What is the main difference between Hazel and Mattermost?

Hazel and Mattermost are both team chat & messaging tools but differ in their approach, features, and target audience. Compare their GitHub stats, technology stack, and community adoption to make the best choice.

Which is better: Hazel or Mattermost?

The choice between Hazel and Mattermost depends on your specific needs, technical requirements, and team preferences. Both are quality open source solutions with active communities.

Can I migrate from Hazel to Mattermost?

Migration between Hazel and Mattermost is possible but requires careful planning. Consider data export/import capabilities, feature parity, and potential workflow changes.

Stellar Hosted – Managed Open Source software hosting in the EU: secure, compliant, fast.

Learn more

Hazel vs Mattermost

Learn how Hazel and Mattermost differ in their key features, development activity, technology stack and community adoption, so you can decide which of these team chat & messaging tools is best for you.

Hazel

Team chat for developers with threads, full-text search, keyboard-first navigation, GitHub and Linear previews, desktop apps, and message sync with Slack and Discord.

Visit Hazel Read more

738stars+12(+1.7%)

Last 30 days

Last commit
6 hours ago
Repository age
2 years
Version
v1.1.3
License
FSL-1.1-ALv2
Self-hosted
Yes
Repository
mapletechlabs/hazel

Mattermost

Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements.

Visit Mattermost Read more

39,613stars+259(+0.7%)

Last 30 days

Last commit
12 hours ago
Repository age
11 years
Version
v12.0.2
Self-hosted
Yes
Repository
mattermost

Detailed Comparison

Both Hazel and Mattermost have their unique strengths and serve similar purposes effectively. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.

Mattermost wins

Community & Popularity

Mattermost significantly outpaces Hazel in community adoption with 39,613 stars compared to 738 stars on GitHub. This 53.7x difference suggests Mattermost has a much larger and more active community. In terms of developer contributions, Mattermost has 9,111 forks, indicating strong developer engagement.

Hazel wins

Growth Momentum

Hazel is growing faster, adding 12 stars in the last 30 days (+1.7%) against adding 259 stars for Mattermost (+0.7%). Hazel is the smaller project of the two, so it is closing the gap rather than extending a lead.

Comparable

Development Activity

Both projects show recent activity, with Hazel last updated 6 hours ago and Mattermost 12 hours ago.

Comparable

Technology Stack

Both tools share common technology foundations, being built with JavaScript, CSS, Bash, Typescript, JSX. However, they differ in their additional technology choices: Hazel uses Rust, Kotlin, Tauri, Tanstack Start while Mattermost leverages Golang, SCSS.

Mattermost wins

Project Maturity

Mattermost has been in development longer, starting 11 years ago, compared to Hazel which began 2 years ago. This 10.0-year head start suggests Mattermost may have more mature features and established processes.

Hazel wins

Licensing

Hazel is licensed under FSL-1.1-ALv2, while Mattermost's license terms are not publicly specified.

Comparable

Use Cases & Features

Both tools serve similar use cases in Team Chat & Messaging. However, they also have distinct specializations: Mattermost extends into Collaborative Workspaces, Encrypted Communication.

Comparable