Custom emoji
128 × 128 px
- Animated
- GIF, under 128 KB
- Still picture
- PNG, under 128 KB
- Length
- up to 5 s · 50 frames
FREE TOOLS · STICKERS AND EMOJI
Slack emoji maker
Turn a GIF, video or picture into a custom Slack emoji: 128 px and under 128 KB.
- Free
- No sign-in
- Runs in your browser
How it looks in Slack
Otto, a Masko mascot, as Slack custom emojis. Tap one to send it.
# launchSlack
shipped it 3
gg 4
How it works
- 01
Drop your file
A GIF, MP4, WebM, MOV, PNG or WebP.
- 02
Get your emoji
A 128 px GIF under 128 KB and 50 frames, or a PNG from a picture.
- 03
Add it to Slack
Emoji button, then Add Emoji, then a name like :ship-it:.
Slack emoji size
What the maker makes for Slack, inside its limits.
Add it to Slack
- Click the emoji button in any message box.
- Choose Add Emoji and upload the file.
- Give it a name, such as :party-cat:.
Slack is a trademark of its owner. Masko is not affiliated with Slack; the logo only shows which app the file is for.
Give your team its own mascot emoji
Create a mascot in Studio, then turn its reactions into Slack emoji here.
THE LITTLE DETAILS
A few questions.
What size is a Slack emoji?
Slack asks for square images under 128 KB, in JPG, PNG or GIF. At 128 × 128 pixels they look sharp everywhere.
How many frames can an animated Slack emoji have?
Up to 50. The maker lowers the frame rate of longer clips to stay under it.
Who can add custom emoji?
Anyone in the workspace, unless an admin limits it to admins and owners.
Slack help: add custom emojiIs my file uploaded?
No. Everything runs in your browser.
Can we have emoji of our own mascot?
Yes. Make your mascot in Masko Studio, animate its reactions, then turn each one into an emoji here.
Open Masko Studio
