Compress GIF for Slack

Pre-configured for Slack's limits. Target size: 1 MB · Recommended width: 400px.

Slack GIF Tips

  • Slack's inline GIF preview is capped at 1 MB — larger files become a download link instead.
  • Resize to 400 px wide for a clean preview without taking up too much message space.
  • Reduce colors to 64–128 and use lossy compression to hit the 1 MB target easily.

Slack GIF FAQ

What is Slack's GIF size limit?

GIFs display inline if they are under 1 MB. Files larger than 1 MB appear as a download link.

How do I make a GIF show inline in Slack?

Compress the GIF below 1 MB and Slack will display it automatically in the message thread.

Does Slack support animated GIFs?

Yes. Slack plays animated GIFs directly in the conversation when the file is under 1 MB.

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