.*Regex Tester
Regular expressions (regex) are a powerful tool for searching, extracting, and replacing patterns in text strings. They're used in a wide range of text processing tasks, including email validation, URL parsing, log analysis, and data extraction. However, the complex syntax can make writing and debugging difficult. This tool lets you test regular expressions in real time with visual match highlighting, so you can quickly verify that patterns work as intended.
How to Use
- 1Enter Pattern
Type your regular expression in the pattern input field at the top. Omit the slashes (/) โ just enter the pattern itself.
- 2Set Flags
Select the flags you need: g (global search), i (case-insensitive), m (multiline), etc. The 'g' flag is enabled by default.
- 3Enter Test String
Type or paste the text you want to test against in the lower area. Use the common pattern buttons (Email, URL, IP, etc.) for quick testing.
- 4Review Results
Matched portions are visually highlighted, and detailed match information (position, groups, etc.) is displayed below.
Tips
- ๐กUse the common pattern buttons (Email, URL, IP) to quickly apply frequently used patterns as a starting point.
- ๐กThe 'i' flag enables case-insensitive matching for more flexible searches.
- ๐กUse capture groups (parentheses) to extract specific portions of matched strings.
- ๐กFor complex regex patterns, test small pieces individually before combining them โ this makes debugging much easier.