CompressToFit

Limit reference

Slack file size limit

Aim for

1GB

As of , Slack caps a single file at 1GB on every plan. Free workspaces have a total storage cap rather than a smaller per-file limit.

Slack’s own documentation

The tool

Compress a file to fit Slack

Video, images or PDFs, already set to 1GB. Runs on your machine — nothing is uploaded.

Step 1: where are you sending it?

1Where is it going?

2Add your file

Video, images and PDFs, all compressed on your own machine. No upload, no account, no watermark, no limit on how many files.

Reference

Other platform limits

Every one of them dated, and the advertised number next to the one that works.

All 15 limits, and the form specifications

Background

Why the limit bites, and what to do about it

All guides