LINE Image Resizer — Resize Photos for LINE

Free online tool to resize images for LINE messenger. Generate profile photo, cover image, and stickers at exact pixel dimensions. 100% client-side.

LINE

Resize LINE assets to the exact required sizes — 100% in your browser.

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Your source image

Use a square image ≥512px for a crisp icon.

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PNGJPGWEBPSVG

Max 10MB — runs 100% in your browser

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Why Use This Tool?

LINE is the dominant messaging app across Japan, Taiwan, Thailand, and Indonesia, with over 180 million active users. The platform has an especially vibrant sticker culture — LINE Creators Market allows anyone to sell custom stickers. The sticker dimensions (370×320) are unique and non-square, making a proper resize tool valuable for creators.

LINE Image Size Guide (2026)

Image TypeSize (pixels)Aspect RatioNotes
Profile Photo640×6401:1Displayed as circle in chats
Cover Image1080×878~1.23:1Profile background
Sticker370×320~1.16:1Non-square, transparent PNG

Privacy First — 100% Client-Side

Your images are processed entirely in your browser using the HTML5 Canvas API. Nothing is uploaded to any server. You can verify this by disconnecting from the internet after loading the page — the tool works offline.

Tip: LINE stickers are uniquely 370×320 pixels — a non-square landscape format. When designing for LINE stickers, keep the character or main art centered within these proportions and leave a transparent margin of at least 10 pixels on all sides for the best appearance in chat.

Tips for LINE Images

  • LINE stickers (370×320) are the most distinctive format — the landscape proportions differ from most other platforms. Design with this horizontal emphasis in mind.
  • Cover images at 1080×878 use an unusual aspect ratio. Keep the focal point in the center and test how it looks on both iOS and Android where display heights may differ slightly.
  • Profile photos appear as circles in chats. Center your subject and ensure good contrast for visibility in both light and dark themes.
  • If selling stickers on LINE Creators Market, each set requires 8, 16, 24, 32, or 40 stickers plus a main image and tab image — plan your set size before designing.
  • LINE supports animated stickers (APNG format) — even more expressive, but requires the same 370×320 dimensions.