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Boop vs DevKnife: catalog facts
Boop	DevKnife
Free Free and open source.	Paid Paid app with a 30-day free trial that needs no sign-up or card.
macOS	macOS
Keeps sensitive text on your machine instead of online tools Many built-in actions for JSON, Base64, URL encoding and hashing	Many everyday developer tools in one app Processes data locally and works offline
macOS only Plain text only, with no file handling	macOS only Paid after the trial
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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