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GNU Grep vs tgrep: catalog facts
GNU Grep	tgrep
Free Free software from the GNU Project with no paid tier.	Free Free and open source under the MIT licence.
Linux, Command line	Windows, Command line
Installed by default on most Linux systems Thorough documentation via man, info and online manual	Index makes repeated searches over large codebases fast Regular expression search
Slower on large codebases than tools like ripgrep or ugrep Does not skip ignored files or directories by default	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: GPL-3.0-or-later	License: MIT
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.