Number Base Converter
Enter a number to see conversions across all bases.
Enter a number and pick its base. All conversions update live.
- Select the base of your input number
- Type or paste the number (prefixes like 0x, 0b, 0o are optional)
- See binary, octal, decimal, and hex update instantly
- Copy any output or share a link
Is my data safe?
Yes. All conversions run in your browser using BigInt. No data is ever sent to a server.
Which bases are supported?
Supported bases: binary (2), octal (8), decimal (10), and hexadecimal (16). Hex output is uppercase.