Slack Emoji Maker

Create Slack-ready custom emoji in your browser. FastEdit applies the Slack emoji preset, crops square, resizes to 128x128, and helps keep the export under 128KB without uploading your source image or animation.
Open Slack Emoji Maker

Features

How It Works

01

Open the Slack emoji maker

FastEdit opens with the Slack Emoji preset selected.

02

Drop your image or animation

Use a still image for static emoji or an animated file for GIF emoji.

03

Crop square

Keep the face, icon, or reaction readable inside the 128x128 frame.

04

Export under 128KB

Download the finished file and upload it as a Slack custom emoji.

Make the edit, check the result, keep the file on your device.

Open Slack Emoji Maker

FAQ

Bring the file.
Leave with the fix.

Open the editor, drop in the image, PDF, GIF, or video that is holding things up, and export a cleaner version. No signup, no upload, no watermark.

Open the editor
Free to use Runs in your browser No account needed