Calculator
Your files never leave your device
Check your Network tab and see
Work starts the moment you drop a file
No daily limit, no sign-up, no watermark
The tool converts a whole number between base 10, base 2, and base 16 — the number systems behind everyday counting, digital logic, and colour or memory codes. It is a study aid for computer-science basics.
Conversion is for whole numbers. Fractional and floating-point representations follow different rules and are out of scope here.
That is the promise behind every tool here. Files are read in your browser tab, processed there, and discarded when you close it — never uploaded to our servers.
