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About Regex101
Regex101 is an online tool designed to help developers and anyone working with text patterns to create, test, and debug regular expressions. It provides a highly interactive environment where users can input their regex and test strings, receiving instant feedback on matches, substitutions, and a detailed explanation of how the regex works. This real-time analysis helps users understand complex patterns and identify errors quickly. The platform supports various regex flavors, including PCRE2, PCRE, ECMAScript, Python, Golang, Java, and .NET, making it versatile for different programming environments. Beyond basic testing, it offers advanced features like a code generator to export regex into different languages, a debugger to step through regex execution, and a benchmark tool to evaluate performance. It's ideal for developers, data scientists, and anyone needing to master or efficiently use regular expressions.
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