Convert exr to g3

Download and install the latest version of Filestar.
Right click on one or more Exr file(s) on your desktop and select Convert with Filestar.
Type convert to g3 in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.exr -c "convert to g3" (how).

Let your AI agent convert EXR to G3

Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.

Install Filestar and add it to your agents:

npm install -g filestar
filestarcli agent install

Or add it in one click:

Claude Code:

claude mcp add filestar -- npx -y [email protected] mcp

Then ask your agent:

“Convert the EXR files in my Downloads folder to G3”

Or run it yourself:

filestarcli -i photo.exr -c "convert to g3"

Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.

Can my AI agent convert EXR to G3?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.exr -c "convert to g3" on your computer, so your files stay on it.

Using Filestar With AI Agents → · Download SKILL.md

What is the difference between .exr and .g3?

Name: OpenEXR Image; CCITT Group 3 Fax Image
Extension: .exr; .g3
Format: Binary; Binary
Category: Raster Image; Fax
Developer: Industrial Light & Magic; CCITT
Description: Raster image stored in the OpenEXR format, a high dynamic-range (HDR) image file format developed by Industrial Light & Magic; supports multi-layer images, lossy and lossless compression, and 16-bit and 32-bit pixels; used for storing deep raster images for high-quality graphics; used by raster graphics editing programs and imaging applications.; Fax image created in the CCITT Group 3 compressed format, which is used for digital transmission of fax data and supports 1 bit per pixel; can be viewed by programs such as GIMP and IrfanView.
MIME Type: image/x-exr; image/g3fax
Sample: sample.exr; sample.g3
Wikipedia: .exr on Wikipedia; .g3 on Wikipedia

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