Number Base Converter
Convert between binary, octal, decimal, and hex
Number Base Converter is a free online tool from BrowserUtils that convert between binary, octal, decimal, and hex. It runs entirely in your browser — your data never leaves your device. No account required.
How to use Number Base Converter
- 1 Paste or type your input into the editor above.
- 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
- 3 Copy the result with one click or continue editing your input.
About Number Base Converter
Free online number base converter. Convert numbers between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16). This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
Number Base Converter specs
- Runtime
- 100% client-side (browser)
- Cost
- Free — no account, no rate limits, no usage caps
- Browser support
- Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
- Part of
- 299 developer tools on BrowserUtils (100% client-side)
Questions
How do I convert binary to decimal?
Enter your binary number (e.g., 11010110) into the binary field and the tool will instantly display the equivalent value in decimal, hexadecimal, and octal. Each digit in binary represents a power of 2.
What is hexadecimal and where is it used?
Hexadecimal (base 16) uses digits 0-9 and letters A-F to represent values. It is widely used in programming for memory addresses, color codes (e.g., #FF5733), and representing binary data compactly.
Can the number base converter handle large numbers?
The converter handles numbers within JavaScript safe integer range (up to 2^53 - 1). For typical programming and networking use cases, this covers all common values.
How do I convert hex to binary?
Enter your hexadecimal value into the hex field and the binary equivalent appears instantly. Each hex digit maps to exactly four binary digits, making the conversion straightforward.
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