Free Online Converters
Free online converters for units, colours, number bases, timestamps and data formats like JSON, YAML, CSV and XML. Instant results, no sign-up.
Available now
JSON to CSV Flatten JSON arrays into a clean CSV spreadsheet JSON to YAML Convert JSON to clean, readable YAML YAML to JSON Turn YAML into JSON and catch indentation mistakes Timestamp Converter Convert Unix timestamps to dates and back, any timezone Text to Binary Convert text to binary, hex or octal and back Unit Converter Length, weight, temperature, area, volume and speed Color Converter Convert colours between HEX, RGB, HSL and OKLCH Number Base Converter Convert between binary, octal, decimal and hexadecimal QR Code Generator QR codes for URLs, Wi-Fi, contacts and text as SVG or PNG
Frequently asked questions
How accurate are the unit conversions?
Conversions use exact SI definitions and are shown to a configurable number of decimal places.
Do the data format converters change my values?
No. Converting between JSON, YAML, CSV and XML preserves every value. Only the representation changes.