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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 2 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.


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 ImageToStl.com?

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.

File format information for PGM

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


The PGM format is an image file format used for grayscale images. It provides pixel-level accuracy without compression, making it suitable for various applications where image fidelity is crucial.

PGM files can come in different variants, with plain text and binary formats available, and they consist of a header section containing image metadata and the actual image data in a grid of grayscale values.

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