Technology
Developer and technology utilities — JSON, Base64, URL encoding, hashing, regex testing, colour conversion, QR codes and timestamps. Your data never leaves your device.
20 free technology tools · No registration · Runs in your browser
QR Code Generator
PopularCreate a QR code for any text, URL or Wi-Fi network.
UUID Generator
Generate RFC 4122 version 4 UUIDs.
JSON Formatter
PopularFormat, validate and minify JSON with error reporting.
JSON Validator
Check whether your JSON is valid, and find the error.
JSON Minifier
Compress JSON to the smallest possible single line.
HTML Formatter
Beautify and indent messy HTML.
CSS Formatter
Beautify minified CSS into readable rules.
JavaScript Formatter
Re-indent JavaScript and JSON-like code.
Base64 Encoder
Encode text or files into Base64.
Base64 Decoder
Decode Base64 back to readable text.
URL Encoder
Percent-encode text for safe use in a URL.
URL Decoder
Decode a percent-encoded URL into readable text.
Color Converter
PopularConvert between HEX, RGB, HSL, HSV and CMYK.
HEX to RGB Converter
Convert a hex colour code to RGB, HSL and more.
RGB to HEX Converter
Convert RGB values to a hex colour code.
Regex Tester
PopularTest regular expressions with live match highlighting.
Hash Generator
Generate MD5-style, SHA-1, SHA-256 and SHA-512 hashes of text.
Markdown Previewer
Write Markdown and see it rendered live.
IP Information Tool
See the IP address and connection details your browser is using.
User Agent Parser
Decode your browser’s user-agent string.
Browse other categories
- Calculators
- Converters
- Finance
- Business
- Education
- Time & Date
- Health & Fitness
- Writing & Text
- Generators
- Travel
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