diff --git a/.github/workflows/buildRelease.yml b/.github/workflows/buildRelease.yml
index 333bc59..e57c3ad 100644
--- a/.github/workflows/buildRelease.yml
+++ b/.github/workflows/buildRelease.yml
@@ -107,7 +107,7 @@ jobs:
           echo "linux=true" >> $GITHUB_OUTPUT;
           echo "macos=true" >> $GITHUB_OUTPUT;
           echo "windows=true" >> $GITHUB_OUTPUT;
-          
+
 
 ######################################################################################
 
@@ -123,7 +123,7 @@ jobs:
     steps:
       # Checkout the actions for this repo owner
       - name: Checkout Actions
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: ${{ github.repository_owner }}/.github
           path: ./Actions_${{ github.sha }}
@@ -157,7 +157,7 @@ jobs:
     steps:
       # Checkout the actions for this repo owner
       - name: Checkout Actions
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: ${{ github.repository_owner }}/.github
           path: ./Actions_${{ github.sha }}
@@ -165,7 +165,7 @@ jobs:
 
       # Checkout the branch
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Setup release tag
       - name: Setup Release Tag
@@ -272,11 +272,11 @@ jobs:
 
       # Checkout the branch
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Checkout the actions for this repo owner
       - name: Checkout Actions
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: ${{ github.repository_owner }}/.github
           path: ./Actions_${{ github.sha }}
@@ -324,7 +324,7 @@ jobs:
           export LDEARCH=aarch64-apple-darwin
           ./makeright init
           mkdir -p ../darwin.universal
-          exe=ldeinit 
+          exe=ldeinit
           lipo -create \
                -arch arm64 ../darwin.aarch64/${exe}  \
                -arch x86_64 ../darwin.x86_64/${exe} \
@@ -346,7 +346,7 @@ jobs:
             lipo ${exe} -output ../darwin.x86_64/${exe} -extract x86_64
             lipo ${exe} -output ../darwin.aarch64/${exe} -extract arm64
             cp -p ${exe} ../darwin.universal/${exe}
-          done  
+          done
 
       # Create release tar for github.
       - name: Make release tar(s)
@@ -369,7 +369,7 @@ jobs:
       # Push Release
       - name: Push the release
         uses: ncipollo/release-action@v1
-        with: 
+        with:
           allowUpdates: true
           artifacts:
             /tmp/release_tars/${{ steps.tag.outputs.release_tag }}-darwin.x86_64.tgz,
@@ -383,7 +383,7 @@ jobs:
 
   # Windows: build for Windows-Cygwin via Docker build and use results to
   # create and push release assets to github
-  
+
   windows:
 
     needs: [inputs, sentry]
@@ -418,7 +418,7 @@ jobs:
       # Retrieve SDL2 and install in cygwin
       - name: Install SDL2
         id: sdl2
-        env: 
+        env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           gh release download 2.26.5 --repo interlisp/cygwin-sdl --pattern *.tgz --output .\cygwin\sdl2.tar.gz
@@ -426,13 +426,13 @@ jobs:
 
       # Checkout the branch
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: cygwin\maiko
 
       # Checkout the actions for this repo owner
       - name: Checkout Actions
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: ${{ github.repository_owner }}/.github
           path: ./Actions_${{ github.sha }}
@@ -473,6 +473,80 @@ jobs:
 
 
 
