igrigorik/em-websocket
EventMachine based WebSocket server observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 6100
- days_rel: n/a
- days_push: 1756
- n_releases_24m: 0
Adoption not part of the score
1689 stars · 188 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
em-websocket is an async WebSocket server library for Ruby built on EventMachine. It supports all WebSocket protocol drafts in use (75, 76, 1-17, RFC 6455) with ping/pong, close codes, and healthcheck endpoints.
Use cases
- build a websocket server in ruby
- push real-time messages to browsers
- handle bidirectional client-server communication over websockets
- add live updates to a ruby app
- implement a chat or notification server
- run websockets inside an eventmachine reactor
When to choose
- you are already using EventMachine in a Ruby app
- you need broad legacy WebSocket draft compatibility
- you want a lightweight, minimal Ruby WebSocket server
When to avoid
- you use modern async Ruby (Async gem) or non-EventMachine stacks
- you need a full-featured framework with channels/pubsub built in
- the project appears to be in maintenance with the last release in 2021
Facets
library · maturity maintenance
websocket http-server networking web-development backend apis ruby cross-platform eventmachine async websocket-server real-time-messaging real-time
3 sources
- readme: https://github.com/igrigorik/em-websocket · fetched 2026-08-28 · 20df4a659dcd
- homepage: http://www.igvita.com/2009/12/22/ruby-websockets-tcp-for-the-browser/ · fetched 2026-08-29 · 559b57f3ff5d
- site_page: https://www.igvita.com/ · fetched 2026-08-29 · 461eab8cd7b0
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| igrigorik/em-websocket | main | 32 |
For agents
markdown · JSON · MCP: product_card(name="igrigorik/em-websocket")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem