Convert a number base

Binary, octal, decimal and hex, all at once.

Stays on this device

Need more than one change? Chain tools together →Something not right? Tell us

Your number

Number

In every base

255

Bin: 11111111
Oct: 377
Dec: 255
Hex: FF

Send this to another tool

Related tools

Spreadsheet to JSON — Turn CSV rows into JSON objects.
JSON to spreadsheet — Turn a JSON list into CSV rows.
Base64 scrambler — Turn text into base64 and back.
Make text link-safe — Encode text for use in a web address.