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Binary, Decimal & HEX Converter

Translate signed integers between common number bases for debugging, bit work, permissions and low-level data inspection.

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FIELD NOTES

How number bases relate

Binary uses two digits, octal eight, decimal ten and hexadecimal sixteen. They are different written representations of the same integer value.

This converter handles integers with BigInt. Fractions and language-specific fixed-width overflow rules are intentionally excluded.

REFERENCE

Common questions

How is the input base detected?

Prefixes 0b, 0o and 0x select binary, octal and hexadecimal; unprefixed input is decimal.

Does this tool upload my input?

No. Processing uses browser APIs and the input is not sent to our server.