Base Converter

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Input number (integer, bases 2~36 only)

Source base

Target base

Conversion Results

Binary (2)

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Octal (8)

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Decimal (10)

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Hex (16)

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Target base result

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Note: this version supports integers only. Decimal support can be added on request.

About This Tool

The Base Converter supports conversion between bases 2~36, ideal for programming, algorithm study, and data inspection, with quick copy of common bases.

Input and conversion run entirely in your browser — no data is uploaded. Input validation and error hints keep usage safe and smooth.

Features

Supports bases 2~36

Covers common bases — binary, octal, decimal, hex — plus a custom target base.

Quick copy

Each result card has a copy button for easy paste and share.

Input validation

Error hints and delimiter handling prevent failures from invalid input.

Local processing

All conversion logic runs locally in your browser — private and under your control.

Tips

Integer input only; spaces and underscores are allowed as separators.
Source base digits: 0–9 and A–Z map to 10–35, case-insensitive.
Hex output is uppercase by default; custom bases follow the toString(base) rules.
Very long values may affect performance; convert in chunks or reduce live updates if needed.
Copy buttons copy the current card's result; nothing happens when there is no result.

How to use the Base Converter

1.Enter a number in the input box.
2.Choose the input base (or let it auto-detect).
3.View the value converted across common bases — binary, octal, decimal, and hex.
4.Copy any result you need.

Base Converter FAQ

What bases does this converter support?

Bases 2 through 36, covering binary, octal, decimal, hexadecimal, and beyond.

What's the difference between bases?

A base (or radix) is how many digits a numeral system uses. Binary is base 2, decimal is base 10, and hexadecimal is base 16.

Can I convert to binary and hex at once?

Yes. The tool shows the common bases at the same time, so you can copy the value you need without repeated conversions.

Is the conversion done on your servers?

No. Every conversion runs locally in your browser, so the numbers you enter never leave your machine.