New

Superstars Program

Become a top community advocate and be recognized as a Mattermost Superstar.
Contribute
Platform Development

Join hundreds of others who have contributed code to Mattermost repositories in GitHub.
Contribute Collapse
- 1
  
  Sign up to our Mattermost site
  
  Go to https://community.mattermost.com and join the Contributors channel to ask questions.
- 2
  
  Set up your developer environment
  
  Follow our instructions for setting up a developer machine. If you’re working on the mobile apps, you’ll also need a mobile dev environment.
- 3
  
  Choose a ticket
  
  Select a ticket and comment to let people know you’re working on it. If there’s no ticket for what you want to work on, follow the process here.
- 4
  
  Start developing
  
  Check out our developer flow for tips on working with the Mattermost codebase. When your changes are ready, run through our checklist for pull requests. Note that if it’s your first contribution, there is a standard CLA to sign.
Mobile Development

Build mobile applications on Android and iOS with React Native.
Contribute Collapse
- 1
  
  Sign up to our Mattermost site
  
  Go to https://community.mattermost.com and join the Developers: Mobile channel to ask questions.
- 2
  
  Set up your developer environment
  
  Follow our instructions for setting up a developer machine along with a mobile dev environment.
- 3
  
  Choose a ticket
  
  Select a ticket and comment to let people know you’re working on it. If there’s no ticket for what you want to work on, follow the process here.
- 4
  
  Start developing
  
  When your changes are ready, run through our checklist for pull requests. Note that if it’s your first contribution, there is a standard CLA to sign.
Desktop Development

Help build a multi-platform desktop client for Windows, Mac and Linux with Electron.
Contribute Collapse
- 1
  
  Sign up to our Mattermost site
  
  Go to https://community.mattermost.com and join the Desktop channel to ask questions.
- 2
  
  Set up your developer environment
  
  Follow our instructions for setting up a developer machine.
- 3
  
  Choose a ticket
  
  Select a ticket and comment to let people know you’re working on it. If there’s no ticket for what you want to work on, follow the process here.
- 4
  
  Start developing
  
  When your changes are ready, run through our checklist for pull requests. Note that if it’s your first contribution, there is a standard CLA to sign.
Webapp Development

Join a community of hundreds of frontend React developers.
Contribute Collapse
- 1
  
  Sign up to our Mattermost site
  
  Go to https://community.mattermost.com and join the Contributors channel to ask questions.
- 2
  
  Set up your developer environment
  
  Follow our instructions for setting up a developer machine.
- 3
  
  Choose a ticket
  
  Select a ticket and comment to let people know you’re working on it. If there’s no ticket for what you want to work on, follow the process here.
- 4
  
  Start developing
  
  Check out our developer flow for tips on working with the Mattermost codebase. When your changes are ready, run through our checklist for pull requests. Note that if it’s your first contribution, there is a standard CLA to sign.
Integration Development

Build apps and integrations to connect to your favorite tools.
Contribute Collapse
- 1
  
  Sign up to our Mattermost site
  
  Go to https://community.mattermost.com and join the Developer Toolkit channel to ask questions.
- 2
  
  Choose an integration type
  
  Visit the Apps and Integrations for a current list of open source integrations and projects to get ideas on how to get started.
- 3
  
  Start developing
  
  Read our integrations guide for tips on how to integrate with the Mattermost server.
- 4
  
  Share your integration
  
  Built something for Mattermost? We want to hear about it! Let us know here.
Localization Process

Translate Mattermost into a new language or help maintain an existing one.
Contribute Collapse
- 1
  
  Sign up to our Mattermost site
  
  Go to https://community.mattermost.com and join the Localization channel to ask questions.
- 2
  
  Sign up to our translation server
  
  Go to https://translate.mattermost.com/ and sign up.
- 3
  Choose a language
  
  Confirm that the language you want to help translate is listed in the Translation server.
  
  If it is, perhaps offer to help translate or review and make suggestions.
  
