Slash Desktop — NCW-branded fork of mattermost/desktop (Apache-2.0). Phase 9.
  • TypeScript 70.3%
  • JavaScript 25.3%
  • SCSS 3.8%
  • Shell 0.5%
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Merge pull request 'fix: nsis/portable Windows targets silently overwrote each other' (#7) from fix/nsis-portable-filename-collision into slash/main
Reviewed-on: #7
2026-07-13 22:12:43 +00:00
.config/notice-file Support new notice-file-generator version (#3046) 2024-05-30 13:47:08 +02:00
.forgejo/workflows fix: nsis/portable Windows targets silently overwrote each other 2026-07-13 21:50:29 +00:00
.github Desktop: Quick fixes for docs label automation (#3791) (#3792) 2026-04-23 11:48:48 +03:00
.vscode Some further ESLint cleanup, remove some unnecessary scripts and lines (#2984) 2024-03-18 14:46:12 -04:00
api-types [MM-67909] Handle window.close() from the renderer process (#3725) 2026-03-23 14:09:38 +00:00
e2e feat(e2e): Migrate Desktop E2E to Playwright and add merged cross-OS reporting (#3728) 2026-03-25 14:26:49 +00:00
fastlane Add skip_waiting_for_build_processing to CI build (#2027) 2022-03-29 11:35:55 -04:00
i18n chore(brand): rebrand Mattermost Desktop -> Slash (task #2) 2026-07-06 23:59:13 -04:00
patches [MM-46859] Refactor RegistryConfig into policyConfigLoader, include macOS CFPref support (#3692) 2026-02-17 10:28:46 -05:00
resources [MM-46859] Refactor RegistryConfig into policyConfigLoader, include macOS CFPref support (#3692) 2026-02-17 10:28:46 -05:00
scripts fix: restore Linux's executableName -- productFilename broke it 2026-07-13 20:54:46 +00:00
src chore(brand): rebrand Mattermost Desktop -> Slash (task #2) 2026-07-06 23:59:13 -04:00
.editorconfig feat: Upgrade Reusable GitHub Actions version (#2989) 2024-03-22 14:03:24 +02:00
.eslintignore Move all E2E dependencies into its own folder, run from there (#3068) 2024-06-17 15:24:15 -04:00
.eslintrc.json feat(e2e): Migrate Desktop E2E to Playwright and add merged cross-OS reporting (#3728) 2026-03-25 14:26:49 +00:00
.esr Bump to version 6.2.0-rc.1 2026-04-17 05:19:37 +00:00
.gitignore feat(e2e): Migrate Desktop E2E to Playwright and add merged cross-OS reporting (#3728) 2026-03-25 14:26:49 +00:00
.gitlab-ci.yml Create makefile and pipeline to generate signed debian packages. (#2068) 2022-04-21 09:41:50 -04:00
.nvmrc add nvmrc (#3101) 2024-07-22 10:15:42 -04:00
AGENTS.md [MM-68874] Add validation on IPC endpoints where data is coming from the front-end (#3833) (#3837) 2026-06-03 11:28:29 -04:00
babel.config.js Some further ESLint cleanup, remove some unnecessary scripts and lines (#2984) 2024-03-18 14:46:12 -04:00
BRANDING_CHANGES.md chore(brand): rebrand Mattermost Desktop -> Slash (task #2) 2026-07-06 23:59:13 -04:00
CHANGELOG.md chore(brand): rebrand Mattermost Desktop -> Slash (task #2) 2026-07-06 23:59:13 -04:00
CONTRIBUTING.md MM-41988 Updated links to legacy domain about.mm.com (#2003) 2022-03-10 16:40:06 -05:00
electron-builder.ts fix: nsis/portable Windows targets silently overwrote each other 2026-07-13 21:50:29 +00:00
LICENSE.txt Change app author to Mattermost 2017-07-10 22:19:37 +09:00
Makefile Create makefile and pipeline to generate signed debian packages. (#2068) 2022-04-21 09:41:50 -04:00
NOTICE.txt chore: Update NOTICE.txt file with updated dependencies (#3706) 2026-02-23 17:20:47 -05:00
package-lock.json fix: afterpack.js still broken on Windows -- executableName doesn't exist on Packager 2026-07-13 20:14:08 +00:00
package.json chore(brand): rebrand Mattermost Desktop -> Slash (task #2) 2026-07-06 23:59:13 -04:00
README.md chore(brand): rebrand Mattermost Desktop -> Slash (task #2) 2026-07-06 23:59:13 -04:00
SECURITY.md MM-41988 Updated links to legacy domain about.mm.com (#2003) 2022-03-10 16:40:06 -05:00
TESTING.md [MM-14093] Rename 'team' to 'server' and 'tab' to 'view' in most cases, some additional cleanup (#2711) 2023-05-08 09:17:01 -04:00
tsconfig.json [MM-52696] Upgrade and clean up Desktop App dev dependencies (#2970) 2024-03-07 15:55:33 -05:00
webpack.config.base.js [MM-67027][MM-67028][MM-54413] Remove NSIS installer, replace auto update with in-app notifications (#3664) 2026-01-29 13:07:21 -05:00
webpack.config.main.js [MM-46859] Refactor RegistryConfig into policyConfigLoader, include macOS CFPref support (#3692) 2026-02-17 10:28:46 -05:00
webpack.config.preload.js [MM-64645][MM-64646][MM-64647][MM-64648][MM-64650][MM-64652][MM-61046] Multi-View Architecture (#3491) 2025-09-13 12:51:11 -04:00
webpack.config.renderer.js feat(e2e): Migrate Desktop E2E to Playwright and add merged cross-OS reporting (#3728) 2026-03-25 14:26:49 +00:00

NCW fork: this is slash-desktop, NCW's branded fork of mattermost/desktop (Apache-2.0), preconfigured for chat.ncwcom.com. See BRANDING_CHANGES.md for the delta; upstream README follows.

Mattermost Desktop

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle. This repo is for the native desktop application that's built on Electron; it runs on Windows, Mac, and Linux.

Originally created as "electron-mattermost" by Yuya Ochiai.

mm-desktop-screenshot

nightly-builds

Features

Desktop integration

  • Server dropdown for access to multiple servers
  • Dedicated tabs for Channels, Boards and Playbooks
  • Desktop Notifications
  • Badges for unread channels and mentions
  • Deep Linking to open Mattermost links directly in the app
  • Runs in background to reduce number of open windows

Usage

Installation

Detailed guides are available at docs.mattermost.com.

  1. Download a file from the downloads page or from the releases page.
  2. Run the installer or unzip the archive.
  3. Launch Mattermost from your Applications folder, menu, or the unarchived folder.
  4. On the first launch, please enter a name and URL for your Mattermost server. For example, https://mattermost.example.com.

Configuration

You can show the dialog from menu bar.

Configuration will be saved into Electron's userData directory:

  • %APPDATA%\Mattermost on Windows
  • ~/Library/Application Support/Mattermost on OS X
  • ~/.config/Mattermost on Linux

A custom data directory location can be specified with:

  • Mattermost.exe --args --data-dir C:\my-mattermost-data on Windows
  • open /Applications/Mattermost.app/ --args --data-dir ~/my-mattermost-data/ on macOS
  • ./mattermost-desktop --args --data-dir ~/my-mattermost-data/ on Linux

Custom App Deployments

Our docs provide a guide on how to customize and distribute your own Mattermost Desktop App, including how to distribute the official Windows Desktop App silently to end users, pre-configured with the server URL and other app settings.

Development and Making Contributions

Our developer guide has detailed information on how to set up your development environment, develop, and test changes to the Desktop App.