Convert PNG to QOI
Convert PNG 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 PNG to QOI
- Drop your .png 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 PNG to QOI conversion
- Transparency is preserved: QOI supports an alpha channel just like PNG.
- QOI is best for very fast lossless encoding in apps and games, and opens in specialized viewers and some image editors.
PNG vs QOI
| Feature | PNG (Portable Network Graphics) | QOI (Quite OK Image Format) |
|---|---|---|
| Compression | lossless | lossless |
| Transparency | Yes | Yes |
| Animation | No | No |
| Best for | screenshots, logos and graphics with sharp edges or transparency | very fast lossless encoding in apps and games |
| Opens in | every browser, operating system and image editor | specialized viewers and some image editors |
PNG (Portable Network Graphics): A lossless image format supporting transparency, ideal for web graphics, screenshots, and logos.
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 PNG 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 PNG 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 PNG.
Convert PNG to other formats
- PNG to JPG
- PNG to PDF
- PNG to WEBP
- PNG to GIF
- PNG to SVG
- PNG to AVIF
- PNG to ICO
- PNG to TIFF
- PNG to BMP
- PNG to JXL
- PNG to PSD
- PNG to TGA
Convert other formats to QOI
- JPG 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 PNG converter and QOI converter, or browse the full converter directory.