Mass Delete Slack Messages in Channels
Slack keeps everything you've ever typed at work. The jokes, the hot takes, the 4pm griping, all searchable by anyone in the workspace years later. Redact deletes your Slack messages in bulk, from as many channels as you were in, filtered as finely or as broadly as your situation calls for.
Available on
Plan
The office remembers everything
Work chat feels casual. It isn't.
Slack reads like texting, but it's a workplace record
Friday-at-5pm tone isn't what you want quoted back in a Monday meeting.
Search puts it one query away
Anyone in the workspace can search the channels you talked in. Your 2021 opinions about the reorg are sitting in those results, waiting patiently.
You can't clean it by hand
Slack has no bulk delete. Removing your history manually means hovering over every message you ever sent, one three-dot menu at a time.
Five ways to filter before you delete
The Channel Selector scopes the run to the rooms you pick. Start and end dates fence the window. The Search term filter mirrors Slack's own search, digging through channel messages for names, projects, or language you'd rather retire. The Message Content filter matches your keywords against the body of a message in any conversation, channel or DM. Type filters isolate messages or files. Leave both selected to clear every type. For private threads, switch the selector to its DMs tab, covered on the Slack DMs page.
- Channel selector
- Date range
- Keywords
- Message types
- Preview first
Where, when, what it says, what it contains, what type it is
Leave the filters open for the full history, or narrow the run before you start.
Where
The Channel Selector scopes the run to what you tick. Its DMs tab handles private threads, covered on the Slack DMs page.
When
Start and end dates fence the run. Only after the layoff rumors, only before you switched teams, or your whole tenure.
What it says
The Search term filter mirrors Slack's own search, digging through channel messages for names, projects, or language you'd rather retire.
What it contains
The Message Content filter takes a list of keywords and reads the body of a message in any conversation, channel or DM. Only messages carrying one of your words make the list.
What type it is
Type filters isolate messages or files. Tick the types you want, or leave both selected to clear every type.
Check it once, check it twice, or just let it rip
Preview
The full match list with nothing removed yet.
Review & Delete
Approve messages in batches as the run walks through.
Deletion
Clears every match, start to finish, no takebacks.
Schedule
Set the cleanup to repeat on a schedule, catching new messages as they land.
How a Slack cleanup actually goes
Install Redact, connect the workspace, scope the run, and clear it.
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Connect your Slack workspace
You sign in to Slack from your own machine. Credentials stay on your device and never go to a Redact server.
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Scope it
Choose the channels in the selector. Every room you tick gets a red dot, a reset control clears the lot if you overreach, and dates, keywords, or type filters narrow it from there. For direct messages, use the Slack DMs tool instead.
Heads up: Slack cleanup is available on Ultimate and higher plans.
- 4
Run a preview
Read the match list before anything is permanent. Tune the filters until it's exactly right.
- 5
Delete, your way
Fire the full run, or use Review & Delete to approve as it goes.
Your messages never pass through a Redact server
Redact runs the cleanup from your computer. Your messages, DMs, and Slack login never pass through a Redact server. Disconnect the workspace whenever.
Download Redact Today
We are frequently adding support to other social network services. You can receive direct updates from us in Redact's Discord Channel.
Frequently asked questions
Yes. Leave the filters open, select the channels you care about (or all of them), and every message you've sent in those rooms queues in one run. Preview first, always. For a full workspace wipe that includes DMs, use delete your entire Slack history.
By default, no. It removes the messages you sent. On Enterprise plans, with the right workspace permissions, you can also scan and delete other people's messages. If you're looking to run Redact on a Slack workspace you manage, reach out to our enterprise team.
No, and that surprises people. Leaving removes you from the member list; everything you posted stays on display for whoever remains. Deleting is a separate job, which is exactly the one Redact does.
That's what the two text filters are for. Search term mirrors Slack's own search across channel messages. Message Content matches your keywords against the body of a message in any conversation, channel or DM. Give either one names, projects, or words, and only matching messages make the list.
Messages and files. Tick one or both. Leave both selected to clear every type in the selected channels.
Workspaces can have retention policies and export tools on the admin side, and Redact can't reach those. What it clears is the live message history, which is what coworkers and search actually see.
Redact is free to install and try, and its free tier covers a range of consumer services. Slack, like other work and professional platforms, needs Ultimate or higher. See pricing for the tiers.
Scale decides. Redact paces itself to work within Slack's limits, so years of messages take a while, and the app shows progress while it runs.