Standard Go Wasm offers full compatibility for web apps, while TinyGo Wasm provides minimal binaries for embedded devices.
Use standard Go Wasm for full standard library compatibility and performance, or TinyGo Wasm for minimal binary size and embedded device support. Standard Go Wasm requires the GOOS=js and GOARCH=wasm flags, while TinyGo uses the --target wasm flag.
# Standard Go Wasm
GOOS=js GOARCH=wasm go build -o main.wasm main.go
# TinyGo Wasm
tinygo build -o main.wasm -target wasm main.go
Standard Go Wasm is like a full-sized car: it has every feature and runs fast on the highway (the web), but it's heavy. TinyGo Wasm is like a bicycle: it's tiny and perfect for tight spaces (embedded chips), but you can't carry as much cargo (library support). Choose the full car for web apps and the bike for microcontrollers.