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Wildcard vs regex101: catalog facts
Wildcard	regex101
Free Free and open source under the GPL-3.0-or-later licence.	Freemium Free to use, with a paid Pro upgrade and enterprise option.
Linux	Web
Works offline unlike web regex testers Native GNOME interface	Plain-language explanation of a pattern as you type Supports PCRE2, JavaScript, Python and other flavors
Linux only Little published detail on supported regex flavours	Requires a browser and internet connection Some features require a Pro upgrade
Downloadable app	Web application
Open source	Closed source
License: GPL-3.0-or-later	License not stated
No account needed	No account needed
Works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 24, 2026

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