Number Base Converter

Convert between Binary, Octal, Decimal, and Hexadecimal

Binarybase 2

Octalbase 8

Decimalbase 10

Hexadecimalbase 16

Binary (base 2) — digits: 0, 1Octal (base 8) — digits: 0–7Decimal (base 10) — digits: 0–9Hexadecimal (base 16) — 0–9, A–F

Common Values

Click a row to load that value.

Base64 Encoder

Encode or decode text and data to Base64 format.

URL Encoder

Encode or decode URL parameters to make them browser-safe.

Hash Generator

Generate MD5, SHA1, SHA256 cryptographic hashes from any string.