Slack Emoji GIF

Turn an animated GIF into a Slack custom emoji target: 128KB, square dimensions, and up to 50 frames. Compression runs locally and outputs a .gif.

Files stay in your browser. No upload. No watermark.

Compress for Slack Emoji

Drop a GIF here

or

All compression runs locally via WebAssembly. Files are not uploaded to any server.

Emoji-specific target

This is tuned for Slack custom emoji size pressure, not generic Slack file sharing.

Upload workflow in one place

Compress the GIF, download it, then upload it as a custom emoji in your Slack workspace.

How it works

1

Upload

Choose an animated GIF from your device.

2

Fit

The preset tries to reach 128KB with smaller dimensions, fewer colors, and frame limits.

3

Upload to Slack

Open Slack, go to Customize Workspace, choose Emoji, and add the downloaded .gif.

FAQ

What is the Slack custom emoji size target?

This page targets 128KB and keeps the output as an animated .gif for Slack custom emoji use.

Can I upload this directly to Slack?

Yes. After download, open your Slack workspace settings, choose Emoji, and upload the compressed .gif.

Does this upload my GIF?

No. The compression flow is designed to run locally in your browser.