Number System Converter Online

When digging through memory dumps or configuring low-level network masks, you frequently need to jump between Binary, Decimal, Hexadecimal, and Octal formats. This Number System Converter is built to provide an instant, unified grid for all your base conversion needs.

Smart Parsing

Standard programming functions often break if you paste numbers with spaces or commas (like 1100 1010). This tool intelligently strips out human formatting characters before running the math, so you can paste raw data directly from your terminal logs.

High-Precision JavaScript

JavaScript handles large numbers poorly because of its 53-bit safe integer limit. To ensure you don't lose precision when converting massive 64-bit Hex strings or IPv6 addresses, the core logic uses the modern BigInt API to guarantee flawless mathematical accuracy regardless of the size.