Developer Tools
Developer utilities for the browser: format and minify JSON, encode/decode Base64 and URL, generate hashes (MD5, SHA-1, SHA-256), QR codes, and inspect JWT tokens.
JSON Formatter
Format JSON for readability or minify it for production. Free in-browser tool that validates syntax live, pinpoints parse errors, and stays local.
JSON Validator
Validate JSON syntax, find formatting mistakes, and inspect structured data before using it in APIs, configs, or developer tooling.
JSON → XML
Convert JSON data to XML format quickly and accurately. Free in-browser tool — your data is processed locally, with no upload, signup, or watermark.
XML → JSON
Convert XML data to JSON format quickly and accurately. Free in-browser tool — your data is processed locally, with no upload, signup, or watermark.
JSON → YAML
Convert JSON objects and arrays into readable YAML with indentation preserved, useful for configs, APIs, and documentation workflows.
YAML → JSON
Convert YAML data to JSON format quickly and accurately. Free in-browser tool — your data is processed locally, with no upload, signup, or watermark.
Base64 Encode/Decode
Encode text to Base64 or decode it back to plain text. Free in-browser tool — handles UTF-8 (CJK, emoji) and Base64URL (JWT), all on your machine.
URL Encode/Decode
Encode or decode URL parameters, query strings, and reserved characters safely for links, APIs, redirects, and web debugging.
JWT Decoder
Decode JWT headers and payloads in the browser to inspect token claims, expiration times, issuers, and scopes without sending tokens to a server.
Hash Generator
Generate secure MD5, SHA-256, SHA-384, and SHA-512 hashes for any text input
SQL Formatter
Format SQL queries with readable indentation and line breaks, making SELECT, JOIN, WHERE, and INSERT statements easier to review.
CSV → JSON
Convert CSV data into clean JSON arrays with header detection, delimiter options, and automatic type conversion, all processed locally in your browser.
CSV → SQL
Convert CSV rows into SQL INSERT statements with configurable table names, escaped values, and browser-only processing for quick database imports.
HTML Minifier
Compress HTML by removing comments, whitespace, and redundant formatting so pages load faster while your code stays private in the browser.
CSS Minifier
Minify CSS by removing unnecessary spaces, comments, and line breaks to reduce stylesheet size and improve page loading performance in the browser.
JavaScript Minifier
Minify JavaScript code by stripping comments and extra whitespace to reduce file size before deployment, with all processing handled locally.
Code Beautifier
Format and beautify HTML, CSS, JavaScript, and JSON with adjustable indentation. Free in-browser beautifier — paste messy code, get readable output.
QR Code Generator
Generate QR codes from URLs, text, contact details, or Wi-Fi information, then download a clean image for sharing, print, or testing.
Color Picker
Pick colors visually and copy HEX, RGB, HSL, and CSS-ready values instantly. Compare shades and keep every color check local in your browser.
Diff Viewer
Compare two pieces of text or code line-by-line, with inline word-level highlights. Perfect for reviewing diffs without leaving the browser.
Regex Tester
Build and debug JavaScript regular expressions with live highlighting, capture groups, and replace preview.
Cron Expression Helper
Translate cron schedules to plain English (or your language) and preview the next execution times.
Mock Data Generator
Generate realistic fake data (names, emails, addresses, dates, UUIDs…) for development and testing. Export to JSON or CSV.