diff --git a/src/UUID.cpp b/src/UUID.cpp
index 84e06fe8..613734c0 100644
--- a/src/UUID.cpp
+++ b/src/UUID.cpp
@@ -6,7 +6,10 @@
 
 #include "Prefix/StdAfx.h"
 
-#if _LINUX
+#if defined(__EMSCRIPTEN__)
+	// Emscripten/WASM: no libuuid available, we generate random (v4) UUIDs
+	#include <random>
+#elif _LINUX
 	// If this include fails, run this command to install it:
 	// sudo apt-get install uuid-dev
 	#include <uuid/uuid.h>
@@ -309,6 +312,17 @@ void VWFC::Tools::VWUUID::New()
 	fData[13]			= guid.Data4[5];
 	fData[14]			= guid.Data4[6];
 	fData[15]			= guid.Data4[7];
+#elif defined(__EMSCRIPTEN__)
+	// Generate a random (version 4) UUID.
+	// std::random_device maps to a secure entropy source in Emscripten
+	{
+		std::random_device rd;
+		std::uniform_int_distribution<unsigned int> dist(0, 255);
+		for (size_t i = 0; i < 16; i++) { fData[i] = (Uint8)dist(rd); }
+
+		fData[6] = (Uint8)((fData[6] & 0x0F) | 0x40);	// version 4
+		fData[8] = (Uint8)((fData[8] & 0x3F) | 0x80);	// variant 10xx
+	}
 #elif _LINUX
 	uuid_t myUUID;
 	uuid_generate_time_safe( myUUID );
diff --git a/src/Wrapper/FilingWrapper.cpp b/src/Wrapper/FilingWrapper.cpp
index e392ee14..323e50e4 100644
--- a/src/Wrapper/FilingWrapper.cpp
+++ b/src/Wrapper/FilingWrapper.cpp
@@ -396,6 +396,12 @@ bool VectorworksMVR::Filing::GetFolderAppDataPath(TXString& outPath)
 	
 	if(!result) return false;
 	outPath = TXString(buffer);
+#elif defined(__EMSCRIPTEN__)
+	// Emscripten/WASM: getpwuid() returns NULL; use $HOME or the default
+	// MEMFS home directory instead
+	const char* homedir = getenv("HOME");
+	if (homedir == nullptr || homedir[0] == 0) { homedir = "/home/web_user"; }
+	outPath = TXString(homedir);
 #elif _LINUX
 	// LINUX_IMPLEMENTATION - done
 	struct passwd *pw = getpwuid(getuid());
diff --git a/src/XmlFileHelper.cpp b/src/XmlFileHelper.cpp
index 8faca3a8..928d0988 100644
--- a/src/XmlFileHelper.cpp
+++ b/src/XmlFileHelper.cpp
@@ -399,7 +399,7 @@ bool SceneData::GdtfConverter::ConvertColorArray(TXString values, const IXMLFile
 	return valueStr;
 }
 
-#ifdef IS64BIT
+#if defined(IS64BIT) || defined(__EMSCRIPTEN__)
 /*static*/ TXString GdtfConverter::ConvertInteger(Uint32 value)
 {
 	TXString valueStr;
@@ -449,7 +449,7 @@ bool SceneData::GdtfConverter::ConvertColorArray(TXString values, const IXMLFile
 	return true;
 }
 
-#ifdef IS64BIT
+#if defined(IS64BIT) || defined(__EMSCRIPTEN__)
 /*static*/ bool GdtfConverter::ConvertInteger(const TXString& value, const IXMLFileNodePtr& node, Uint32& intValue)
 {
     if(value.IsEmpty()) return false;
diff --git a/src/XmlFileHelper.h b/src/XmlFileHelper.h
index 578300c2..2ca866ce 100644
--- a/src/XmlFileHelper.h
+++ b/src/XmlFileHelper.h
@@ -62,7 +62,7 @@ namespace SceneData
 		static TXString	ConvertDouble(double value);
 		static TXString	ConvertDoubleArray(TDoubleArray& values, bool includeBrackets);
 		static TXString	ConvertInteger(Sint32 value);
-#ifdef IS64BIT
+#if defined(IS64BIT) || defined(__EMSCRIPTEN__)
 		static TXString	ConvertInteger(Uint32 value);
 #endif
         static TXString	ConvertDmxBreak(Sint32 value);
@@ -118,7 +118,7 @@ namespace SceneData
 		static bool		ConvertPrimitiveType(			const TXString& value, const IXMLFileNodePtr& node,	EGdtfModel_PrimitiveType& type);
 		static bool		ConvertLampeType(				const TXString& value, const IXMLFileNodePtr& node,	EGdtfLampType& lampType);
 		static bool		ConvertInteger(					const TXString& value, const IXMLFileNodePtr& node,	Sint32&	intValue);
-#ifdef IS64BIT
+#if defined(IS64BIT) || defined(__EMSCRIPTEN__)
 		static bool		ConvertInteger(					const TXString& value, const IXMLFileNodePtr& node,	Uint32&	intValue);
 #endif
         static bool		ConvertDmxBreak(				const TXString& value, const IXMLFileNodePtr& node,	Sint32&	intValue);