Eziclip

Video too big for Slack

Slack stops the send when the file is over 1 GB (workspace-dependent). Here are the real limits, then a free compressor that runs on your machine.

Slack limits that actually matter

  • Size: 1 GB (workspace-dependent)
  • Duration: Slack’s file cap is high on many plans, but slow Wi‑Fi and mobile still punish huge uploads.
  • Resolution: For channel demos, 1080p Medium is a good default; use Strong on mobile networks.

Slack free/pro file limits are high (often up to 1 GB); practical caps are network and patience.

How to fix it

  1. Check the limit. Slack: 1 GB (workspace-dependent). Slack free/pro file limits are high (often up to 1 GB); practical caps are network and patience.
  2. Trim first. Cut silence and false starts. A shorter timeline compresses cleaner than crushing a long take.
  3. Compress in the browser. Open the Slack preset, drop the file, pick Medium. Preview before you download.
  4. Send again. Download the MP4 and attach or upload in Slack. If it still fails, drop one more step to 720p.

Open the Slack compress preset — or the general video compressor.

Tips for Slack

  • Huge uploads clog threads — compress so people can scrub the clip.
  • Prefer MP4 H.264 for the widest Slack client support.
  • Trim the take before you compress.

Related

Questions

1 GB (workspace-dependent). Slack free/pro file limits are high (often up to 1 GB); practical caps are network and patience. Slack’s file cap is high on many plans, but slow Wi‑Fi and mobile still punish huge uploads.

No. Eziclip compresses in your browser. The file does not go to our servers for the compress job.

Strong targets chat-sized files; Medium keeps more detail. Use the before/after wipe on the tool page before you send.

Yes — /compress-video/slack applies a default tuned for Slack's cap (1 GB (workspace-dependent)).