diff --git a/web/README.md b/web/README.md
new file mode 100644
index 0000000..9b5f091
--- /dev/null
+++ b/web/README.md
@@ -0,0 +1,6 @@
+# Compiling
+To build the web interface from source, you will need to compile the Go code into a WebAssembly file:
+```
+GOOS=js GOARCH=wasm go build -ldflags="-s -w" index.go
+```
+This will create a binary file. Compress it with [LZMA](https://github.com/LZMA-JS/LZMA-JS), encode it in Base64, and paste the final result to [L198](https://github.com/HACKERALERT/Picocrypt/blob/main/web/index.html#L198).