Which bases are supported?

Any base from 2 to 36. Bases above 10 use letters A to Z for digits beyond 9.

Can I convert a whole column at once?

Yes. Put one value per line and every line is converted, keeping the original order.

Binary, Hex and Decimal Converter

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VALUES (ONE PER LINE)

From base

To base

CONVERTED

Convert numbers between binary, octal, decimal and hex — or any base from 2 to 36. One value per line. Free.

How to use Binary, Hex and Decimal Converter

Paste or type your contentThe result appears as you type — there is no submit button.
Set “From base”
Set “To base”
Read and copy the resultThe output updates live and the copy button takes it in one click.

Worked example

255 16 1024: FF 10 400

Nothing you enter leaves your device

All of the work happens inside your browser. Whatever you type is never packaged up and sent to a server, and no request this page makes carries it.

That makes it safe for contract amounts, personal details and internal documents you would rather not hand to a third party — close the tab and it is gone.

What this tool does not do

Binary, Hex and Decimal Converter only does what a browser can do on its own — it talks to no backend service. So it keeps no history for you and syncs nothing across devices; if you need a record, copy or download the result.

It is also not a substitute for professional judgement. For legal, medical or tax decisions, treat the output as a starting point rather than a final answer.

Frequently Asked Questions

Which bases are supported?: Any base from 2 to 36. Bases above 10 use letters A to Z for digits beyond 9.
Can I convert a whole column at once?: Yes. Put one value per line and every line is converted, keeping the original order.