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jello vs jaq: catalog facts
jello	jaq
Free Free and open source under the MIT license.	Free The open-source application is available without a license fee.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Queries JSON using Python list and dictionary syntax Accepts JSON and JSON Lines from files or standard input	Reusable query engine with additional data formats
Queries use Python syntax rather than jq syntax	Some behavior differs from jq, so existing filters should be checked.
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
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 October 8, 2026	Official website Full listing and sources Checked September 22, 2026

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