Number Base Converter
Convert binary, octal, decimal, and hexadecimal values locally with validation and Unicode preview.
LocalNumber values stay in the browser while Toolars converts them.
4 basesSource-base validation catches invalid digits before output is trusted.
Number input
Enter a value and choose the source base for exact local conversion.
Converted bases
Add a number to convert it across supported bases.
Unicode preview
Decimal code points show a printable character when one is safe to preview.
CharacterNo printable character