Convert QOI to PNM
Convert QOI files to PNM 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 QOI to PNM
- Drop your .qoi files above, or click Upload Files. You can add many files at once.
- PNM 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 .pnm files as soon as each one finishes.
What to know about QOI to PNM conversion
- PNM has no transparency, so transparent areas of the QOI are filled with white.
- PNM is best for image processing pipelines and scientific code, and opens in GIMP, ImageMagick and Netpbm tools.
QOI vs PNM
| Feature | QOI (Quite OK Image Format) | PNM (Netpbm Portable Anymap) |
|---|---|---|
| Compression | lossless | uncompressed |
| Transparency | Yes | No |
| Animation | No | No |
| Best for | very fast lossless encoding in apps and games | image processing pipelines and scientific code |
| Opens in | specialized viewers and some image editors | GIMP, ImageMagick and Netpbm tools |
QOI (Quite OK Image Format): A fast, simple lossless image format with compression comparable to PNG and much faster encoding.
PNM (Netpbm Portable Anymap): The generic Netpbm format family (PBM, PGM, PPM) for simple uncompressed bitmaps, graymaps and pixmaps.
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 QOI to PNM 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 QOI 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 PNM to QOI.
Convert QOI to other formats
- QOI to JPG
- QOI to PNG
- QOI to PDF
- QOI to WEBP
- QOI to GIF
- QOI to SVG
- QOI to AVIF
- QOI to ICO
- QOI to TIFF
- QOI to BMP
- QOI to JXL
- QOI to PSD
Convert other formats to PNM
- JPG to PNM
- PNG to PNM
- PDF to PNM
- WEBP to PNM
- HEIC to PNM
- GIF to PNM
- SVG to PNM
- AVIF to PNM
- ICO to PNM
- TIFF to PNM
- BMP to PNM
- JXL to PNM
See every QOI converter and PNM converter, or browse the full converter directory.