Tool Categories
50 free developer tools organized into 9 categories.
.*
Regex
8 tools
Test, debug, and learn regular expressions with interactive tools and references.
Regex TesterRegex CheatsheetRegex to String GeneratorCommon Regex Patterns+4 more
#
CSS
10 tools
Generate CSS gradients, shadows, grids, animations, and more with visual editors.
CSS Gradient GeneratorCSS Box Shadow GeneratorCSS Border Radius GeneratorCSS Flexbox Generator+6 more
{}
JSON
5 tools
Format, validate, minify, convert, and query JSON data with ease.
JSON FormatterJSON ValidatorJSON MinifierJSON to TypeScript+1 more
◉
Colors
5 tools
Convert color formats, check contrast, and generate palettes.
Color ConverterColor Contrast CheckerColor Palette GeneratorColor Shades Generator+1 more
T
Text
6 tools
Count words, convert case, diff text, and generate placeholder content.
Word CounterCase ConverterLorem Ipsum GeneratorText Diff Checker+2 more
⇄
Encoding
5 tools
Encode and decode Base64, URLs, HTML entities, JWT, and hashes.
Base64 Encoder / DecoderURL Encoder / DecoderHTML Entity EncoderJWT Decoder+1 more
⏱
Time
4 tools
Convert timestamps, timezones, dates, and build cron expressions.
Unix Timestamp ConverterTimezone ConverterDate Duration CalculatorCron Expression Generator
123
Numbers
4 tools
Convert number bases, calculate bits/bytes, percentages, and Roman numerals.
Number Base ConverterBit & Byte CalculatorPercentage CalculatorRoman Numeral Converter
</>
HTML
3 tools
Beautify, minify, and convert HTML to other formats.
HTML BeautifierHTML MinifierHTML to Markdown
🔐
Crypto
0 tools
Generate cryptographic hashes and work with encoding schemes.