Endianness / byte-order visualizer
See how the same integer or float is laid out in bytes under little-endian and big-endian, with the IEEE-754 sign/exponent/mantissa breakdown. Runs entirely in your browser.
Big-endian (network byte order)
Little-endian (x86 / ARM default)
IEEE-754 field breakdown
Computed locally in your browser. This shows how the SAME value is laid out in bytes under each byte order. · Try:
What this shows
- Byte order — the identical value written little-endian (x86/ARM default) and big-endian (network byte order).
- IEEE-754 fields — for floats, the sign bit, biased exponent and mantissa, so you can see why
0.1is not exact. - Widths — 16/32/64-bit integers and 32/64-bit floats.
Related reading: endianness in practice, and struct padding and alignment.