Regex Tester

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Built by @shashankshet

Free Online Regular Expression Tester

Our Regex Tester is an essential online tool for developers and data analysts who work with regular expressions (regex). This tool provides an interactive environment to write, test, and debug your regex patterns against any text. It is invaluable for tasks such as data validation, text parsing, and string manipulation. By using ouronline regex tester, you can quickly visualize your pattern matches, understand capture groups, and refine your expressions to ensure they work as expected.

How to Use the Regex Tester

Using our regex pattern tester is a quick and straightforward process. Just follow these steps:

  1. Enter Your Pattern: Type or paste your regular expression into the pattern field. The tool supports common flags like global (`g`), case-insensitive (`i`), and multiline (`m`).

  2. Input Your Text: Paste the text you want to test the pattern against into the input text area.

  3. Analyze the Results: The tool instantly highlights all matches, displays capture groups, and shows detailed information about your regex. You can then refine your pattern based on the results.