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Regex Tester & Debugger

Test and debug regular expressions in real time with match highlighting, capture group visualization, and a quick-reference cheat sheet.

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Find & Replace

Common Patterns

Regex Cheat Sheet

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ASCII Table

An interactive and searchable ASCII table with decimal, hex, octal, binary, and HTML entity representations.

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Chmod Permissions Calculator

An interactive calculator to generate and understand Linux file permissions (chmod) in numeric and symbolic formats.

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CSV to HTML Table

Convert tabular CSV or Excel data directly into clean, semantic HTML <table> markup.

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CSV to SQL Converter

Convert CSV or Excel data into SQL INSERT statements instantly, ready to be executed in your database.

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