Developer Tools & Utilities

Beautify, validate, and minify JSON instantly with syntax highlighting and a tree view. Everything runs securely in your browser.

Validate, format, beautify, and minify JSON code instantly. Find syntax errors and parse payloads locally with 100% private processing.

Encode plain text or files to Base64, or decode Base64 strings back to readable text — instantly, without sending data to any server.

Encode or decode URLs, URI parameters, and query strings. Parse query params into editable tables with bulk line-by-line processing.

Generate secure UUID v4 identifiers for applications, databases, APIs, and distributed systems in one click.

Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes from text or files. HMAC support included. 100% private, browser-based.

Decode JSON Web Tokens instantly to inspect the header, payload, and expiration claims, entirely in your browser with no token ever leaving your device.

Test regular expressions against sample text with live match highlighting, capture groups, and flag toggles, all processed locally in your browser.

Build and parse cron expressions with a visual schedule builder, plain-English descriptions, and upcoming run times, no server required.

Convert JSON arrays into CSV spreadsheets or CSV files back into JSON, with nested object flattening handled automatically in your browser.

Convert Unix timestamps to human-readable dates and back, in any timezone, with a live current-epoch clock, fully client-side.

Convert colors between HEX, RGB, HSL, and CMYK instantly with a live color preview, ideal for developers and designers alike.

Encode special characters into HTML entities or decode entities back into readable text, processed instantly in your browser.

Convert numbers between binary, octal, decimal, and hexadecimal instantly, with support for custom bases up to 36.

Convert YAML configuration files into JSON or JSON back into YAML instantly, with syntax error detection, fully processed in your browser.

Beautify, minify, and validate XML documents instantly with clear syntax error messages, all processed locally in your browser.

Beautify and format messy SQL queries into clean, readable statements with consistent indentation, supporting multiple SQL dialects.

Write Markdown and see a live-rendered preview side by side, then export clean HTML, entirely inside your browser.

Generate custom QR codes for URLs, text, Wi-Fi credentials, and contact cards instantly, downloadable as PNG or SVG.

Convert between px, rem, em, percent, and point values instantly for responsive CSS layouts, with an adjustable base font size.

Paste any JSON object and instantly generate matching TypeScript interfaces with correctly inferred nested types and arrays.

Calculate network address, broadcast address, usable host range, and subnet mask from any IPv4 CIDR notation instantly.

Compare two JSON documents and instantly highlight every added, removed, and changed key or value, ignoring formatting differences.

Minify or beautify JavaScript, CSS, and HTML code instantly, reducing file size or restoring readable formatting in one click.