63,237
stars
+3
10,230
forks
1,474
watchers
977
prs
3,670
issues
104
releases
808
discussions
README
socket.io Getting Started Please check our documentation here. Questions Our issues list is exclusively reserved for bug reports and feature requests. For usage questions, please use the following resources: - read our documentation - check our troubleshooting guide - look for/ask questions on Stack Overflow - create a new discussion Security If you think that you have found a security vulnerability in our project, please do not create an issue in this GitHub repository, but rather refer to our Security Policy. Issues and contribution Please make sure to read our Contributing Guide before creating an issue or making a pull request. Thanks to everyone who has already contributed to Socket.IO! License MIT
Top issues
#5282Connection State Recovery fails for long-lived connections21 comments · 2025-01-23#5197socket.io-client 4.8.0 automatic reconnect is not working21 comments · 2024-09-24#5117Socket.io client keeps disconnecting and reconnecting at a fixed interval because of ping timeout20 comments · 2023-05-25#5511Official documentation can't open19 comments · 2026-06-11#4891Socket Disconnection issue on Specific Mobile Network on JIO 5g network in INDIA16 comments · 2023-12-07#4881Getting HTTP error 40015 comments · 2023-11-27#3242Socket.io for golang14 comments · 2018-05-08#4052Not working with flutter socket.io-client since version 314 comments · 2021-08-10
Discussions
#5572ws-tap: watch live Socket.IO traffic in a second terminal (middleware + viewer, secrets redacted)0 comments · 2026-10-12#5562API doc sites should have copy as markdown feature, so we can feed prompts to AI.1 comments · 2026-09-24#5532socket.io website is down with err_connection_timeout1 comments · 2026-08-11#5520Old demo revival0 comments · 2026-07-02#5515Documentation1 comments · 2026-06-16#5510Website is down!!!1 comments · 2026-06-10#5486Simulating real-time with socket io1 comments · 2026-04-04#5477Connection timeout IO v4.8.11 comments · 2026-03-19
Latest release
[email protected] [email protected] 2026-09-25Bug Fixes cleanup pending acks on timeout to prevent memory leak (37aad11) prevent uWebSockets.js from serving missing client files (dfb5ab3) reject stateful regexps for dynamic namespaces (59f4f24) types: allow emitWithAck() for events with void callbacks (5453) (8b93a18) types: properly import http module (74599a6) Dependencies - engine.io@~6.6.0 (no change) - ws@~8.21.0 (diff)