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Wildcard vs Expressions: catalog facts
Wildcard	Expressions
Free Free and open source under the GPL-3.0-or-later licence.	Paid Commercial Mac app from Apptorium; see the website for current pricing.
Linux	macOS
Works offline unlike web regex testers Native GNOME interface	Live preview of matches while editing Library for saving expressions
Linux only Little published detail on supported regex flavours	macOS only Not open source
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-or-later	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 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.