diff --git a/.github/workflows/ci_build.yaml b/.github/workflows/ci_build.yaml
new file mode 100644
index 0000000000..dc795a0e09
--- /dev/null
+++ b/.github/workflows/ci_build.yaml
@@ -0,0 +1,138 @@
+name: CI Build
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    name: "${{matrix.os}}, ${{matrix.qt_version}}, ${{matrix.build_type}} "
+    runs-on: ${{matrix.os}}
+    strategy:
+        fail-fast: false
+        matrix:
+          include:
+            - os: windows-latest
+              build_type: qtwebengine with hunspell
+              qt_version: 5.15.2
+            - os: windows-latest
+              build_type: qtwebengine without hunspell
+              qt_version: 5.15.2
+
+            - os: ubuntu-18.04
+              build_type: qtwebkit with hunspell
+              qt_version: repository
+              apt-dependencies: git build-essential cmake qtbase5-dev libqt5core5a libqt5gui5 libqt5multimedia5 qtmultimedia5-dev libqt5network5 libqt5printsupport5 libqt5qml5 qtdeclarative5-dev libqt5svg5 libqt5svg5-dev libqt5widgets5 libhunspell-dev libqt5webkit5 libqt5webkit5-dev
+            - os: ubuntu-18.04
+              build_type: qtwebkit without hunspell
+              qt_version: repository
+              apt-dependencies: git build-essential cmake qtbase5-dev libqt5core5a libqt5gui5 libqt5multimedia5 qtmultimedia5-dev libqt5network5 libqt5printsupport5 libqt5qml5 qtdeclarative5-dev libqt5svg5 libqt5svg5-dev libqt5widgets5 libqt5webkit5 libqt5webkit5-dev
+            - os: ubuntu-18.04
+              build_type: qtwebengine with hunspell
+              qt_version: 5.15.2
+              apt-dependencies: git build-essential cmake libhunspell-dev
+            - os: ubuntu-20.04
+              build_type: qtwebkit with hunspell
+              qt_version: repository
+              apt-dependencies: git build-essential cmake qtbase5-dev libqt5core5a libqt5gui5 libqt5multimedia5 qtmultimedia5-dev libqt5network5 libqt5printsupport5 libqt5qml5 qtdeclarative5-dev libqt5svg5 libqt5svg5-dev libqt5widgets5 libhunspell-dev libqt5webkit5 libqt5webkit5-dev
+
+            - os: macOS-latest
+              build_type: qtwebengine with hunspell
+              qt_version: 5.15.2
+            - os: macOS-latest
+              build_type: qtwebengine without hunspell
+              qt_version: 5.15.2
+
+    steps:
+    - name: Get Otter Browser source
+      uses: actions/checkout@v1
+      with:
+        submodules: false
+        fetch-depth: 1
+
+    - name: Cache Qt
+      if: !startsWith(matrix.qt_version, 'repository')
+      id: cache-qt
+      uses: actions/cache@v2
+      with:
+        path: ${{runner.workspace}}/Qt
+        key: ${{runner.os}}-QtCache
+
+    - name: Install Qt ${{matrix.qt_version}} with QtWebEngine
+      if: startsWith(matrix.os, 'windows') && startsWith(matrix.build_type, 'qtwebengine') || startsWith(matrix.os, 'macos') && startsWith(matrix.build_type, 'qtwebengine') || startsWith(matrix.os, 'ubuntu') && !startsWith(matrix.qt_version, 'repository') && startsWith(matrix.build_type, 'qtwebengine')
+      uses: jurplel/install-qt-action@v2
+      with:
+        version: ${{matrix.qt_version}}
+        modules: qtwebengine
+        cached: ${{steps.cache-qt.outputs.cache-hit}}
+
+    - name: Install Qt ${{matrix.qt_version}} without QtWebEngine
+      if: startsWith(matrix.os, 'windows') && startsWith(matrix.build_type, 'qtwebkit') || startsWith(matrix.os, 'macos') && startsWith(matrix.build_type, 'qtwebkit') || startsWith(matrix.os, 'ubuntu') && !startsWith(matrix.qt_version, 'repository') && startsWith(matrix.build_type, 'qtwebkit')
+      uses: jurplel/install-qt-action@v2
+      with:
+        version: ${{matrix.qt_version}}
+        cached: ${{steps.cache-qt.outputs.cache-hit}}
+
+    - name: Install hunspell dependencies on Windows
+      if: startsWith(matrix.os, 'windows') && endsWith(matrix.build_type, 'with hunspell')
+      uses: msys2/setup-msys2@v2
+      with:
+        install: >-
+          base-devel
+          mingw-w64-x86_64-toolchain
+          mingw-w64-x86_64-libtool
+
+    - name: Install hunspell on Windows
+      if: startsWith(matrix.os, 'windows') && endsWith(matrix.build_type, 'with hunspell')
+      shell: msys2 {0}
+      run: |
+        curl -Ls https://github.com/hunspell/hunspell/files/2573619/hunspell-1.7.0.tar.gz -o hunspell.tar.gz
+        tar -xf hunspell.tar.gz
+        cd hunspell-1.7.0
+        autoreconf -vfi
+        ./configure
+        make -j2
+        echo "CMAKE_BUILD_EXTRA=-DHunspell_INCLUDE_DIR=$RUNNER_WORKSPACE\hunspell-1.7.0\src\ -DHunspell_LIBRARIES=hunspell-1.7" >> $GITHUB_ENV
+
+    - name: Install dependencies
+      shell: bash
+      run: |
+
+        # Install APT dependencies on Ubuntu
+        if [[ "${{ matrix.os }}" = "ubuntu"* ]]; then
+          echo "Updating apt repository index"
+          sudo apt update
+          echo "Installing apt packages"
+          sudo apt install -y ${{ matrix.apt-dependencies }}
+        fi
+
+        # Install Hunspell on MacOS
+        if [[ "${{ matrix.os }}" = "macOS"* && "${{ matrix.build_type }}" != *"without"* ]]; then
+          echo "Installing Hunspell"
+          brew install hunspell
+        fi
+
+    - name: Create Build Environment
+      shell: bash
+      run: cmake -E make_directory "${{runner.workspace}}/build"
+
+    - name: Configure CMake
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      run: cmake $GITHUB_WORKSPACE $CMAKE_BUILD_EXTRA
+
+    - name: Build Otter Browser
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      run: cmake --build . --parallel 3
+
+    - name: Output system stats
+      if: ${{ always() }}
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      run: |
+        echo "Disk usage:"
+        df -h