Does it support fractions?

No. This converter is integer-only for precise arbitrary-length conversions.

Can I convert negative numbers?

Yes. Signed integers are supported across all bases 2-36.

Yes. All parsing and conversion happen in your browser.

ADVERT

🔁 Base Converter

Convert numbers between bases 2-36, including binary, octal, decimal, and hexadecimal, with clear formatting for long values and developer-friendly output.

Base Converter

Convert integers between bases 2-36 with precise BigInt parsing, auto prefix detection, grouped output formatting, and conversion reports.

From base

To base

Digit group size

Auto-detect 0x / 0b / 0o input prefixes Uppercase alphabetic digits Prefix binary/octal/hex output

Input value

Output (base 16) FF

Base	Output
2	`1111 1111`
8	`377`
10	`255`
16	`FF`
36	`73`

How to use this tool

Set source/target bases and formatting options.
Enter an integer value and review converted output + common-base table.
Copy result or export JSON for audit/replay workflows.

Precision

Parsing and conversion are BigInt-based, so large integers remain exact.
Invalid digits are validated against the effective input base.
Prefix auto-detection supports 0x, 0b, and 0o inputs.

Formatting

Group size improves readability for long binary/hex values.
Prefix and case controls align outputs with coding standards.
Common-base table reduces repeated manual conversions.

FAQ

Does it support fractions?: No. This converter is integer-only for precise arbitrary-length conversions.
Can I convert negative numbers?: Yes. Signed integers are supported across all bases 2-36.
Is conversion local?: Yes. All parsing and conversion happen in your browser.