Convert PNM to QOI
Convert PNM 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 PNM to QOI
- Drop your .pnm 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 PNM to QOI conversion
- QOI is best for very fast lossless encoding in apps and games, and opens in specialized viewers and some image editors.
PNM vs QOI
| Feature | PNM (Netpbm Portable Anymap) | QOI (Quite OK Image Format) |
|---|---|---|
| Compression | uncompressed | lossless |
| Transparency | No | Yes |
| Animation | No | No |
| Best for | image processing pipelines and scientific code | very fast lossless encoding in apps and games |
| Opens in | GIMP, ImageMagick and Netpbm tools | specialized viewers and some image editors |
PNM (Netpbm Portable Anymap): The generic Netpbm format family (PBM, PGM, PPM) for simple uncompressed bitmaps, graymaps and pixmaps.
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 PNM 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 PNM 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 PNM.
Convert PNM to other formats
- PNM to JPG
- PNM to PNG
- PNM to PDF
- PNM to WEBP
- PNM to GIF
- PNM to SVG
- PNM to AVIF
- PNM to ICO
- PNM to TIFF
- PNM to BMP
- PNM to JXL
- PNM to PSD
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
- JXL to QOI
See every PNM converter and QOI converter, or browse the full converter directory.