Convert JXL to QOI
Convert JXL files to QOI locally, completely free and with maximum privacy.
Drag and drop your files here
or click to browse local files (large files supported, limited only by browser RAM)
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How to convert JXL to QOI
- Drop your .jxl files above, or click Upload Files. You can add many files at once.
- QOI is already selected as the output. Open the settings (gear icon) to fine-tune the result.
- Click Convert All. ImageMagick runs inside your browser through WebAssembly; nothing is uploaded.
- Download your .qoi files as soon as each one finishes.
What to know about JXL to QOI conversion
- Transparency is preserved: QOI supports an alpha channel just like JXL.
- QOI cannot store animation, so only the first frame of an animated JXL is converted.
- QOI is best for very fast lossless encoding in apps and games, and opens in specialized viewers and some image editors.
JXL vs QOI
| Feature | JXL (JPEG XL) | QOI (Quite OK Image Format) |
|---|---|---|
| Compression | lossy or lossless | lossless |
| Transparency | Yes | Yes |
| Animation | Yes | No |
| Best for | next-generation photos, including lossless recompression of JPEGs | very fast lossless encoding in apps and games |
| Opens in | Safari 17+, recent image editors and viewers | specialized viewers and some image editors |
JXL (JPEG XL): A next-generation image compression format designed to replace legacy JPEG with smaller file sizes and better quality.
QOI (Quite OK Image Format): A fast, simple lossless image format with compression comparable to PNG and much faster encoding.
Conversion options
- Resize by width, height or both (aspect ratio is preserved)
- Filters: grayscale, sepia, blur and sharpen
- Custom output file name
Frequently asked questions
Is it safe to convert JXL to QOI here?
Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.
Is there a file size limit?
There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.
Can I convert several JXL files at once?
Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.
Related conversions
Need the opposite? Convert QOI to JXL.
Convert JXL to other formats
- JXL to JPG
- JXL to PNG
- JXL to PDF
- JXL to WEBP
- JXL to GIF
- JXL to SVG
- JXL to AVIF
- JXL to ICO
- JXL to TIFF
- JXL to BMP
- JXL to PSD
- JXL to TGA
Convert other formats to QOI
- JPG to QOI
- PNG to QOI
- PDF to QOI
- WEBP to QOI
- HEIC to QOI
- GIF to QOI
- SVG to QOI
- AVIF to QOI
- ICO to QOI
- TIFF to QOI
- BMP to QOI
- PSD to QOI
See every JXL converter and QOI converter, or browse the full converter directory.