# Nchan

Pub/sub server module for Nginx that delivers published messages to WebSocket, EventSource and other HTTP-based subscribers.


Source: https://findsoftware.frbit.cloud/nchan/
Last reviewed: 2026-11-03
Listed since: 2026-11-03

## Record

### Links

- home: https://nchan.io
- repository: https://github.com/slact/nchan
- docs: https://nchan.io

### Identity

- status: active
- maintainer: Leo Ponomarev
- maintainerType: individual
- parent: unknown
- firstRelease: 2009
- hqCountry: unknown

### Kind

- category: backend
- hosting: binary
- language: c
- runtime: binary
- runtimeMin: unknown
- basedOn: nginx

### Content

- contentStore: unknown
- databases: unknown
- adminUi: unknown
- headlessApi: rest
- templating: unknown
- i18n: unknown

### Rendering and deploy

- runsAs: always-on
- renderingModes: unknown
- installMethod: source-build

### License

- licenseModel: open-source
- license: MIT

### Releases

- currentMajor: 1
- latestReleaseDate: 2026-02-14

### Adoption

- githubStargazers: 3063
- packagistDownloads: not applicable
- npmWeeklyDownloads: not applicable
- contributors: 35
- pluginCount: unknown
- packagistMonthlyDownloads: unknown
- ecosystemsMonthlyDownloads: unknown
- httpArchiveSites: unknown
- wordpressActiveInstalls: unknown
- dependentRepos: unknown
- dependentPackages: unknown

### Sources

- urls: https://nchan.io (read 2026-11-03)
- urls: https://github.com/slact/nchan (read 2026-11-03)
- urls: https://nchan.io (read 2026-11-03)
- maintainer: https://github.com/slact/nchan/blob/master/LICENCE (read 2026-11-03)
- maintainerType: https://github.com/slact/nchan/blob/master/LICENCE (read 2026-11-03)
- language: https://github.com/slact/nchan (read 2026-11-03)
- category: https://nchan.io (read 2026-11-03)
- basedOn: https://nchan.io (read 2026-11-03)
- runtime: https://nchan.io (read 2026-11-03)
- runsAs: https://nchan.io (read 2026-11-03)
- installMethod: https://nchan.io (read 2026-11-03)
- installMethod: https://nchan.io (read 2026-11-03)
- installMethod: https://nchan.io (read 2026-11-03)
- installMethod: https://nchan.io (read 2026-11-03)
- installMethod: https://nchan.io (read 2026-11-03)
- installMethod: https://nchan.io (read 2026-11-03)
- license: https://github.com/slact/nchan/blob/master/LICENCE (read 2026-11-03)
- licenseModel: https://github.com/slact/nchan/blob/master/LICENCE (read 2026-11-03)
- githubStargazers: https://github.com/slact/nchan (read 2026-11-03)
- contributors: https://github.com/slact/nchan (read 2026-11-03)
- currentMajor: https://github.com/slact/nchan/tags (read 2026-11-03)
- latestReleaseDate: https://nchan.io (read 2026-11-03)
- firstRelease: https://github.com/slact/nchan/tags (read 2026-11-03)
- headlessApi: https://nchan.io (read 2026-11-03)

## Notes

Nchan is a pub/sub server module for Nginx. Publishers send messages to a channel with HTTP POST requests, and subscribers receive them over WebSocket, EventSource (Server-Sent Events), long-polling and other HTTP-based methods. It is written in C and runs inside Nginx, with connections handled by the Nginx worker processes. The project documents a source build and packages for Homebrew, Debian, Fedora and Arch Linux.

## Worth knowing

Because Nchan is an Nginx module, a site that uses it runs it on an Nginx build that loads the module. The first version was written in 2009 and 2010 as the Nginx HTTP Push Module.

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Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Attributes are recorded, never scored; absent means unknown.
Credit, in full: FindSoftware, CC BY 4.0