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SOCKS5 Proxy Checker

Free online SOCKS5 proxy tester with auto-detection, geo lookup, ASN/ISP info, and anonymity check. No signup, up to 5,000 lines per session.

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What the SOCKS5 checker shows

Supported SOCKS5 formats

ProxyLab auto-detects SOCKS5 proxies in any common format:

Mix formats freely in one list — each line is parsed independently.

How to check SOCKS5 proxies

  1. Open the homepage and make sure "Check proxies" mode is selected
  2. Paste your SOCKS5 list into the input — one per line
  3. Click "Check" — results stream in as they arrive (up to 30 parallel)
  4. Download working, copy, share via 24h link, or convert format

One proxy takes 5–10 seconds. 100 proxies — about a minute.

How is SOCKS5 different from HTTP?

SOCKS5 works at the TCP/UDP layer, while HTTP proxies only handle HTTP traffic. SOCKS5 is more universal (any protocol can ride on top), faster on non-web tasks, and supports UDP. More — see SOCKS5 vs HTTP.

FAQ

What does "proxy doesn't work" mean?

It means we couldn't connect to the SOCKS5 server, the test request errored/timed out, or the server returned an invalid response. Common causes: wrong credentials, IP banned, lease expired, provider downtime.

Can I check many SOCKS5 proxies at once?

Yes. Session limit is 5,000 lines, with up to 30 parallel connections. You can paste as text or drag-n-drop a .txt file into the input.

Do you keep my proxies?

No. Submitted proxies are processed in memory and never persisted to disk. Details in the privacy policy.

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