Developer Tools
Handy utilities for developers: format, encode, test, convert, and generate.
JSON Formatter
Format and validate JSON with pretty print.
JSON → CSV
Convert JSON arrays to CSV.
CSV → JSON
Convert CSV data into JSON arrays.
HTML Encoder / Decoder
Escape and unescape HTML entities.
HTML Minifier
Minify HTML by removing comments and whitespace.
CSS Minifier
Minify CSS by removing whitespace and comments.
JavaScript Minifier
Minify JavaScript by removing comments and excess whitespace.
SQL Formatter
Format SQL queries for readability.
Regex Tester
Test regular expressions against sample text.
Cron Expression Generator
Build cron expressions with a friendly UI.
Unix Timestamp Converter
Convert between epoch and human-readable dates.
UUID Generator
Generate v4 UUIDs.
Hash Generator
Generate MD5 / SHA-1 / SHA-256 hashes.
JWT Decoder
Decode JWT payloads (no verification).
YAML → JSON
Convert YAML into JSON (simple cases).
Markdown → HTML
Convert Markdown to HTML.
QR Code Generator
Generate QR codes for URLs or text.
Barcode Generator
Generate Code128 barcodes from data.
IP Address Lookup
Basic IP info: v4/v6 detection and private/public check.
HTTP Status Codes
Lookup common HTTP status codes and messages.