V Programming Language

Run everywhere V can compile to (human readable) C, so you get the great platform support and optimization of gcc and Clang. Performance As fast as C Minimal amount of allocations Built-in serialization without reflection

The entire V language and its standard library is less than 400 KB. Such builds are compiled ≈150 times slower than V development builds (but are still faster than C++ builds).

Source: vlang.io