Convert JPG to QOI
Convert JPG 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)
Upload FilesPlatform Statistics
How to convert JPG to QOI
- Drop your .jpg 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 JPG to QOI conversion
- QOI is lossless: it stores the decoded image exactly, which usually makes files larger than the original JPG, but prevents further quality loss when you edit again.
- QOI is best for very fast lossless encoding in apps and games, and opens in specialized viewers and some image editors.
JPG vs QOI
| Feature | JPG (Joint Photographic Experts Group) | QOI (Quite OK Image Format) |
|---|---|---|
| Compression | lossy | lossless |
| Transparency | No | Yes |
| Animation | No | No |
| Best for | photographs and images where a small file size matters | very fast lossless encoding in apps and games |
| Opens in | every browser, phone, camera and image editor | specialized viewers and some image editors |
JPG (Joint Photographic Experts Group): A popular lossy compressed image format, widely used for digital photographs and web images.
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 JPG 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 JPG 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 JPG.
Convert JPG to other formats
- JPG to PNG
- JPG to PDF
- JPG to WEBP
- JPG to GIF
- JPG to SVG
- JPG to AVIF
- JPG to ICO
- JPG to TIFF
- JPG to BMP
- JPG to JXL
- JPG to PSD
- JPG to TGA
Convert other formats 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
- JXL to QOI
- PSD to QOI
See every JPG converter and QOI converter, or browse the full converter directory.