Regex Tester & Generator – Test & Create Regular Expressions Online Free

Free online Regex Tester & Generator tool to test and create regular expressions for development and validation. Instantly test regex patterns, generate regex, and debug with advanced options. No signup required. Mobile-friendly.

Input Section

Test String Add the text you want to test.

Regex Pattern Enter a valid regular expression pattern.

Select Text File Select a valid text file. Max file size: 5MB

Regex Pattern Enter a valid regular expression pattern.

Text File URL Enter a valid URL to a text file.

Regex Pattern Enter a valid regular expression pattern.

Quick Examples

Match Count:

Pattern Valid:

Flags:

Matches

Input Section

Quick Examples

Output Section