Compare software

fff vs tgrep: catalog facts
fff	tgrep
Best for: Developers and AI agents searching very large codebases	Best for: Developers who search very large repositories many times a day
Free Free to use under the MIT licence.	Free Free and open source under the MIT licence.
Windows	Windows, Command line
Searches file names and contents without building an index Shown working on repositories of tens of millions of lines All 3 strengths for fff Searches file names and contents without building an index Shown working on repositories of tens of millions of lines Integrations aimed at AI agents, Neovim, Rust, C and Node.js	Index makes repeated searches over large codebases fast Regular expression search All 4 strengths for tgrep Index makes repeated searches over large codebases fast Regular expression search Runs entirely locally Actively maintained by Microsoft
Little documentation on its homepage Aimed at developers rather than general desktop file search	Needs a background server and index, unlike plain grep or ripgrep Benefit is mainly on very large codebases
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for fff fff.dmtrkovalenko.dev Catalog checked October 2, 2026	Official website Full listing and sources Sources for tgrep github.com/microsoft/tgrep Catalog checked October 2, 2026

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