Bug Reports & Feedback
Consider a donation
Become a sponsor
All settings to control the application are located here.
They are automatically saved as you change them and will be automatically loaded every time.
Jamstack at Scale
Max Execution Time
This setting affects how long the matcher will try to match your regex before it decides to give up
Always collapse left sidebar
Always collapse right sidebar
Show warning popup when trying to leave site with unsaved data
Use the default behavior for the tab key
The tab key will by default switch to the next field in the tabbing order. If this option is disabled, input areas for regex, substitution and test string will instead consume the tab key.
This setting adjusts the site-wide theme
Select the flavor you want to use when the site loads. Note: a saved entry's flavor will override this
Default code generator language
If left to automatic, the code generator will mirror the currently selected flavor in the editor
Enable or disable the syntax highlighting of your regular expression in the editor
Wrap Long Lines
Show Line Numbers in Regex Editor
Show Line Numbers in Test String Editor and Substitution Result
Show informative and helpful tooltips when hovering tokens in the regex editor
Visualize whitespace and other special characters
Show how many steps a regular expression takes to evaluate
If you are working on very large and complex expressions, turning this option off will yield improved performance
Include non-participating groups in match result
This setting determines whether groups in your regex, which did not match anything in the subject string, should be included in the results or not
Please wait while the app is loading...