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Aseprite Converter

Open .aseprite and .ase files and export GIF, APNG, WebP, MP4 or a sprite sheet, by tag and with crisp scaling.

Free, no uploads, no sign-up. Runs 100% in your browser.

How Aseprite Converter works

The Aseprite file is read directly in the browser: layers, linked and compressed cels, palettes and tags are merged the way Aseprite shows them. Non-normal blend modes are drawn as normal.

Input: ASEPRITE, ASE. Output: GIF, APNG, WEBP, MP4, PNG, JSON.

How to use Aseprite Converter

  1. Drop one or more images onto Aseprite Converter.
  2. Tune the options. The before/after preview updates live.
  3. Process the batch.
  4. Download a single image, or everything as a ZIP.

Tips

  • Most image tools accept many files at once.
  • WebP and AVIF give much smaller files than JPG at the same visual quality.
  • Set a default image quality in Settings. Tools that do not choose their own quality use it.

Aseprite Converter FAQ

Are my files uploaded?
No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
Is it free? Are there limits or watermarks?
Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
Does it work offline?
Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

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OpenFile runs in your browser. Turn on JavaScript to use the tools.