Quick Answer
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Slack costs Free to $18 per user/month as of November 2026, with 4 plans available including a free tier. Plans: Free (free), Pro at $8.75/user/month, and Business+ at $18/user/month. Custom pricing is available on request. Pricing depends on your chosen tier, contract length, and negotiated discounts.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: Yes

Slack offers 4 pricing tiers: Free, Pro, Business+, Enterprise+. A free plan is available. Paid plans include Pro at $8.75/user/month, Business+ at $18/user/month. The Pro plan is growing teams that need full message history.

Last verified: | Sources: 1 pricing pages and reviews
Forever Free plan type

Yes, Slack offers a forever free plan as of November 2026. The free tier lists 6 features. Limits apply to users and messagehistory. Paid plans start at $8.75/user/month (Pro). Pricing verified from 1 sources by CostBench.

Forever Free

Slack's free plan is available indefinitely with no time limit.

What's Included in the Free Plan

  • 90 days of message history
  • Up to 10 app integrations
  • 1:1 audio and video calls
  • Slack Connect for external messaging
  • Basic AI features
  • 5 GB total file storage
Start Free at Slack

What's NOT Included (Paid Only)

  • Unlimited message history
  • Unlimited app integrations
  • Group audio and video calls
  • SAML-based SSO
  • 10 GB file storage per user
  • Basic AI features included

Free Plan Limits

Limit Free Plan
Users Unlimited
MessageHistory 90 days
Integrations 10
Storage 5GB total
VideoCalls 1:1 only
  • – 90-day message history limit
  • – Only 10 app integrations
  • – 5GB total storage
  • – No group video calls
  • – No Slack Connect for external orgs
  • – No screen sharing in huddles
  • – No SSO
  • – No data exports

You'll Need to Upgrade When...

  • You need to access messages older than 90 days
  • You want more than 10 app integrations
  • You need group video calls (huddles)
  • You want to collaborate with external organizations
  • You need more than 5GB storage

Hidden Restrictions on Free Plan

  • ! Messages older than 90 days are hidden (not deleted), accessible if you upgrade
  • ! Cannot customize retention policies
  • ! No guest access management
  • ! Limited search functionality
  • ! No compliance exports

Free vs Paid: Which Do You Need?

Free Plan is Enough If...

You're a small team with short-term communication needs, don't rely heavily on message history, and use fewer than 10 integrations.

Free vs Pro Plan Comparison

Free $0
Best For Small teams getting started Growing teams that need full message history

Frequently Asked Questions

01 Is Slack free?

Yes, Slack offers a forever free plan. It includes 90 days of message history, up to 10 app integrations, 1:1 audio and video calls, and more. Key limits: Users: Unlimited, MessageHistory: 90 days, Integrations: 10.

02 What's included in Slack's free plan?

Slack's free plan includes: 90 days of message history, Up to 10 app integrations, 1:1 audio and video calls, Slack Connect for external messaging, Basic AI features, and 1 more features. Key limits: Users: Unlimited, MessageHistory: 90 days, Integrations: 10.

03 What's NOT included in Slack's free plan?

Paid-only: Unlimited message history, Unlimited app integrations, Group audio and video calls, SAML-based SSO, 10 GB file storage per user. Free plan limitations: 90-day message history limit; only 10 app integrations; 5GB total storage.

04 When should I upgrade from Slack's free plan?

Consider upgrading when: you need to access messages older than 90 days; you want more than 10 app integrations; you need group video calls (huddles). The cheapest paid plan starts at $8.75/user/month.

05 Is Slack's free plan really free forever?

Yes, Slack's free plan is available indefinitely with no time limit. However, feature and usage limits may restrict what you can do without upgrading to a paid plan.

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