hypercast

https://github.com/SkunkWerkx/HyperCast

Booleans, numerics, exact decimals, UUIDs, and temporals cast from untrusted text by a native Rust core — every parse returns a verdict (the value, or a reason plus the offending span), never an exception for bad data. Three backends behind one surface, selected automatically and all shipped prebuilt: a Magnus extension where a precompiled platform gem matches, stdlib Fiddle everywhere else, and the same core as a WebAssembly module for anyone who installs the wasmtime gem. No runtime bridge, no dependencies beyond Fiddle.