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Binary, Decimal, Hexadecimal and Octal Converter

Type a number in any base (binary, octal, decimal, hexadecimal or base 36) to instantly get its value in the others. Also convert text to binary code and back.

🔗 Direct link sahlify.uk/en/binary-hex-converter/

How does it work?

Type or paste your data.
The result appears instantly.
Copy or download the result.

Why use Binary / Hex Converter?

✓ 100% free, no limits, no watermark
✓ No sign-up, no install
🔒 Files processed locally: full privacy
📱 Works on desktop, tablet and mobile

Frequently asked questions

Is there a size limit?

No, very large numbers are handled without losing precision.

Does text-to-binary handle accents and Arabic?

Yes, it's encoded as UTF-8.

What is the maximum size?

Large numbers are supported through arbitrary-precision arithmetic.

What is base 36 for?

Producing short IDs with digits and letters, e.g. for short links.

Is this tool really free?

Yes, 100% free, with no sign-up, no watermark and no usage limit.

Are my files safe?

Yes. Processing happens directly in your browser: your files are never uploaded to a server or stored.

When to use it

The base converter helps computer science and electronics students, developers and the curious switch between binary, octal, decimal and hexadecimal, read a HEX colour or translate text into binary.

Our tips

💡 Each hex digit equals 4 bits: F = 1111.
💡 A byte (8 bits) is written with 2 hex digits (00 to FF).
💡 Text in binary uses each character's UTF-8 code.