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.