All tools
50 developer utilities, grouped by category.
Format / Validate / Minify 10
JSON Formatter
Format, validate, and minify JSON.
HTML Beautify / Minify
Beautify or minify HTML.
CSS Beautify / Minify
Beautify or minify CSS.
JavaScript Beautify / Minify
Beautify or minify JavaScript.
ERB Beautify / Minify
Beautify or minify ERB / EJS templates.
LESS Beautify / Minify
Beautify or minify LESS.
SCSS Beautify / Minify
Beautify or minify SCSS / Sass.
XML Beautify / Minify
Beautify or minify XML.
SQL Formatter
Format SQL queries.
Line Sort / Dedupe
Sort, deduplicate, reverse, and shuffle lines.
Data Converter 16
URL / Query String Parser
Parse and inspect URLs and query strings.
YAML → JSON
Convert YAML to JSON.
JSON → YAML
Convert JSON to YAML.
Number Base Converter
Convert numbers between binary, octal, decimal, hex.
JSON → CSV
Convert JSON arrays to CSV.
CSV → JSON
Convert CSV to JSON arrays.
HTML → JSX
Convert HTML to React JSX.
String Case Converter
camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE.
PHP Array → JSON
Convert PHP array literals to JSON.
JSON → PHP Array
Convert JSON to PHP array literals.
PHP Serializer
Serialize JSON into PHP serialize() format.
PHP Unserializer
Parse PHP serialize() output back to JSON.
SVG → CSS
Convert SVG to a CSS data URI.
cURL → Code
Convert cURL commands to fetch / axios / Ruby / Python.
JSON → Code
Generate types/structs from JSON (TypeScript, Go, Rust, etc.).
Hex ↔ ASCII
Convert between hexadecimal and ASCII text.
Inspect / Preview / Debug 9
Unix Time Converter
Convert Unix timestamps to dates and timezones.
JWT Debugger
Decode and inspect JSON Web Tokens.
RegExp Tester
Test regular expressions with live highlighting.
HTML Preview
Render HTML in a sandboxed iframe.
Text Diff Checker
Compare two pieces of text and highlight differences.
String Inspector
Length, byte size, words, lines, code points.
Markdown Preview
Render Markdown to HTML in real time.
Cron Job Parser
Explain cron expressions and show next runs.
Color Converter
Convert between HEX, RGB, HSL, HSV, OKLCH.
Generators 6
Encoder / Decoder 6
Base64 String
Encode/decode Base64 text (UTF-8 safe).
Base64 Image
Encode/decode Base64 images and data URIs.
URL Encode / Decode
Percent-encode and decode URLs.
HTML Entity Encode / Decode
Encode/decode HTML entities.
Backslash Escape / Unescape
Escape/unescape backslash sequences.
X.509 Certificate Decoder
Decode X.509 / PEM certificates.