JSON, XML, YAML, SQL, regex, hashing, encoding, and the everyday utilities developers reach for — plus password strength and generation.
Generate a Code128, EAN-13, or UPC-A barcode and download it.
Convert text to and from Base64 instantly, both directions.
Convert CSV to JSON or JSON to CSV, handling quoted fields correctly.
Beautify or minify HTML, CSS, or JavaScript.
Get MD5, SHA-1, SHA-256, and SHA-512 hashes of any text at once.
Pretty-print, minify, and validate JSON with clear error locations.
See which words and phrases appear most in your content.
Write Markdown on the left, see rendered HTML on the right, live.
Create strong random passwords with adjustable length and character sets.
See how strong a password is and get specific ways to improve it.
Turn any link or text into a downloadable QR code, no watermark.
Scan a QR code with your camera or by uploading an image.
Test a regular expression against sample text with live highlighting.
Generate a ready-to-upload robots.txt with crawler rules.
Pretty-print a messy SQL query with proper line breaks.
Generate a ready-to-upload sitemap.xml from a list of URLs.
Encode or decode URLs and HTML entities, both directions.
Generate one or hundreds of random version-4 UUIDs, in the format you need.
Pretty-print and validate XML with proper indentation.
Convert XML to JSON or JSON to XML instantly.
Convert YAML to JSON or JSON to YAML instantly.