Rocket.Chat vs Slack: Complete Comparison (2026)
Updated: March 7, 20268 min read
VS
Quick Comparison
Rocket.Chat
Slack
Starting Price
$7/user/mo (cloud)
$7.25/user/mo
Free Plan
Yes
Yes
Users
25M+
32M+
Founded
2015
2013
Rating
4.2/5
4.5/5
Best For
Teams wanting open-source Slack alternative with s...
Teams needing organized async communication.
Feature-by-Feature Comparison
Rocket.ChatSlack
86Ease of Use92
88Features94
88Value for Money94
79Customer Support85
81Integrations87
82Mobile App88
AI Verdict
Slack leads with a ToolScout Score of 90 vs 84 for Rocket.Chat. Slack is best suited for Teams needing organized async communication, while Rocket.Chat excels for Teams wanting open-source Slack alternative with self-hosting. Both are strong options in the Team Communication space.
CHOOSE ROCKET.CHAT IF:
Teams wanting open-source Slack alternative with self-hosting.
CHOOSE SLACK IF:
Teams needing organized async communication.
Frequently Asked Questions
Is Rocket.Chat better than Slack?
Slack scores 90/100 on ToolScout compared to Rocket.Chat's 84/100. However, the best choice depends on your specific needs. Rocket.Chat is best for Teams wanting open-source Slack alternative with self-hosting. Slack is best for Teams needing organized async communication.
Does Rocket.Chat have a free plan?
Yes, Rocket.Chat offers a free plan. Paid plans start from $7/user/mo (cloud).
Does Slack have a free plan?
Yes, Slack offers a free plan. Paid plans start from $7.25/user/mo.
Can I migrate from Rocket.Chat to Slack?
Migration between Rocket.Chat and Slack depends on the specific features you use. Both tools are in the Team Communication category. Check each tool's import/export options for data portability before switching.