Skip to content

Home AI tools NEW Alternatives Deals Guides

Top 100 AI GitHub activity AI categories AI Compare Saved AI tools Learn about AI Categories Collections Newly added Underrated this week Technology stacks Tags Licenses Compare tools About AltStack Advertise

.nav-explore{display:none}

Explore

Top 100 AI GitHub activity AI categories AI Compare Saved AI tools Learn about AI Categories Collections Newly added Underrated this week Technology stacks Tags Licenses Compare tools About AltStack Advertise

Loading this page…

Find free alternatives to paid software.
Created by Sushil Kumar Sah.

Browse

Tools AI tools Alternatives Top 100 AI GitHub activity AI categories Learn about AI Categories Tech stacks Tags Licenses Deals & trials

Collections

Newly added Underrated this week Trending Self-hosted AI tools Coming soon

Resources

Blog & guides AI resources About AltStack Submit a tool Advertise Become a sponsor

Your toolkit

Saved open software Saved AI tools Compare open software Compare AI tools Download catalog Contact Privacy

© 2026 Sushil Kumar Sah. All rights reserved.Compare free and paid software.

gonic’s Go gopher artwork by Renee French · CC BY 4.0 · Image credits.

Popular alternativesChatGPT Claude Claude Code Cursor GitHub Copilot Notion Figma Canva Photoshop Slack Airtable Zapier Google Analytics Vercel Firebase Dropbox

Team Chat & Messaging Tools

Mezon

Create custom spaces to chat, game, and connect globally.

Pricing not verified

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

Visit website Source repository

2.0kRepository stars

60Forks

MITLicense

3d agoLast commit

Mezon product interface — Mezon · official product interface

About Mezon

Create custom spaces to chat, game, and connect globally. Visit the project website to check the currently available deployment options.

Installation and setup

Follow the publisher’s current installation or quickstart guide for the edition and device you want to use. Tool-specific installation steps have not yet been checked by AltStack.

Open the official website or source repository below.
Check its supported devices and installation requirements, along with the pricing shown on this page.
Follow the provider’s instructions, then try a small non-sensitive sample before using important files.

Open the official project Source repository

Explore the project

Team Chat & Messaging Tools

Technology stack

Technologies recorded in the catalog snapshot.

Github Actions JavaScript NodeJS CSS Bash Typescript Eslint JSX Prettier React Tailwind GitHub Vite Testing Library Jest SCSS React Router DOM Sentry C Babel Objective-C Yarn Tiptap Java Swift Ruby Electron Kotlin SWC Bundler MATLAB Google NX rubyenv Firebase Google Analytics

Tags

chat communication chat-application bot-framework community

Alternative to

Microsoft Teams

Project details

License MIT

Hosting Check project website

Status Listed

Data checked 11 Oct 2026

Know a better alternative?

Help Sushil make the directory more useful.

Submit a project Report a correction

Related projects

Rocket.Chat product interface

Rocket.Chat

Team Chat & Messaging Tools

Pricing not verified

Self-hosted team messaging with voice, video, and AI.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

46kstars+ 14430 daysMIT

USE INSTEAD OF

Microsoft Teams

Mattermost product interface

Mattermost

Team Chat & Messaging Tools

Pricing not verified

Secure collaboration platform for mission-critical work.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

39kstars+ 27530 daysUnknown

USE INSTEAD OF

Microsoft Teams

Buzz product interface

Buzz

Team Chat & Messaging Tools

Pricing not verified

Team chat, project management, and AI agents in one place.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

36kstars+ 3.3k30 daysApache-2.0

USE INSTEAD OF

Microsoft Teams

Zulip product interface

Zulip

Team Chat & Messaging Tools

Pricing not verified

Organized team chat for distributed teams.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

26kstars+ 14930 daysApache-2.0

USE INSTEAD OF

Microsoft Teams

Element product interface

Element

Team Chat & Messaging Tools

Pricing not verified

Secure, decentralized messaging for teams and individuals.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

14kstars+ 10630 daysAGPL-3.0

USE INSTEAD OF

Microsoft Teams

Fluxer product interface

Fluxer

Team Chat & Messaging Tools

Pricing not verified

Open source messaging with privacy and community focus.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

11kstars+ 29930 daysAGPL-3.0

USE INSTEAD OF