Alternatives to Slack
Short version: the right replacement depends entirely on why you are leaving. Slack costs ~$8.75/user/mo, and the three reasons people leave it are price, complexity, and needing a different category of tool altogether. Those lead to three different answers.
Why people leave Slack
Start here. Picking a replacement before naming the problem is how people end up switching twice.
- The 90-day free limit. The single biggest cost driver. Free Slack quietly destroys your institutional memory.
- Cost at scale. Per-seat pricing across a whole company adds up faster than teams expect.
- Interruption. A cultural problem more than a product one, but the product does little to help.
The realistic alternatives, by switching reason
| Tool | From | Why it works | Switch if |
|---|---|---|---|
| Microsoft Teams | ~$6/user/mo | Included with Microsoft 365, so most organisations already pay for it. | Cost — you already have it |
| Basecamp | ~$15/user/mo | Message boards and structured discussion instead of endless real-time chat. | Chat is the problem |
| Notion | ~$12/user/mo | Async documentation rather than conversation, if the issue is interruption. | You need async, not chat |
Prices are entry paid tiers, checked August 2026. Confirm current pricing with the vendor.
What each one actually gives you
Microsoft Teams
Included with Microsoft 365, so most organisations already pay for it.
From ~$6/user/mo. Free version available; most organisations get Teams bundled with Microsoft 365.
Basecamp
Message boards and structured discussion instead of endless real-time chat.
From ~$15/user/mo. No permanent free plan; a free trial is offered.
Notion
Async documentation rather than conversation, if the issue is interruption.
From ~$12/user/mo. Free plan: unlimited pages for personal use, 7-day page history, limited guests.
When you should not replace Slack
Switching has a real cost: migration, retraining, and the weeks where nobody can find anything. If the reasons below still apply to you, staying is the cheaper decision.
- The best-in-class integration ecosystem — almost everything connects to it.
- Search is excellent once you have full history, which is the main reason to pay.
- Channel model scales better than group chat for organisations with many parallel workstreams.
The most expensive mistake here is replacing one tool you use fully with another you will use partly. If you genuinely use most of what Slack does, price alone is a weak reason to move.
What you would pay instead
How to actually make the switch
- Write down the two or three things you use weekly. Not everything the tool can do — what you actually open it for.
- Check those against the free tier of the alternative before paying for anything.
- Export your data first. Do this while the old subscription is still active; access usually ends the day you cancel.
- Run both in parallel for one cycle — a sprint, a month, a reporting period — before cancelling.
- Cancel only once the new tool has survived a real deadline, not a quiet week.
Try them yourself
Pricing and free tiers change often — check the current plans directly before deciding.
Disclosure: some links are affiliate links and we may earn a commission at no cost to you. It never changes what we recommend — several tools here pay us nothing. How we make money.
Frequently asked questions
What is the best alternative to Slack?
Microsoft Teams for most people — included with Microsoft 365, so most organisations already pay for it. But the honest answer depends on why you are leaving: cost — you already have it points to Microsoft Teams; chat is the problem points to Basecamp; you need async, not chat points to Notion.
Is there a free alternative to Slack?
Microsoft Teams: Free version available; most organisations get Teams bundled with Microsoft 365. Basecamp: No permanent free plan; a free trial is offered.
How much does Slack cost?
Checked August 2026: Free at $0; Pro at ~$8.75/user/mo; Business+ at ~$15/user/mo; Enterprise Grid at Custom. Confirm current pricing on the vendor's site.
Should I switch away from Slack?
Only if you can name the specific problem. Your organisation already pays for Microsoft 365 — Teams is included, and paying twice is hard to justify. If none of that describes you, staying is usually cheaper than migrating.