software · Picked by us
Turn a picture into your own Slack emoji
Crop a picture, remove its background and save a small PNG for Slack.
Free; creator's development record
Free; Apache 2.0 licence
Free; no sign-in to make the file

What it does
Make a square emoji image without a full image editor.
Who it helps
People who want custom emoji for their team or community.
How it was made
- Models
- Claude · version not given
- Tools
- Claude Code · AI coding
- Simon described the image format, size limit and editing controls he wanted.
- His development record links the Claude Code session.
What the person did
Simon chose the requirements. Later manual changes are not listed.
What we know
Creator-reported: The development record links Claude Code; it does not name the exact model version.
Access checked — 2026-09-20 · Loaded our logo, resized it to 128 × 128 and downloaded the PNG. Background removal also passed our 19 September check. We did not add the result to a Slack workspace.
Can you use it?
Tool and preview: Simon Willison, Apache 2.0. Keep the licence and required notices when reusing the code. The preview uses our own Made With Models logo. You need the right to use any picture you upload. This feature does not imply an endorsement by the creator or Slack.
About this project
Picked by Made With Models. Added 2026-09-20. Updated 2026-09-20.