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Number Base Converter - Binary Decimal Hex Octal Online Free | The MuffinPost
Free Developer Converter

Number Base Converter

Convert numbers between binary, decimal, hexadecimal, octal and custom bases. Supports bases from 2 to 36 and runs fully in your browser.

Convert Number Base

Use digits 0-9 and letters A-Z for bases above 10.
Original number base.
Target number base.
Common Bases Binary = Base 2 uses 0 and 1
Octal = Base 8 uses 0 to 7
Decimal = Base 10 uses 0 to 9
Hexadecimal = Base 16 uses 0 to 9 and A to F

Result

FF 255 in base 10 equals FF in base 16
Binary11111111
Octal377
Decimal255
HexadecimalFF

How to Use the Number Base Converter

Convert number systems in three simple steps.

1. Enter number

Paste or type the number you want to convert.

2. Choose bases

Select the source base and the target base from 2 to 36.

3. View result

See the converted result plus binary, octal, decimal and hexadecimal equivalents.

Fast base conversion for developers and students.

This Number Base Converter helps programmers, students, engineers and digital logic learners convert between binary, decimal, hexadecimal, octal and custom bases without installing software.

✅ Convert binary, decimal, hex and octal
✅ Supports custom bases from 2 to 36
✅ Instant browser-based conversion
✅ Great for programming and computer science

Number Base Converter FAQ

Common questions about number base conversion.

What is binary?

Binary is base 2. It uses only two digits: 0 and 1.

What is hexadecimal?

Hexadecimal is base 16. It uses digits 0 to 9 and letters A to F.

Can I convert custom bases?

Yes. This converter supports any base from 2 to 36.

Does this converter use a backend?

No. All number base conversions run directly in your browser with HTML, CSS and JavaScript.