slash-server

Mattermost server fork — Slash branded, license checks removed

agpl chat fork mattermost

TypeScript 47.1%
Go 41.4%
JavaScript 6.1%
SCSS 2.7%
HTML 2.3%
Other 0.3%

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mohlec 8e6d928759 All checks were successful Build Slash Server Binary / branding-audit (push) Successful in 34s Details Build Slash Webapp / branding-audit (push) Successful in 35s Details Build Slash Server Binary / build-server (push) Successful in 1m2s Details Build Slash Webapp / build-webapp (push) Successful in 6m32s Details Merge pull request 'Disable the Mattermost Enterprise trial upsell modal' (#13 ) from fix/disable-trial-upsell-modal into slash/main Reviewed-on: #13		2026-07-10 16:15:54 +00:00
.agents/skills/agent-browser	Add agent-browser skill and update cloud agent docs (#35534 )	2026-03-09 11:13:00 -04:00
.forgejo/workflows	ci: remove redundant upload-artifact step from build.yml	2026-07-07 16:50:05 +00:00
.github	chore(ci): allow build-server-image to build and push from release branches (#36716 ) (#36718 )	2026-05-22 19:18:09 +00:00
api	Replace remaining Mattermost logo assets with Slash branding	2026-07-07 15:15:25 +00:00
e2e-tests	Bound document content extraction time and decouple it from uploads (MM-69098) (#36856 ) (#37041 )	2026-06-15 08:35:17 +02:00
scripts	Phase 4: finish branding — footer copyright, tab title, PWA name	2026-06-30 18:42:16 +00:00
server	Merge remote-tracking branch 'mmupstream/release-11.7' into merge/upstream-2026-06-30	2026-06-30 20:07:40 +00:00
tools	Deleted removed post from content flagging redux store (#36803 ) (#36848 )	2026-06-04 11:24:06 +02:00
webapp	Disable the Mattermost Enterprise trial upsell modal	2026-07-10 16:09:48 +00:00
.editorconfig	Move .editorconfig to repo root (#24398 )	2023-08-30 16:29:07 -04:00
.gitignore	Add manage_own_agent and manage_others_agent permissions (#35924 )	2026-04-15 14:57:46 +00:00
.gitpod.yml	Add .gitpod.yml to use mattermost-gitpod-config repo for Gitpod configuration (#19984 )	2022-04-14 11:02:50 -04:00
.nvmrc	MM-66972 Upgrade to node 24 and main dependencies with babel, webpack and jest (#34760 )	2026-01-14 13:14:01 +08:00
AGENTS.CLOUD.md	updated go to version 1.25.8 (#35817 )	2026-03-27 21:11:52 +01:00
BRANDING_CHANGES.md	Replace remaining Mattermost logo assets with Slash branding	2026-07-07 15:15:25 +00:00
CHANGELOG.md	Changelog link (#8805 )	2018-05-30 10:23:25 -04:00
CODEOWNERS	simplify CODEOWNERS (#35770 )	2026-04-01 13:03:36 +00:00
CONTRIBUTING.md	update CONTRIBUTING.md and github ISSUE_TEMPLATE (#30862 )	2025-04-29 15:42:40 +03:00
DIVERGENCE.md	Add DIVERGENCE.md — living upstream-divergence tracking doc	2026-07-04 11:23:20 +00:00
enable-claude-docs.sh	Add optional Claude.md orchestration for Webapp folder (#34668 )	2026-01-14 13:04:20 -05:00
LICENSE.enterprise	Source available metrics (#24879 )	2024-01-08 10:47:24 -04:00
LICENSE.txt	Update LICENSE.txt to reflect new paths (#28241 )	2024-10-01 09:47:09 -03:00
NOTICE.txt	chore: Update NOTICE.txt file with updated dependencies (#35158 )	2026-02-02 13:23:28 +02:00
README.md	Update README first line to match new use cases (#31247 )	2025-05-30 19:28:37 +00:00
SECURITY.md	MM-41988 Updated links to legacy domain about.mm.com (#19552 )	2022-03-16 19:47:57 +08:00
skills-lock.json	Add agent-browser skill and update cloud agent docs (#35534 )	2026-03-09 11:13:00 -04:00

README.md

Mattermost is an open core, self-hosted collaboration platform that offers chat, workflow automation, voice calling, screen sharing, and AI integration. This repo is the primary source for core development on the Mattermost platform; it's written in Go and React, runs as a single Linux binary, and relies on PostgreSQL. A new compiled version is released under an MIT license every month on the 16th.

Deploy Mattermost on-premises, or try it for free in the cloud.

Learn more about the following use cases with Mattermost:

Other useful resources:

Download and Install Mattermost - Install, setup, and configure your own Mattermost instance.
Product documentation - Learn how to run a Mattermost instance and take advantage of all the features.
Developer documentation - Contribute code to Mattermost or build an integration via APIs, Webhooks, slash commands, Apps, and plugins.

Install Mattermost
Native mobile and desktop apps
Get security bulletins
Get involved
Learn more
License
Get the latest news
Contributing

Install Mattermost

Download and Install Mattermost Self-Hosted - Deploy a Mattermost Self-hosted instance in minutes via Docker, Ubuntu, or tar.
Get started in the cloud to try Mattermost today.
Developer machine setup - Follow this guide if you want to write code for Mattermost.

Other install guides:

Native mobile and desktop apps

In addition to the web interface, you can also download Mattermost clients for Android, iOS, Windows PC, macOS, and Linux.

Get security bulletins

Receive notifications of critical security updates. The sophistication of online attackers is perpetually increasing. If you're deploying Mattermost it's highly recommended you subscribe to the Mattermost Security Bulletin mailing list for updates on critical security releases.

Subscribe here

Get involved

Learn more

License

See the LICENSE file for license rights and limitations.

Get the latest news

X - Follow Mattermost on X, formerly Twitter.
Blog - Get the latest updates from the Mattermost blog.
Facebook - Follow Mattermost on Facebook.
LinkedIn - Follow Mattermost on LinkedIn.
Email - Subscribe to our newsletter (1 or 2 per month).
Mattermost - Join the ~contributors channel on the Mattermost Community Server.
IRC - Join the #matterbridge channel on Freenode (thanks to matterircd).
YouTube - Subscribe to Mattermost.

Contributing

Please see CONTRIBUTING.md. Join the Mattermost Contributors server to join community discussions about contributions, development, and more.