AI Slack Emoji Generator
Slack emoji maker
Make custom Slack emoji with AI. Describe any emoji, generate a crisp transparent-background PNG, and add it to Slack in seconds. Custom emoji are central to Slack culture — reactions, status, and channel rituals. A transparent PNG drops straight into an emoji slot and looks crisp in reactions and the picker.
Emojis you create are public and may appear in Explore.
How to add a custom emoji to Slack
- 1
Generate and download your emoji as a transparent PNG.
- 2
In Slack, click the emoji button in any message field, then ‘Add Emoji’.
- 3
Upload the PNG, give it a name (e.g. :ship-it:), and save.
- 4
React with it or type its name in any channel or DM.
Make a Slack emoji with AI
1. Describe it
Type the emoji you want — a mascot, a reaction, an in-joke for your Slack space.
2. Generate
AI renders a glossy, transparent emoji in about a minute. Tweak and regenerate freely.
3. Add to Slack
Download the PNG and upload it following the steps above (128×128 px, under 128 KB (PNG or GIF)).
Slack emoji FAQ
How do I make a custom Slack emoji?
Describe the emoji you want in the box above and generate it with AI. Download the transparent PNG, then upload it to Slack — custom emoji for Slack are recommended at 128×128 px, under 128 KB (PNG or GIF).
What size should a Slack emoji be?
Slack custom emoji work best at 128×128 px, under 128 KB (PNG or GIF). Our generator outputs high-resolution transparent PNGs you can resize to fit.
Is the Slack emoji maker free?
You can browse and download ready-made emoji for free. AI-generated custom emoji use credits, with your first creation free to try.
Can I use animated emoji on Slack?
Yes — Slack supports animated emoji/stickers (GIF), in addition to static transparent PNGs.