Compare software

ugrep vs fff: catalog facts
ugrep	fff
Free Free and open source.	Free Free to use under the MIT licence.
Windows, macOS, Linux, Command line	Windows
Compatible with grep options Interactive text interface for building queries	Searches file names and contents without building an index Shown working on repositories of tens of millions of lines
Large option set takes time to learn Interactive interface is terminal-only	Little documentation on its homepage Aimed at developers rather than general desktop file search
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	License: MIT
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 23, 2026	Official website Full listing and sources Checked October 2, 2026

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