Convert PNM to PNG
Convert PNM files to PNG 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 PNG
- Drop your .pnm files above, or click Upload Files. You can add many files at once.
- PNG 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 .png files as soon as each one finishes.
What to know about PNM to PNG conversion
- PNG is best for screenshots, logos and graphics with sharp edges or transparency, and opens in every browser, operating system and image editor.
PNM vs PNG
| Feature | PNM (Netpbm Portable Anymap) | PNG (Portable Network Graphics) |
|---|---|---|
| Compression | uncompressed | lossless |
| Transparency | No | Yes |
| Animation | No | No |
| Best for | image processing pipelines and scientific code | screenshots, logos and graphics with sharp edges or transparency |
| Opens in | GIMP, ImageMagick and Netpbm tools | every browser, operating system and image editor |
PNM (Netpbm Portable Anymap): The generic Netpbm format family (PBM, PGM, PPM) for simple uncompressed bitmaps, graymaps and pixmaps.
PNG (Portable Network Graphics): A lossless image format supporting transparency, ideal for web graphics, screenshots, and logos.
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 PNG 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 PNG to PNM.
Convert PNM to other formats
- PNM to JPG
- 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
- PNM to TGA
Convert other formats to PNG
- JPG to PNG
- PDF to PNG
- WEBP to PNG
- HEIC to PNG
- GIF to PNG
- SVG to PNG
- AVIF to PNG
- ICO to PNG
- TIFF to PNG
- BMP to PNG
- JXL to PNG
- PSD to PNG
See every PNM converter and PNG converter, or browse the full converter directory.