How I run Clang and the real Go compiler entirely in the browser
go
dev.to
Most online compilers work the same way: your code is sent to a server, compiled inside a container, and the output comes back. That works, but it means running a fleet of sandboxes, paying for them, rate-limiting them and trusting them with other people's code. For the online compilers on Devtoolry I went the other way: the compiler itself runs in your browser. C and C++ are compiled by Clang 21 and Go by the official Go 1.27 compiler and linker, all as WebAssembly inside a Web Worker. Nothing