Number Base & Base64 Converter

Convert between Decimal, Hexadecimal, Binary, Octal, and encode/decode UTF-8 Base64 strings.

Number Base Converter (Radix)

Decimal Integer (Base-10)

Hexadecimal (Base-16)

0xFF

Binary (Base-2)

11111111

Octal (Base-8)

0o377

Plain Text to Encode

Encoded Base64 String

Q2FsY0tpd2k=

Base64 to Decode

Decoded UTF-8 Text

...

175 available

Annuity and differentiated monthly installments, interest breakdown, and amortization schedule.

Calculate PITI (Principal, Interest, Taxes, Insurance), PMI, and accelerated payoff savings.

Visualize compound growth with recurring deposits, annual rate, and investment horizons.

Add or extract Value Added Tax (VAT) with international country presets.

Analyze profitability and percentage return on business capital and investments.

Gross to net salary with income tax, social contributions and deductions, monthly and annual.

Convert numbers between decimal, hex, binary and octal, plus UTF-8 text to Base64 encoding and back.

What is Base64?

A way to pack binary data into safe ASCII text, used in emails, data URLs and tokens.

Hex vs decimal?

Hex is base-16 shorthand for binary, two digits per byte; programmers read memory and colors in hex.

Why the 0x prefix?

A convention marking a literal as hexadecimal in C-like languages.