+######################################################################################
+
+  # Emscripten: build and push Maiko compiled for Emscripten (to run Maiko in browser)
+
+  emscripten:
+
+    needs: [inputs, sentry]
+    if: |
+      needs.inputs.outputs.linux == 'true'
+      && (
+         needs.sentry.outputs.release_not_built == 'true'
+         || needs.inputs.outputs.force == 'true'
+      )
+
+    runs-on: ubuntu-latest
+
+    steps:
+
+      # Checkout the actions for this repo owner
+      - name: Checkout Actions
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ github.repository_owner }}/.github
+          path: ./Actions_${{ github.sha }}
+      - run: mv ./Actions_${{ github.sha }}/actions ../actions && rm -rf ./Actions_${{ github.sha }}
+
+      # Install SDL2
+      - name: Install SDL2
+        run: |
+          export DEBIAN_FRONTEND=noninteractive
+          sudo -E apt-get install -y libsdl2-dev libsdl2-2.0-0
+
+      # Install Emscripten SDK
+      - name: Install Empscripten
+        working-directory: ../
+        run: |
+          git clone https://github.com/emscripten-core/emsdk.git
+          cd emsdk
+          ./emsdk install latest
+          ./emsdk activate latest
+          CWD="$(pwd)"
+          echo "${CWD}"  >> ${GITHUB_PATH}
+          echo "${CWD}/upstream/emscripten" >> ${GITHUB_PATH}
+          echo "${CWD}/upstream/emscripten/tools" >> ${GITHUB_PATH}
+          echo "${CWD}/node/$(ls -d node/*64bit | tail -1)/bin" >> ${GITHUB_PATH}
+
+      # Checkout the maiko branch
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      # Setup release tag
+      - name: Setup Release Tag
+        id: tag
+        uses: ./../actions/release-tag-action
+
+      # Compile maiko using Emscripten (no load build)
+      - name: Compile Maiko using Emscripten
+        working-directory: ./bin
+        run: |
+          ./makeright wasm_nl
+          cd ../emscripten.wasm_nl
+          tar -c -z -f ../${{ steps.tag.outputs.release_tag }}-emscripten.tgz *
+
+      # Push Release to github
+      - name: Push the release
+        uses: ncipollo/release-action@v1
+        with:
+          allowUpdates: true
+          artifacts: ${{ steps.tag.outputs.release_tag }}-emscripten.tgz
+          tag: ${{ steps.tag.outputs.release_tag }}
+          draft: ${{ needs.inputs.outputs.draft }}
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+
 ######################################################################################
 
   # Use set-sentry-action to determine set the sentry that says this release has
@@ -485,12 +559,12 @@ jobs:
     outputs:
       build_successful: ${{ steps.output.outputs.build_successful }}
 
-    needs: [inputs, sentry, linux, macos, windows]
+    needs: [inputs, sentry, linux, macos, windows, emscripten]
 
     steps:
       # Checkout the actions for this repo owner
       - name: Checkout Actions
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: ${{ github.repository_owner }}/.github
           path: ./Actions_${{ github.sha }}
diff --git a/.gitignore b/.gitignore
index 306defa..dd4fecf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,8 @@ cmake-build-*/**
 *.x86_64/**
 *.wasm/**
 *.wasm-wasm/**
+*.wasm_nl/**
+*.wasm_nl-wasm_nl/**
 *.armv7l-x/**
 *.armv7l/**
 *.aarch64-x/**
diff --git a/bin/makefile-emscripten.wasm_nl-wasm_nl b/bin/makefile-emscripten.wasm_nl-wasm_nl
new file mode 100644
index 0000000..b9f5736
--- /dev/null
+++ b/bin/makefile-emscripten.wasm_nl-wasm_nl
@@ -0,0 +1,23 @@
+# Options for Emscripten, WASM and SDL
+
+CC = emcc $(CLANG_CFLAGS)
+
+XFILES = $(OBJECTDIR)sdl.o
+
+XFLAGS = -DSDL -sUSE_SDL=2
+
+# OPTFLAGS is normally -O2.
+OPTFLAGS = -O2
+DFLAGS = $(XFLAGS) -DRELEASE=351 -DMAIKO_ENABLE_NETHUB
+
+MEDLEY?=../../medley
+SYSOUT?=$(MEDLEY)/loadups/full.sysout
+
+LD = emcc
+LDFLAGS = -sUSE_SDL=2 -sASYNCIFY -sALLOW_MEMORY_GROWTH -sEXIT_RUNTIME=1 -sFORCE_FILESYSTEM -sLZ4
+
+LDELDFLAGS =
+
+OBJECTDIR = ../$(RELEASENAME)/
+
+default	: ../$(OSARCHNAME)/ldesdl.js
diff --git a/bin/makeright b/bin/makeright
index 156685c..25f21f1 100755
--- a/bin/makeright
+++ b/bin/makeright
@@ -79,6 +79,11 @@ case "$display" in
 		releasename=${osversion}.${architecture}-${display}
 		ldename=ldesdl.js
 		;;
+	wasm_nl) osversion=emscripten
+		architecture=wasm_nl
+		releasename=${osversion}.${architecture}-${display}
+		ldename=ldesdl.js
+		;;
 	*)	echo "display-option: $display is not supported."
 		exit
 		;;