Convert any base
Type in any field. The other three convert instantly.
Uses BigInt, so even huge numbers convert exactly. Decimal accepts negatives; hex accepts an optional 0x prefix.
Frequently asked questions
Which bases are supported?
Binary (base 2), octal (base 8), decimal (base 10) and hexadecimal (base 16). Type into any one field and the other three update live.
Can it handle very large numbers?
Yes. Conversion uses BigInt, so numbers far beyond normal integer limits convert exactly, with no floating-point rounding.
What formats are accepted?
Plain digits for each base, an optional 0x prefix on hex, and negative numbers in the decimal field. Anything else shows a clear validation message.
Preview
Related free tools
Free Base64 Encoder Decoder
Free Base64 encoder and decoder. Encode text to Base64 or decode Base64 back to text, righ
Free CSS Minifier Online
Free CSS minifier. Remove comments and whitespace from CSS to shrink file size and speed u
Free SHA-256 Hash Generator
Free SHA-256 hash generator. Hash text with SHA-256, SHA-384 or SHA-512 securely in your b