Tools · Particles and FX · Readability audit
Outline & Glow
Bake a pixel outline or a soft glow into a sprite without cutting anything off.
You want a sprite to stand out from the background with a baked outline or glow.
This version
Synced 2026-09-27 from commit a5f9748.
- ·New sample image, made from Kenney's public domain art
The canvas grows by the outline width plus the glow radius, so nothing is clipped. The outline is 1 to 8 px: square (8 neighbours), round or diamond (4 neighbours), inside or outside the sprite. The glow is soft or banded, in a colour you pick. You can keep only the effect and drop the sprite.
Both come from exact distance transforms on the CPU, so the sprite's own pixels come out untouched. Download PNG is the padded result at its real size.