Add border to PNG files without desktop software. Upload a transparent PNG, set thickness and color, and download a contour border that follows your design.
Works well for logo PNGs, sticker sheets, and marketplace assets that need a clean edge.
Drop your transparent PNG sticker here or click to select
Transparent PNG only · Max 4000×4000px · Max 10MB · 10 free generations / IP / day
Free usage: 10 generations per IP per day
Start with a transparent background and sharp edges. Soft glow or dirty alpha can make the contour thicker than expected.
For print stickers, try 6px white first, then test a physical cut. Scale thickness up if your printer needs more bleed.
Yes. This tool is built for transparent PNG uploads (max 10MB, 4000×4000px).