  If it’s not, go to https://community.mattermost.com and ask to set up your language on the Localization channel, so you can start helping with the translation.
- 4
  
  Start translating
  
  Read our Localization documentation for more information on translations rules and maintenance process.
Documentation Process

Write software and troubleshooting documentation used by thousands across the world.
Contribute Collapse
- 1
  
  Sign up to our Mattermost site
  
  Go to https://community.mattermost.com and join the Documentation channel to ask questions.
- 2
  
  Choose a ticket
  
  To edit Mattermost documentation, choose a ticket and add a comment to let people know you’re working on it. See process for contributing.
- 3
  
  Start writing
  
  Review our documentation guidelines for tips on how to create effective docs. Note that if it is your first pull request, you will be asked to sign a standard CLA.
Improve Mattermost

Report bugs, suggest features, and share feedback.
Contribute Collapse
Report Bugs:
Expand Collapse
1

Sign up to our Mattermost site

Go to https://community.mattermost.com and join the Bugs channel to ask questions.

2

Open a new issue

Go to https://github.com/mattermost and open a new issue in the relevant repository. Read our docs on steps for filing bugs.
Test and Find Issues:
Expand Collapse
1

Sign up to our Mattermost site

Go to https://community.mattermost.com and join the Bugs channel to ask questions.

2

Use Mattermost test server

Go to our community test server or any of the open source code bases maintained by Mattermost to test and find issues.

3

Open a new issue

If you find a bug, go to https://github.com/mattermost and open a new issue in the relevant repository. Read our docs on steps for filing bugs.
Troubleshoot Issues:
Expand Collapse
1

Sign up to our Mattermost site

Go to https://community.mattermost.com and join the Bugs channel and Peer-to-Peer Help channel to answer questions.

2

Use Mattermost Forums and repos

Follow questions in Mattermost Forums and Github Issues to help others.
Suggest New Features:
Expand Collapse
1

Sign up to our Mattermost site

Go to https://community.mattermost.com and join the Feature Proposals channel to ask questions.

2

Use Mattermost Uservoice

Use Uservoice to propose new features. Read our docs on steps for contributing feature proposals.
Share Feedback:
Expand Collapse
1

Sign up to our Mattermost site

Go to https://community.mattermost.com and join the Peer-to-Peer Help channel to ask questions.

2

Use Mattermost Peer-to-Peer Forum

Use the Peer-to-Peer Forum to share feedback about Mattermost.
Security Issue Reporting

Report security issues by following the Responsible Disclosure Policy.
Contribute Collapse
- 1
  
  Report a security issue
  
  Read our process for reporting a security vulnerability.
- 2
  
  Follow updates
  
  14 days after the security issue that you reported has been resolved, the security bug fix is posted on our Security Updates page and you are added to our Security Research Hall of Fame.

Contribute to Mattermost

Learn about all the ways to get involved with our community

Superstars Program

Platform Development

Sign up to our Mattermost site

Set up your developer environment

Choose a ticket

Start developing

Mobile Development

Sign up to our Mattermost site

Set up your developer environment

Choose a ticket

Start developing

Desktop Development

Sign up to our Mattermost site

Set up your developer environment

Choose a ticket

Start developing

Webapp Development

Sign up to our Mattermost site

Set up your developer environment

Choose a ticket

Start developing

Integration Development

Sign up to our Mattermost site

Choose an integration type

Start developing

Share your integration

Localization Process

Sign up to our Mattermost site

Sign up to our translation server

Choose a language

Start translating

Documentation Process

Sign up to our Mattermost site

Choose a ticket

Start writing

Improve Mattermost

Report Bugs:

Sign up to our Mattermost site

Open a new issue

Test and Find Issues:

Sign up to our Mattermost site

Use Mattermost test server

Open a new issue

Troubleshoot Issues:

Sign up to our Mattermost site

Use Mattermost Forums and repos

Suggest New Features:

Sign up to our Mattermost site

Use Mattermost Uservoice

Share Feedback:

Sign up to our Mattermost site

Use Mattermost Peer-to-Peer Forum

Security Issue Reporting

Report a security issue

Follow updates

Give your team the tools they’ve been waiting for