diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6751ca36a..281085a19 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -215,7 +215,48 @@ jobs:
       working-directory: ${{runner.workspace}}/build
       run: cmake --build . --config $BUILD_TYPE -j 2
 
-  build-wasm:
+  webapp-mobile:
+    runs-on: ubuntu-20.04
+    env:
+      BUILD_TYPE: Release
+      CMAKE_FLAGS: -DSPIRIT_UI_USE_IMGUI=OFF -DSPIRIT_BUILD_FOR_JS=ON
+      EMSCRIPTEN_VERSION: "1.39.20"
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: 📚 Install Emscripten
+      working-directory: ${{runner.workspace}}
+      run: |
+        git clone https://github.com/emscripten-core/emsdk.git
+        cd emsdk
+        ./emsdk install $EMSCRIPTEN_VERSION
+        ./emsdk activate $EMSCRIPTEN_VERSION
+
+    - name: 📁 Create build folder
+      run: cmake -E make_directory ${{runner.workspace}}/build
+
+    - name: ⚙ Configure
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      run: |
+        source ${{runner.workspace}}/emsdk/emsdk_env.sh
+        cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE $CMAKE_FLAGS -DCMAKE_TOOLCHAIN_FILE=${{runner.workspace}}/emsdk/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake
+
+    - name: 🛠 Build
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      run: |
+        source ${{runner.workspace}}/emsdk/emsdk_env.sh
+        cmake --build . --config $BUILD_TYPE -j 2
+
+    - name: 📦 Archive mobile web app
+      uses: actions/upload-artifact@v2
+      with:
+        name: webapp-mobile
+        path: ui-web/
+
+  webapp-desktop:
     runs-on: ubuntu-20.04
     env:
       BUILD_TYPE: Release
@@ -250,6 +291,12 @@ jobs:
         source ${{runner.workspace}}/emsdk/emsdk_env.sh
         cmake --build . --config $BUILD_TYPE -j 2
 
+    - name: 📦 Archive desktop web app
+      uses: actions/upload-artifact@v2
+      with:
+        name: webapp-desktop
+        path: ui-cpp/ui-imgui/webapp/
+
   deploy-pypi:
     if: github.event_name != 'pull_request'
     needs: test