IEEE 754 API
Inspect and build IEEE 754 floating-point numbers — see exactly how a number is stored in the bits. The encode endpoint takes a number and decomposes its single (32-bit) or double (64-bit) representation into the sign bit, the raw and unbiased exponent, the mantissa, the full binary layout split into sign / exponent / mantissa, the hexadecimal word, and a classification (normal, subnormal, zero, infinity or NaN); for single precision it also returns the actual value after rounding, so you can see floating-point error directly. The decode endpoint goes the other way — give it a hex word or a 32-/64-bit binary string and it returns the number it represents along with the same field breakdown. It accepts inf, -inf and nan, and lays bytes out big-endian. Everything is computed locally and deterministically, so it is instant and exact. Ideal for systems and embedded programming, teaching how floats work, debugging precision and rounding bugs, binary protocols and file formats, and interview prep. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This inspects floating-point bits; for integer base conversion use a base-convert API.
api.oanor.com/ieee754-api
