~/tools

Developer Tools

A collection of useful utilities for everyday development tasks. Encode, decode, format, generate, and transform data right in your browser.

Encoding
Base64
Encode and decode Base64 strings
Formatting
JSON Formatter
Format, validate, and minify JSON data
Power user? See jsoncrack.com
Generator
UUID Generator
Generate UUIDs — v4, v7, v6, v1
Security
JWT Decoder
Decode and inspect JWT tokens
Encoding
URL Encoder
Encode and decode URL components
Security
Hash Generator
Generate SHA-1, SHA-256, SHA-512 hashes
Testing
Regex Tester
Test regular expressions with live matching
Power user? See regex101.com
Comparison
Text Diff
Compare two texts and view differences
Conversion
Unix Timestamp
Convert Unix timestamps to dates
Conversion
Color Converter
Convert between HEX, RGB, HSL colors
Power user? See colorhexa.com
Conversion
Number Base
Convert between binary, octal, decimal, hex
Generator
Password Generator
Generate secure random passwords
Encoding
HTML Entities
Encode and decode HTML entities
Power user? See html.spec.whatwg.org/multipage/named-characters.html
Media
Image Resizer
Resize, compress, and convert images
Generator
QR Code Generator
Generate QR codes from text or URLs
DevOps
Cron Builder
Build and explain cron expressions
Power user? See crontab.guru
Formatting
Markdown Preview
Live markdown editor with rendered preview
Power user? See marked.js.org
Conversion
JSON ↔ YAML
Convert between JSON and YAML formats
Conversion
CSV ↔ JSON
Convert between CSV and JSON formats
Formatting
SQL Formatter
Format and beautify SQL queries
Power user? See www.sqlformat.org
DevOps
Chmod Calculator
Unix file permissions calculator
Generator
Slug Generator
Generate URL-friendly slugs from text
Generator
Lorem Ipsum
Generate placeholder text
Reference
HTTP Status Codes
Searchable HTTP status code reference
Conversion
CSS Unit Converter
Convert between px, rem, em, vw, vh
Formatting
List / Line Converter
Convert lines to comma lists, SQL IN clauses, and more