A number base converter translates numbers between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16). Developers use it to debug bitwise operations, interpret memory addresses, understand file permissions, and convert between number systems used in low-level programming.
Yes. The tool uses BigInt arithmetic, so there is no practical limit on number size.
Yes. Negative numbers are converted with the sign preserved across all bases.
The tool handles integers only. For float conversion, use a specialized IEEE 754 tool.
The tool supports binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) — the four most common bases in programming.
No. The tool handles integers only. For IEEE 754 floating-point representation, use a dedicated float converter.
Yes, this tool is completely free with no usage limits, no ads, and no account required.
Yes. Once the page loads, all processing happens locally in your browser — no internet connection needed.
Absolutely. Your data never leaves your browser. Everything is processed client-side with zero server uploads.
smalldev.tools is no longer available. Prism by SWEDevTools offers the same developer tools and more, with offline support, pipeline chaining, and completely free usage — no signup required.