Programming Tools — 15 tools

JSON Formatter

Pretty-print or minify JSON data.

json pretty validate

JSON ↔ CSV

Convert between JSON arrays and CSV.

convert table data

CSV Viewer / Editor

Render and edit CSV as an interactive table.

csv table parse

YAML ↔ JSON

Convert between YAML and JSON.

yaml convert config

XML Formatter

Validate and pretty-print XML.

xml pretty validate

Color Converter

Convert colors between HEX, RGB, HSL, CMYK.

hex rgb hsl

HTML Minifier

Strip whitespace and comments from HTML.

minify compress html

Code Diff Checker

Side-by-side diff of two code snippets.

diff patch compare

Cron Expression Parser

Explain and validate cron expressions.

cron schedule linux

IP Address Info

Inspect an IP address: class, binary, subnet.

ip subnet cidr

Subnet Calculator

Calculate subnet ranges from CIDR notation.

cidr subnet network

UUID Generator

Generate v4 UUIDs.

uuid guid random

Password Generator

Generate strong random passwords.

password random secure

Bitwise Operations

Perform AND, OR, XOR, NOT, bit-shift operations.

AND OR XOR

Luhn Algorithm

Validate or generate a check digit using the Luhn algorithm (credit cards, IMEI, etc).

credit-card checksum validate