Tools
Free, browser-based utilities — no signup required. Pick a tool and get started.
Convert length, weight, volume, area, speed, temperature, and data with live results.
Convert numbers between binary, octal, decimal, hex, and any base 2–36.
Live encode and decode text or files to Base64 in your browser.
Convert between HEX, RGB, and HSL with sliders and CSS-ready copy.
Convert Unix timestamps to dates and back. Supports ISO and local time.
Live percent-encode or decode URL components and full URLs.
Convert date and time between time zones with presets, live results, and offset differences.
Convert CSV to JSON and JSON to CSV, with custom delimiters.
Convert Arabic numbers and Roman numerals from 1 to 3999 with live results and a symbol reference.