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age vs hat.sh: catalog facts
age	hat.sh
Free Free and open source under the BSD 3-Clause licence.	Free Free to use in the browser; the project is open source.
Windows, macOS, Linux, Command line	Web
No options to choose, so there is no insecure configuration to fall into Keys are short strings that fit in a password manager	Encryption and decryption happen locally in the browser Nothing to install
Command line only; there is no official graphical front end No key server or web of trust, so you exchange keys yourself	Research gives little detail on algorithms or file size limits Depends on a modern browser
Downloadable app	Web application
Open source	Open source
License: BSD-3-Clause	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 24, 2026

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