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jp2a vs viu: catalog facts
jp2a	viu
Free Free and open source.	Free Free and open source.
macOS, Linux, Command line	Windows, macOS, Linux, Command line
Very lightweight and fast for quick terminal previews Scriptable, so it fits easily into shell pipelines	Native protocol support for iTerm and Kitty gives sharper image rendering than plain ASCII Written in Rust, so it is fast and has a small footprint
Limited to JPEG input rather than a wider range of image formats No listed Windows build	Best image quality depends on using a terminal that supports its native protocols Command-line only, aimed at developers comfortable with a terminal
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.