The limitations and considerations around your Slack Free plans, and whether to upgrade your organization or community.
Slack markets its free tier as a great way for small teams to start communicating. And it is—until you realize you're losing access to valuable conversations every 90 days. What starts as a "free" collaboration tool can quickly become a source of frustration when critical information disappears or team members hit storage limits.
This guide breaks down the real limitations of Slack's free plan, what you're actually giving up, and practical workarounds to preserve your team's history without breaking the bank. If you're a smaller team or startup that's outgrowing Slack's free tier, read on.
Last updated: January 2026
Slack's free plan includes:
These limitations make sense for Slack's business model—they want you to upgrade. But they can create serious workflow disruptions if you're not prepared.
Free Slack users can only search and view messages from the last 90 days. After that, conversations disappear from your workspace. This means:
For compliance, legal, or HR purposes, this is a nightmare. If you need to reference a conversation from four months ago—whether it's a client discussion, an internal policy decision, or evidence for a workplace issue—it's gone.
Important: Messages aren't just hidden after 90 days—any content older than 1 year is permanently deleted from Slack's servers. This is a critical detail many teams miss.
The free tier caps file storage at 5 GB—shared across all users. That might sound like enough, but:
Once you hit the limit, Slack doesn't delete files automatically, but new uploads fail. You'll need to manually delete old files to make room, which is tedious and risky (you might delete something important).
Workaround: Store files externally (Google Drive, Dropbox) and share links in Slack instead of uploading directly. But this adds friction—people won't always follow the process.
If your team relies on integrations to streamline workflows—calendar apps, project management tools, customer support platforms—you'll quickly hit the 10-app ceiling. Slack forces you to choose which tools matter most, which can fragment your workflow across platforms.
Common culprits that eat up your limit:
There's no clean workaround here. If you need more than 10 integrations, you'll need to upgrade or accept that some tools won't connect to Slack.
Slack's free plan allows one-on-one video and audio calls, but if you need to bring a third person into the conversation, you're out of luck. You'll need to jump to Zoom, Google Meet, or another platform—adding yet another tool to your stack.
For distributed or remote teams, this becomes a frequent annoyance.
Free plan users get community support only—no access to Slack's official support team. If something breaks, you're Googling solutions or hoping someone in the Slack Community has an answer.
This isn't a dealbreaker for most small teams, but if you rely on Slack heavily and need fast resolutions, it's worth noting.
Understanding the true cost of upgrading helps you make an informed decision. Here's what Slack Pro costs for different team sizes (annual billing):
For teams primarily concerned about losing message history (not needing unlimited integrations or group calls), ViewExport offers a more affordable alternative:
You keep using Slack Free for daily communication, but export and store your history in ViewExport for long-term searchability.
Slack Pro costs $7.25/user/month (billed annually). Here's when upgrading makes sense:
Avoid these traps that catch teams off guard:
Many teams don't realize messages disappear until it's too late. By day 91, important context is already gone. Solution: Set up monthly exports starting on day 1.
The 90-day limit gets all the attention, but the 1-year permanent deletion is the real killer. After 365 days, data is gone forever—even if you upgrade later. Solution: Export quarterly if you plan to stay on Free long-term.
Teams hit the 10-app limit quickly by installing apps they barely use. Solution: Audit your integrations monthly and remove unused ones.
$7.25/user sounds cheap until you multiply by team size. For a 50-person team, that's $4,350/year. Solution: Calculate your actual cost and compare alternatives like ViewExport.
If data was permanently deleted after 1 year, upgrading won't bring it back. Solution: Don't wait until year 2 to decide—export data regularly from the start.
If you're not ready to upgrade, here are practical ways to work around Slack Free's limitations:
Slack's free plan allows workspace admins to export public channels (but not private channels or DMs). You can request periodic exports and store them externally.
How to export:
The catch: Exports come as raw JSON files—basically unreadable without specialized tools like ViewExport.
ViewExport exists to tackle the pain points head-on. Here's what it does:
Instead of uploading files directly to Slack, store them in Google Drive, Dropbox, or OneDrive and share links. This keeps Slack storage free and ensures files remain accessible long-term.
The downside: It adds friction. Team members need to remember to upload files externally first, and shared links can break if someone moves or deletes a file.
Audit which integrations your team actually uses. Remove low-engagement ones and keep only mission-critical tools:
Slack keeps messages searchable for 90 days. After 90 days, messages are hidden but still stored. After 1 year, all data is permanently deleted from Slack's servers.
Messages older than 90 days are hidden from search and cannot be accessed in the Slack interface. They still exist in Slack's systems until the 1-year mark, at which point they're permanently deleted.
Yes, workspace admins can export public channel history as JSON files. However, the free plan does NOT allow exports of private channels or direct messages without upgrading to a paid plan with Compliance Export enabled.
No! Slack's free plan supports unlimited users. The limitations are on message history (90 days), file storage (5 GB total), and features like group video calls and integrations.
If you downgrade from Pro or Business+ to Free:
Yes! If you upgrade within 1 year of being on the free plan, all your hidden messages (from beyond the 90-day window) will become visible and searchable again. However, if data was permanently deleted after 1 year, upgrading won't bring it back.
After 1 year on the free plan, yes—messages are permanently deleted from Slack's servers and cannot be recovered, even if you upgrade. This is why regular exports are critical for teams planning to stay on Free long-term.
No, Slack's free plan is free forever. There's no trial period or time limit. You can use it indefinitely with the limitations described (90-day message history, 10 integrations, 5 GB storage).
Slack's free plan is great for getting started, but its message history cutoff, storage caps, and the 1-year deletion rule can become serious blockers as your team grows. Upgrading to Pro solves these issues but gets expensive fast, especially for larger teams.
For many teams, the smarter move is a hybrid approach: stay on Slack Free for daily communication and use a tool like ViewExport to preserve and search years of Slack history without the per-seat cost. You get the best of both worlds—real-time collaboration in Slack and long-term message retention with ViewExport.
If your team is hitting the 90-day wall and you're tired of losing important conversations, try ViewExport today. Export your workspace, upload it, and see how easy it is to search through months (or years) of Slack messages without paying $87/user/year for Slack Pro.
Key Takeaway: Don't wait until important data is permanently deleted after 1 year. Start exporting regularly now, even if you're unsure about upgrading. Your future self will thank you.
