Stayput

Convert AVIF to PNG

A lossless, transparent-capable copy of an AVIF image, made on your device.

Nothing is uploaded Works offline Open source No limits, no watermark
Drop AVIF files hereor click to choose files. Batches welcome.
    Working…

    Done

    Your files are processed on this device and never sent to a server. Reload the page to clear everything from memory.

    Pick PNG over JPG when the AVIF has transparency, or when the image will be edited further and you do not want another lossy step. PNG is the lossless container everything can open.

    Your browser decodes the AVIF and the converter writes a PNG with the alpha channel intact. The file will be much larger than the AVIF, because AVIF is one of the most efficient lossy formats and PNG stores every pixel.

    How it works

    1. Drop your AVIF files onto the page, or tap to pick them. Batches are fine.
    2. There are no quality settings: PNG is lossless, so the output matches the decoded image exactly.
    3. Download each PNG, or all of them as one zip.

    In your browser, not on a server

    Your browser already knows how to decode JPG, PNG, WebP, AVIF and SVG. Stayput draws each image onto an off-screen canvas and asks the browser to encode it again in the format you picked. HEIC input goes through the libheif WebAssembly decoder, and JPEG XL (or AVIF, in a browser without native support) through the Squoosh decoders compiled to WebAssembly, fetched once as program files and cached. Nothing here needs a server because nothing here is beyond what a browser can do on its own.

    Compared with upload-based tools: Online converters upload your image, convert it on their machine and hand it back through an ad-covered download page. This does the same conversion with the same codecs, on your device, in less time than the upload.

    Verify it yourself. Load this page, turn off Wi-Fi or switch to airplane mode, and run the tool. Or open your browser's developer tools (F12, or Cmd-Option-I on a Mac), pick the Network tab, and watch it while you convert. The panel above does the same count for you.

    Questions

    Is transparency preserved?

    Yes. Transparent areas of the AVIF come through as transparent PNG.

    Why is the PNG so big?

    AVIF compresses very aggressively; PNG does not compress lossily at all. A 100 KB AVIF can become a multi-megabyte PNG. Use AVIF to JPG when size matters and transparency does not.

    Which browsers can do this?

    Any current version of Chrome, Edge, Firefox or Safari 16 and later. Decoding happens in the browser, so an old browser without AVIF support will show an error rather than upload the file anywhere.

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