2 Best Free Alternatives to Slack

Looking for a Slack alternative? We've curated 2 free and open-source alternatives that offer similar communication capabilities. Compare features, pricing, and platforms to find the perfect replacement for your workflow.

Slack

Business communication platform for teams and organizations.

freemiumcommunicationcollaborationmessaging

Free Alternatives to Slack

Discord

Voice, video and text communication service for communities.

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License model

freemium

Application types

communication

Platforms

WebWindowsMacOSLinuxiOSAndroid

Properties

Gaming-focusedCommunity-orientedLow-latency voice

Features

Voice channelsText channelsScreen sharingBotsServer management

Tags

communicationgamingvoice-chat

Mattermost

Open-source, self-hostable online chat service.

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License model

freemiumopen-source

Application types

communication

Platforms

WebWindowsMacOSLinuxiOSAndroid

Properties

Open-sourceSelf-hostableEnterprise-ready

Features

Self-hostedEnd-to-end encryptionUnlimited message historyCustom integrations

Frequently Asked Questions

What are the best free alternatives to Slack?

The best free alternatives to Slack include Discord, Mattermost. Each offers unique features and pricing models to suit different needs.

Are there open-source alternatives to Slack?

Yes, several open-source alternatives exist, including Mattermost. Open-source options provide full transparency and community-driven development.

Which Slack alternative is completely free?

Most alternatives offer free tiers or freemium models with substantial free features.