Download and install the latest version of Filestar.
Right click on one or more Cbz file(s) on your desktop and select Convert with Filestar.
Type compress in the search box.
Press Compress.
Or let an AI agent do it: filestarcli -i file.cbz -c "compress" (how).
Let your AI agent compress CBZ
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 compress CBZ in my Downloads folder”
Or run it yourself:
filestarcli -i file.cbz -c "compress"
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 compress CBZ?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.cbz -c "compress" on your computer, so your files stay on it.
It can be likened to a .cbr file but it uses .zip compression not .rar like in CBR file. It is a comic book zip file format with several images (in different or the same format) arranged in pages.
