Slack app

Send big files right from Slack.

Add the app to your workspace, link your account once, then /send big files as clean share links — in any channel or DM.

10 GB per file free, 250 GB on Pro — no workspace storage limits eaten.

Your files, one command away.

Big files, straight from Slack

Run /send and the app hands you a share link plus an Add Files button — drop your files on the web, and the link is ready to post to the channel.

Send from any channel or DM

Run /send wherever the app lives and get a clean share link back — plus /transfers to list what you've shared.

Resumable uploads

Files upload on the web in parallel chunks and resume automatically if your connection drops.

Links you control

Add a password and set link expiry before you share, with the same controls you get on the web app.

Up and running in a minute.

No tokens, no admin setup — add it, link once, and the app is yours.

  1. 1

    Add the app to Slack

    Install it to your workspace — then use it from any channel it's in, or just DM it directly.

  2. 2

    Run /start and connect

    The app replies with a Connect Account button. Sign in here, confirm, and the chat flips to “connected” by itself.

  3. 3

    /send and share the link

    Get a share link instantly, add your files on the web, and post the link to the channel — done.

FAQ

Questions, answered.

Everything to know before you connect Slack.

Run /start in the app. It replies with a Connect Account button that opens this site — sign in, confirm, and the chat flips to “Account connected” by itself. Nothing to copy, nothing to configure.

Run /send to get a share link and add files on the web, /request to collect files from anyone, /transfers to list your transfers with share links, and /status to check your plan — right from Slack.

Yes. Using the app is free, with the same limits as the web app. Pro unlocks larger transfers and longer link expiry.

No. Files upload on the web straight to our encrypted storage — never through Slack. Only the share link lands in your channel or DM.

Anytime. Send /logout to the app inside Slack, or use Disconnect on this page — either removes the link immediately.

Yes — linking Slack ties the app to your LargeFileTransfer account so your transfers and history stay in one place. One Slack identity per workspace can be linked to your account.

Bring file transfers into Slack.
Add the app in one tap.

Free, no setup — install the app and send your first file in minutes.