Tools for developers,
by developers.
Fast, offline-ready utilities for everyday developer tasks. No ads, no accounts, no nonsense.
Generators
Formatters
JSON Formatter
Prettify, minify, validate & sort JSON
formatter
XML Formatter
Format & minify XML documents
formatter
SQL Formatter
Format SQL queries with syntax highlighting
formatter
CSS Formatter
Format & minify CSS stylesheets
formatter
HTML Formatter
Indent & prettify HTML markup
formatter
Markdown Preview
Live Markdown to HTML renderer
formatter
Diff Checker
Line-by-line text comparison
formatter
Encoders
Converters
Number Base
Binary, octal, decimal, hex
converter
Timestamp
Unix ↔ human-readable time
converter
JSON ↔ YAML
Convert between JSON and YAML
converter
CSV ↔ JSON
Convert CSV to JSON and back
converter
Color Converter
HEX ↔ RGB ↔ HSL conversion
design
Unit Converter
Length, weight, temp, data, speed
converter
Text Case
camelCase, snake_case, kebab-case…
converter
Dev Tools
Regex Tester
Live regex match highlighting
dev tool
Cron Expression
Parse & explain cron schedules
dev tool
JSONPath Tester
Query JSON with $path expressions
dev tool
cURL Builder
Build cURL commands visually
dev tool
.gitignore Gen
Generate .gitignore for any stack
dev tool
.env Parser
Parse .env files into a clean table
dev tool
Text Analyzer
Words, chars, readability stats
dev tool
String Operations
Reverse, slug, repeat, trim…
dev tool
Design
Reference
Port Reference
TCP/UDP port guide — 50+ entries
reference
HTTP Status Codes
All HTTP status codes 1xx–5xx
reference
MIME Types
File extension to MIME type map
reference
HTTP Headers
Request & response headers guide
reference
Git Cheatsheet
45 Git commands with descriptions
reference
Linux Commands
Essential Linux command reference
reference