Number Base Converter — Binary, Hex, Decimal
Convert numbers between binary, octal, decimal, and hexadecimal.
💡 Number System Guide
- Decimal: Base 10, uses digits 0-9 (standard counting)
- Binary: Base 2, uses digits 0-1 (computer data)
- Octal: Base 8, uses digits 0-7 (file permissions)
- Hexadecimal: Base 16, uses 0-9 and A-F (colors, memory addresses)
Example: The decimal number 255 is 11111111 in binary, 377 in octal, and FF in hexadecimal.
Why Choose Our Client-Side Number Base Converter?
Perform calculations and utilities securely, quickly, and directly in your browser with 100% local client-side memory execution.
100% Secure & Local
Your data never leaves your device. All calculations, parsing, and formatting are performed locally in sandboxed client memory.
High-Fidelity Formats
Preserves values, parameters, settings, and configurations precisely during Number Base Converter.
Blazing Fast Speeds
Powered by client-side browser workers, updates happen instantly without upload delays or network queue times.
Process in Three Simple Steps
Provide Inputs
Paste, type, or drag & drop your raw values or files directly into the interface above.
Configure & Apply
Choose your conversion settings, custom formats, or parameters and review the real-time preview results.
Save Output
Instantly copy the finalized output to your clipboard or download it as a local file.
utilities_output
Ready for use
Frequently Asked Questions about Number Base Converter
Yes, Number Base Converter is 100% free with no sign-up, no watermarks, and no usage limits.
Yes. Files are uploaded over HTTPS, processed securely on our servers, and permanently deleted immediately after your download. We never store, view, or share your files.
You can upload files up to 1 MB. For larger files, consider compressing or splitting them first.
For text-based conversions there is no practical limit. The tool handles data up to several hundred kilobytes without issues.
Yes, Number Base Converter is fully responsive and works in all modern browsers on desktop, tablet, and mobile.