Developer tools that just work.
Fast, no-nonsense utilities for everyday development. Everything runs locally in your browser.
JSON Formatter
Format, validate, and beautify JSON instantly in your browser.
Regex Tester
Test and debug regular expressions with live match highlighting.
JWT Decoder
Decode and inspect JSON Web Tokens instantly.
Cron Builder
Build cron expressions visually or decode existing ones into plain English.
Base64 / URL Codec
Encode or decode Base64 and URL strings instantly.
Hash / UUID Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes and UUIDs.
Lorem Ipsum Generator
Generate placeholder text by paragraphs, sentences, or words.
Markdown Previewer
Write Markdown and see the rendered HTML side by side, live.
Timestamp Converter
Convert Unix timestamps to human-readable dates and back.
Color Converter
Convert colors between HEX, RGB, HSL, and see a live preview.
Diff Checker
Compare two blocks of text and see exactly what changed.
Case Converter
Convert text between camelCase, snake_case, kebab-case, and more.
URL Parser
Break a URL into its parts, or build a query string from key/value pairs.
Slug Generator
Turn any text into a clean, URL-safe slug.
HTML Entity Codec
Encode text to HTML entities or decode entities back to text.
YAML / JSON Converter
Convert between YAML and JSON instantly, in both directions.
CSV / JSON Converter
Convert between CSV and JSON instantly, in both directions.
QR Code Generator
Generate a downloadable QR code from any text or URL.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal.
Password Checker
Check password strength and generate strong random passwords.
Word Counter
Count words, characters, sentences, and reading time instantly.
SQL Formatter
Format and beautify messy SQL queries instantly.