Tools / File Converter / PGM to HDR Converter

PGM to HDR Converter

Convert PGM files to HDR. Batch, free and without uploading.

This tool converts PGM files to HDR. Portable graymap.

Radiance HDR image. HDR is lossless, so nothing is lost from the image during conversion.

Conversion happens inside your browser; your files are never sent to a server.

How to use

1. Drag and drop your PGM files, paste them from the clipboard, fetch one from a link, or use "Choose files".
2. Optionally set a maximum width and height.
3. Press "Convert" and download the HDR files one by one or as a ZIP.

Frequently asked questions

Will converting to HDR reduce quality?

No. HDR is lossless; the image in your PGM is carried over as it is.

How many files can I convert at once?

There is no limit. Select hundreds of files together and download the results as one ZIP.

Are my files uploaded anywhere?

No. Your PGM files are converted to HDR inside your browser and never sent to a server.