Download and install the latest version of Filestar.
Right click on one or more J2c file(s) on your desktop and select Convert with Filestar.
Type oil paint filter in the search box.
Press Run.
Or let an AI agent do it: filestarcli -i photo.j2c -c "oil paint filter" (how).
Let your AI agent oil paint J2C filter
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:
“Use Filestar to oil paint J2C filter in my Downloads folder”
Or run it yourself:
filestarcli -i photo.j2c -c "oil paint filter"
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 oil paint J2C filter?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.j2c -c "oil paint filter" on your computer, so your files stay on it.
The JPEG 2000 Code Stream (j2c) file format is a type of image file format that is part of the JPEG 2000 family of image standards. This format is specifically designed for encoding images in a highly efficient manner, allowing for both lossless (exact reproduction) and lossy (approximate) compression. The j2c format focuses on the core coding stream of JPEG 2000 images, representing the encoded image data without additional metadata or structure.
