Developer Tools That Just Work
26 essential tools for developers and creators. Fast, private, works for free. No signup required.
Text & Writing
5 tools.*
Regex Tester
Test regular expressions with real-time matching and group highlighting
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Diff Checker
Compare two texts side-by-side and highlight differences
MD
Markdown Preview
Write Markdown and see rendered HTML output in real time
Wc
Word Counter
Count words, characters, sentences, and estimate reading time
Aa
Case Converter
Convert text between UPPER, lower, camelCase, snake_case, and more
Data & Conversion
4 tools{ }
JSON Formatter
Format, validate, and minify JSON data with syntax highlighting
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Timestamp Converter
Convert Unix timestamps to human-readable dates and back
CSV
CSV / JSON Converter
Convert between CSV and JSON formats with live preview
SQL
SQL Formatter
Format and beautify SQL queries with keyword highlighting