Programming
15JSON Formatter
Pretty-print or minify JSON data.
JSON ↔ CSV
Convert between JSON arrays and CSV.
CSV Viewer / Editor
Render and edit CSV as an interactive table.
YAML ↔ JSON
Convert between YAML and JSON.
XML Formatter
Validate and pretty-print XML.
Color Converter
Convert colors between HEX, RGB, HSL, CMYK.
HTML Minifier
Strip whitespace and comments from HTML.
Code Diff Checker
Side-by-side diff of two code snippets.
Cron Expression Parser
Explain and validate cron expressions.
IP Address Info
Inspect an IP address: class, binary, subnet.
Subnet Calculator
Calculate subnet ranges from CIDR notation.
UUID Generator
Generate v4 UUIDs.
Password Generator
Generate strong random passwords.
Bitwise Operations
Perform AND, OR, XOR, NOT, bit-shift operations.
Luhn Algorithm
Validate or generate a check digit using the Luhn algorithm (credit cards, IMEI, etc).