Download and install the latest version of Filestar.
Right click on one or more Cr3 file(s) on your desktop and select Convert with Filestar.
Type convert to jpc in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.cr3 -c "convert to jpc" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
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.cr3Contract.cr3
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert CR3 to JPC
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
Then ask your agent:
“Convert the CR3 files in my Downloads folder to JPC”
Or run it yourself:
filestarcli -i file.cr3 -c "convert to jpc"
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 CR3 to JPC?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.cr3 -c "convert to jpc" on your computer, so your files stay on it.
A CR3 file is an image created by select Canon digital cameras, such as the EOS M50 and EOS R. It may store uncompressed RAW image data exactly how it was captured by the CCD or compressed RAW (C-RAW) image data depending on the camera setting selected. CR3 files were introduced in 2018 with the release of the Canon EOS M50, replacing .CR2 files.
Image format that uses JPEG 2000 advanced wavelet compression; supports color depths of 8, 24, and 32 bits per pixel; also supports grayscale, RGB, YCbCr, XYZ, and Lab color spaces.
