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Slack Export

Export your Slack DMs, group DMs, and private channels to a ZIP — locally on your Mac, with one double-click.

Apple-notarized · macOS 14.0+ · Apple Silicon

What it does

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No admin role required
Slack's official export can only be triggered by a workspace admin, and it skips DMs and private channels anyway. This app pulls everything your account can see — DMs, group DMs, private channels, the lot.
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Stays on your Mac
Messages, usernames, and attachments never leave the device. No third party, no AI, no analytics. The only network calls are to Slack's own API.
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Standard Slack export format
The ZIP layout matches Slack's official export — channels.json, users.json, one JSON file per channel per day. Viewers and import tools work out of the box.
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No Terminal, no Homebrew
Everything's bundled inside the app. Download, double-click, follow the dialogs. Done in five minutes.

1
Open the .dmg, drag the app to Applications
Standard "drag to Applications" install — same as any other Mac app. It's Apple-notarized, so no Gatekeeper warning.
2
Type your workspace subdomain
e.g. spike-networks for spike-networks.slack.com.
3
Sign in inside the app window
No external browser. The login page renders inside the app and you sign in the usual way. SSO (Google, Apple, SAML, etc.) all work.
4
Pick the channels you want
Multi-select grouped by DM / group DM / private / public. A "Recommended (skip public)" button selects everything but the noisy public channels in one click.
5
Open the result in Finder
The ZIP lands at ~/SlackExport/slack-export.zip, along with a SUMMARY.json reporting channel and message counts.

Will my admin be notified?: We use a normal browser-based login, so Slack may surface a "new device sign-in" notification according to your workspace's policy. The export operation itself isn't usually visible in the audit log, but if you're using this on a company workspace, please check your org's data-handling policy first.
What's running under the hood?: We bundle rusq/slackdump (MIT-licensed, the 4.3 series) as the engine. This app is a friend-facing SwiftUI shell on top of it.
Does it run on Intel Macs?: v1 is Apple Silicon (M1 or newer) only. Intel support is on the table if there's demand.
Can I export after I leave the workspace?: Only while you still have access. Run the export before your account is deactivated.
What ends up in the ZIP?: Every message body, user metadata, thread, and file-attachment URL + metadata from the channels you picked. Same directory structure as Slack's official export.