Developer Tools – Online Utilities & Calculators
Developer-focused formatting, conversion, debugging, and text generation tools that run in the browser with no server-side code processing.
JSON Formatter & Validator
Professional developer utility to format, validate, and minify JSON with precise line/column syntax error detection and payload size statistics.
Regex Tester & Debugger
Experiment with regular expressions, inspect every matched occurrence and named capture group, and test replacements with zero server transmission.
JWT Decoder
Read a JSON Web Token header and payload locally. Decoding does not verify the signature.
HTML Formatter & Minifier
Beautify or minify HTML markup with before/after payload reduction metrics and client-side privacy.
CSS Formatter & Minifier
Format or minify CSS stylesheets in your browser with payload reduction statistics and zero server processing.
Unix Timestamp Converter
Translate epoch timestamps and ISO dates while showing UTC and local browser time.
Color Converter
Inspect and convert colors across all major web and print formats (HEX, RGB, RGBA, HSL, HSLA, HSV, CMYK) in real time with interactive preview.
Lorem Ipsum Generator
Generate predictable placeholder copy for layouts, prototypes, and content testing.
SQL Formatter
Turn dense SQL into a readable query using a lightweight dependency-free formatter.