Line Art Emojis for Slack
Make line art emojis ready for Slack. Transparent PNG output, sized for Slack custom emojis and stickers.
A monochrome line-art treatment — clean black strokes on transparent background, no fills. Excellent for minimalist branding, single-colour print, and embroidery files.
Slack custom emojis must be square, under 128KB, and ideally 128x128px. Workspaces with strict admin controls allow only specific admins to add new emoji — but anyone can generate the PNG with PennyLogo and request it be added.
Example photo-to-emoji results
FAQs
Is the line weight consistent?
The model targets even line weight for clean reproduction at any size, including small print runs.
Can I get colour outlines?
Yes, add a colour hint like "navy line art" to the prompt.
What is the Slack emoji size limit?
Slack accepts square PNGs up to 128KB. The recommended size is 128x128 pixels.
Can my whole team use it?
Once added by a workspace admin, custom emojis are available to every member of that Slack workspace.