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View PGM Files Online

Use this free tool to view your PGM (Portable graymap format) files online without needing to download or install any software. Our PGM viewer tool will render your file within the browser with the ability to view full screen if needed.

How to View your PGM File Online?

Here are two simple steps to display your PGM file in any web browser.

Upload an PGM

Click the "Upload a File" button and select an PGM to upload. The maximum file size is 100MB.

View your PGM

Once processed, your PGM file will be displayed in the web browser.

File Format Information for PGM

Full NamePortable graymap format
Mime Typeapplication/octet-stream
ToolsPGM Converters, Create Cookie Cutter, PGM Viewer


The PGM file format is a bitmap image format used to store grayscale images in either a text or binary format. The text format, which is known as P2, enables easy manual editing of the image data due to it being stored in a human-readable format.

Greyscale data is stored within the file using values between 0 and 255; this gives 256 levels of gray, with 0 being black and 255 being white, and everything in between being a different shade of gray.

PGM Features

  • Supports Lossy Compression
  • Supports Non Lossy Compression
  • Supports Transparency
  • Supports Color Palettes
  • Supports Monochrome (1-Bit)
  • Supports 16 Colors (4-Bit)
  • Supports 256 Colors (8-Bit)
  • Supports 16 Million Colors (24-Bit)

Frequently Asked Questions

How can I view my PGM file online?

First, click the "Upload..." button and select the PGM file you wish to view. Once your PGM file has been received it will be displayed in your browser.

How long does it take to view my PGM file?

We aim to process all PGM file viewing requests as quickly as possible, this usually takes around 5 seconds but can be more for larger or more complex files so please be patient.

How accurate is the PGM file viewer?

We aim to create the most accurate rendition of your PGM file with our tools. Our tools are under constant development with new features and improvements being added every week.

Is it safe to view my PGM file on

Yes, of course! We do not store the PGM file you submit. The generated preview file within your browser is deleted after 15 minutes,

Can I view my PGM file on Windows, Linux, Android, iOS or Mac OS?

Yes! Our PGM file viewer will run on any system with a modern web browser. No specialist software is needed to use our file viewing tools.

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