LINE sticker image converter

Turn your drawings or AI-generated images into files LINE Creators Market accepts: the background is made transparent, each image is resized with a margin and named, and everything comes as one ZIP.

Drop images here, or click to choose PNG / JPG / WebP, up to 40 images, 10 MB each

Make the background transparent

How to use it

1Choose imagesUp to 40 PNG / JPG / WebP files of up to 10 MB each
2ConvertA plain background becomes transparent; each image is fitted into 370×320 with a margin
3Pick main and tabThe main image shows in the store; the tab image shows in the sticker list of chats
4Download the ZIPIt holds 01.png onwards, main.png and tab.png, ready to upload

LINE sticker image rules

Sticker images	Up to 370×320 px; 8, 16, 24, 32 or 40 of them
Main image	240×240 px (shown in the store)
Chat tab image	96×74 px (shown in the sticker list in chats)
Format	PNG with a transparent background, under 1 MB each
Margin	About 10 px on every side

Good to know

Backgrounds of one colour, such as white or green, can be made transparent. Photos and patterned backgrounds stay as they are; only the size is adjusted.
PNGs that are already transparent keep their transparency; only the margin and size are adjusted.
When you make images with an AI image generator, ask for a plain white background or a green screen. For a white character, green works best.
Images are only used while they are converted and are never stored. You can convert up to 200 images a day.

FAQ

Do I need an account?

No. Anyone can use it, for free.

Can every background be made transparent?

Only backgrounds of one colour. A grey-and-white checkerboard that looks transparent is just a pattern drawn into the image; export it again on a plain background.

Can I submit the ZIP as it is?

Size, format and margins meet the rules. What the stickers show is checked in LINE's review.

Are my images stored?

No. Once converted, the results only stay in this page.

More free tools

Sticker sheet splitterSplit a whole sheet of stickers drawn by ChatGPT or Gemini into single transparent stickers.Title and description length checkerCheck titles, descriptions and copyright with LINE's rule: full-width characters count 2, half-width 1.

Want AI to draw the whole set from your character?

With MochiStamp you write one line about your character, and get a set of 8 to 40 stickers drawn and packed into this same ZIP. Sign in with Google for 10 free.

Make stickers