Number Base Converter
Number → All Bases
Convert numbers between binary, octal, decimal, and hexadecimal
About this tool
About Number Base Converter
Number Base Converter is a free, browser-based tool that lets you convert numbers between binary, octal, decimal, and hexadecimal. It supports Number → All Bases. Everything runs locally on your device, so your files are never uploaded to a server. There's no sign-up, no watermark, and no limit — just open Number Base Converter, add your input, and get results instantly.
How to use Number Base Converter
1
Select input base
Choose Binary, Octal, Decimal, or Hexadecimal as the input base.
2
Enter your number
Type a valid number in the selected base.
3
View all bases
See conversions to all four bases simultaneously with copy buttons.
Key features
Math Utility
Switch between Hex, Binary, and Decimal.
Browser Based
No software installation required. Everything runs locally.
Completely Free
No hidden limits or premium paywalls.
100% Private
Number Base Converter processes your data locally in the browser. Nothing is uploaded, tracked, or stored u2014 your files never leave your device.
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