Proxy Checker
Paste one proxy or a list in any format. Each proxy is tested on every protocol at once, with real traffic.
Every protocol at once
You do not choose a protocol. Each proxy is tested as HTTP, HTTPS, SOCKS4 and SOCKS5 in parallel, because one port can speak several. Whatever carries real traffic is reported with speed, exit IP, country, ISP, anonymity level and blocklist status.
UDP, QUIC and HTTP/3 for real
SOCKS5 proxies get a genuine UDP relay test, DNS over UDP, a QUIC handshake and an HTTP/3 request. HTTP proxies are probed for UDP over HTTP (MASQUE). “Working” always means data came back.
Big lists, no waiting around
Up to 20,000 proxies per run in any mix of formats. Results appear in a live list while the check runs. Filter by protocol, speed or country, then download the working ones as TXT, CSV or JSON.
Frequently asked questions
Is it free?
Yes. No account, no key, no trial. Lists of up to 20,000 proxies are supported.
Which formats can I paste?
user:pass@host:port, host:port:user:pass, host:port, socks5://user:pass@host:port, http://user:pass@host:port and more, even mixed in one list. The format is detected automatically.
I wrote socks5:// — are other protocols still checked?
Yes. The prefix is only a hint. Every proxy is tested as HTTP, HTTPS, SOCKS4 and SOCKS5, and every protocol that works is shown.
What does “working” mean?
Real data went through the proxy and came back. An open port or a handshake alone is never enough.
Do you store my proxies or passwords?
No. They live in memory only while the check runs and are never written to disk or logs.