Online number base converter: convert between binary, octal, decimal, and hexadecimal.
TL;DR: Free online number base converter supporting binary, octal, decimal, and hexadecimal. Convert between all four bases instantly. Runs locally in your browser, no registration required.
This tool runs entirely in your browser. Open DevTools → Network panel and search your input — it appears in no request.
FAQ
Completely free, no registration required. Convert number bases directly in your browser — all operations run locally with no usage limits.
It supports conversion between binary (Base 2), octal (Base 8), decimal (Base 10), and hexadecimal (Base 16). Enter one base to automatically get results in all others.
No. All base conversions run locally in your browser. No data is sent to any server.
Hexadecimal is commonly used for memory addresses, color values (e.g., #FF5733), character encoding (e.g., Unicode), MAC addresses, and more — a frequently used format in programming and network debugging.
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