Drop an image here
or click to choose · or paste (Ctrl/Cmd + V)
processed in your browser · never uploaded
Drop or click to replace
Fit an illustration or photo to the exact size required for LINE stickers, Discord emoji and more. Pick a preset — LINE sticker (max 370×320), tab image (96×74), main image (240×240), Discord emoji (128×128) or Discord sticker (320×320) — and the tool produces a transparent PNG with your image placed inside that box. Choose Contain (keep the whole image with a transparent margin) or Cover (fill the box and crop the edges), and add the ~10px margin LINE recommends with a slider. If you load a transparent PNG, the transparent areas stay transparent. Nothing is uploaded; every step runs locally on the canvas.
How to use
- Drop an image in, click to choose, or paste (Ctrl/Cmd + V).
- Pick a size preset (LINE sticker / tab / main / Discord, etc.).
- Choose the fit (Contain or Cover) and adjust the margin (px).
- Click Download PNG to export a transparent PNG. The image is never sent anywhere.
FAQ
Are my images uploaded to a server?
No. Resizing and exporting run entirely in your browser using the Canvas API. Your images are never uploaded, stored, or sent anywhere — they are processed only on your device.
What size should a LINE sticker be?
Main sticker images must be a transparent PNG no larger than 370px wide × 320px tall. Each side should be an even number, and individual stickers can differ in size as long as they stay within the maximum. Pick "LINE sticker (max 370×320)" to build a 370×320 transparent PNG.
What's the difference between Contain and Cover?
Contain scales the image down so the whole thing fits inside the box, leaving the spare area transparent (nothing is cropped). Cover scales it up to fill the box and crops whatever overflows. Stickers usually shouldn't be cropped, so Contain is the safer default.
What is the margin for?
LINE recommends leaving about 10px of empty space around the artwork in a sticker. The margin slider reserves that much transparent padding inside the box (it applies in Contain mode).
Is transparency preserved?
Yes. If you load a transparent PNG, the transparent areas are kept transparent in the output. To remove a background first, use the Transparent BG or Round Crop tools, then resize here.