diff --git a/internal/cmd/wasm/main.go b/internal/cmd/wasm/main.go
index bff7177..907cf03 100644
--- a/internal/cmd/wasm/main.go
+++ b/internal/cmd/wasm/main.go
@@ -3,6 +3,7 @@ package main
 import (
 	"errors"
 	"fmt"
+	"strings"
 	"syscall/js"
 
 	promises "codeberg.org/danjones000/go-promises"
@@ -46,5 +47,9 @@ func main() {
 		return internal.GetUser(name.String(), age.Int()), nil
 	}))
 
+	js.Global().Get("String").Get("prototype").Set("toTitleCase", js.FuncOf(func(this js.Value, _ []js.Value) any {
+		return strings.Title(this.String())
+	}))
+
 	<-make(chan struct{})
 }