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View PNM Files Online

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

How to View your PNM File Online?

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

Upload an PNM

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

View your PNM

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

File Format Information for PNM

Full NamePortable anymap
Mime Typeapplication/octet-stream
ToolsPNM Converters, Create Cookie Cutter, PNM Viewer


A PNM file is an image file format used to store color images in a simple binary format and was used in many applications when it was first introduced.

The format stores image pixel data as a sequence of bytes and does not use any compression, meaning there is no loss in quality when saving an image in the PNM format. The use of uncompressed binary does mean that PNM files can become very large at higher resolutions.

PNM 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 PNM file online?

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

How long does it take to view my PNM file?

We aim to process all PNM 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 PNM file viewer?

We aim to create the most accurate rendition of your PNM 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 PNM file on

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

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

Yes! Our PNM 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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