Convert between formats, units, and representations.
Convert between Unix timestamps, CSS units, number bases, image/Base64, and common measurement units. Fast, local, and unlimited.
Convert between Unix timestamps and human-readable dates.
Convert images to Base64 data URIs and Base64 strings back to images.
Convert between units of length, weight, temperature, and data size.
Convert numbers between decimal, binary, hexadecimal, and octal.
Convert between px, rem, em, vh, and vw with configurable base size.
Convert between YAML and JSON bidirectionally. All processing in your browser.
Convert between CSV and JSON, with header control. Fully in-browser.
Convert between XML and JSON, or just format XML. Fully in-browser.
Convert a date/time across multiple timezones at once. All client-side.
Yes. Conversion factors use standard-defined values (e.g. 1 inch = 25.4 mm exactly). Temperature conversions use the standard formulas.
Most converters take single values; however, they're fast enough to run many conversions in succession. For batch work, consider scripting.