Number Base Converter
Convert integers between decimal, binary, octal and hexadecimal. Instant, private, in your browser.
🔒 Everything runs in your browser. Nothing is uploaded.
Examples
255 | 11111111 | to binary |
255 | ff | to hex |
255 | 377 | to octal |
1010 | 10 | from binary |
How it works
Available operations: Dec → Binary, Dec → Octal, Dec → Hex, Binary → Dec, Octal → Dec, Hex → Dec.
Everything runs locally with the same code that passes our automated correctness tests — no server, no upload.