FREE · DEVELOPER TOOLS
Number Base Converter.
Convert signed integers between bases 2, 8, 10 and 16 without floating-point rounding.
How to use Number Base Converter
Enter or choose the required input, adjust the settings, then generate and review the result. 255 in decimal becomes ff in hexadecimal.
How it works
Convert signed integers between bases 2, 8, 10 and 16 without floating-point rounding. Up to 4,096 digits; integer conversion only. Inputs stay on your device. Review the preview or output before using it; refresh the page to clear the current working session.
Example
255 in decimal becomes ff in hexadecimal.
Questions about Number Base Converter
Is Number Base Converter free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
Up to 4,096 digits; integer conversion only. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.