilla/1.3.1 Safari/533.3 QupZilla 1.3.1 OS/2 —

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