Convert JPG to PPM

Convert JPG files to PPM 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 Files

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How to convert JPG to PPM

  1. Drop your .jpg files above, or click Upload Files. You can add many files at once.
  2. PPM is already selected as the output. Open the settings (gear icon) to fine-tune the result.
  3. Click Convert All. ImageMagick runs inside your browser through WebAssembly; nothing is uploaded.
  4. Download your .ppm files as soon as each one finishes.

What to know about JPG to PPM conversion

  • PPM 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.
  • PPM is best for image processing pipelines and scientific code, and opens in GIMP, ImageMagick and Netpbm tools.

JPG vs PPM

FeatureJPG (Joint Photographic Experts Group)PPM (Netpbm Portable Pixmap)
Compressionlossyuncompressed
TransparencyNoNo
AnimationNoNo
Best forphotographs and images where a small file size mattersimage processing pipelines and scientific code
Opens inevery browser, phone, camera and image editorGIMP, ImageMagick and Netpbm tools

JPG (Joint Photographic Experts Group): A popular lossy compressed image format, widely used for digital photographs and web images.

PPM (Netpbm Portable Pixmap): A minimal uncompressed color image format from the Netpbm toolkit, popular in image processing pipelines.

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 PPM 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.

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