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Convert QOI to WEBP

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Verified by Adam B.· reviewed by FE Editorial ·updated Sep 5, 2026
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Is it possible to convert QOI to WEBP?
Yes - QOI converts to WEBP.

You can do it right here with our free converter - no sign-up, and your file is deleted right after.

Run magick input.qoi output.webp with ImageMagick; add -define webp:lossless=true to keep pixels and alpha identical, or leave it lossy for the smallest file. WebP is chosen mainly to shrink QOI images for the web while keeping transparency.

Also to WEBP: AVIFS · TGS · AVIF

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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QOI → WEBP converterFREE
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Why convert QOI to WEBP?

QOI is fast but produces relatively large files and is not viewable in browsers, so people convert to .webp for small, web-ready images with alpha. Lossless WebP preserves the exact pixels, while lossy WebP trades some quality for a much smaller size.

How to convert QOI to WEBP

ImageMagick OPEN-SOURCE

Run magick input.qoi output.webp. Add -define webp:lossless=true to stay pixel-perfect, or -quality 80 for a smaller lossy file.

XnView MP APP

Open the .qoi, then File > Export... and choose WEBP, where a checkbox toggles lossless vs lossy quality. XnConvert batches folders.

GIMP 3.0 OPEN-SOURCE

Open the .qoi in GIMP 3.0, then File > Export As... with a .webp name; the export dialog lets you tick 'Lossless' or set a quality slider.

About these formats

.QOI Quite OK Image Format

A .qoi file is a Quite OK Image, a lossless raster image saved in an open format created by Dominic Szablewski in 2021 as a much faster alternative to PNG. It stores 24-bit RGB or 32-bit…

Open .QOI details →
.WEBP WebP image

A WebP file is a raster image format made by Google that stores photos and graphics at smaller file sizes than JPEG or PNG. Any web browser opens it instantly - drag the file onto a tab. On…

Open .WEBP details →

Quality & what to watch

  • Lossless WebP keeps pixels and alpha exactly; lossy WebP discards detail to shrink the file, so choose deliberately.
  • WebP maxes out at 16383x16383 pixels, so very large QOI images may not fit.
  • Older software and some editors still open WebP poorly, so keep the source QOI or a PNG as a fallback.

Frequently asked questions

Will WebP keep transparency?
Yes, both lossless and lossy WebP support an alpha channel, so QOI transparency is retained.
Lossless or lossy WebP?
Use lossless to match the QOI pixel-for-pixel; use lossy for the smallest files when a little quality loss is acceptable.
How do I force lossless in ImageMagick?
Add -define webp:lossless=true to the magick input.qoi output.webp command.
Why is lossy WebP smaller than my QOI?
Lossy WebP throws away visual detail the eye rarely notices, which QOI's lossless scheme never does.