diff --git a/.github/workflows/linux-ci.yml b/.github/workflows/linux-ci.yml
new file mode 100644
index 0000000000..de79f0b2c9
--- /dev/null
+++ b/.github/workflows/linux-ci.yml
@@ -0,0 +1,85 @@
+name: linux-ci
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  build-ubuntu:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu
+        compiler:
+          - clang
+          - gcc
+        strictness:
+          - "normal"
+          - "strict"
+
+    steps:
+      - name: Configure environment
+        run: |
+          {
+            HB_USER_CFLAGS=""
+            HB_USER_LDFLAGS=""
+            case ${{matrix.strictness}} in
+              normal) ;;
+              strict) HB_USER_CFLAGS="$HB_USER_CFLAGS -Werror" ;;
+            esac
+            echo HB_BUILD_VERBOSE="yes"
+            echo HB_USER_CFLAGS="$HB_USER_CFLAGS"
+            echo HB_USER_LDFLAGS="$HB_USER_LDFLAGS"
+          } >> $GITHUB_ENV
+          tee -a $GITHUB_PATH <<EOPATH
+          /usr/lib/ccache
+          /usr/local/opt/ccache/libexec
+          EOPATH
+
+      - name: Install packages
+        run: |
+          sudo apt-get install -qq \
+            libncurses-dev	\
+            libslang2-dev	\
+            libx11-dev	\
+            libgpm-dev	\
+            liballegro4.2-dev	\
+            libcairo2-dev	\
+            libcups2-dev	\
+            libcurl4-openssl-dev	\
+            firebird-dev	\
+            libfreeimage-dev	\
+            libgd-dev	\
+            libgs-dev	\
+            libmagic-dev	\
+            libmysqlclient-dev	\
+            unixodbc-dev	\
+            libpq-dev	\
+            qtbase5-dev
+
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          ref: ${{ github.event.client_payload.branch }}
+
+      - run: pwd
+      - run: ls
+
+      - name: Prepare ccache using action
+        uses: hendrikmuhs/ccache-action@v1.2.10
+        with:
+          key: ${{ matrix.os }}-${{ matrix.compiler }}-${{ matrix.strictness }}-ci
+          max-size: "32M"
+
+      - name: Compile Harbour
+        run: |
+          make \
+            HB_COMPILER=${{matrix.compiler}} \
+            -j$(nproc)
+
+      - name: Run tests
+        run: |
+          bin/linux/${{matrix.compiler}}/hbtest
diff --git a/.github/workflows/macos-ci.yml b/.github/workflows/macos-ci.yml
new file mode 100644
index 0000000000..535a3298a0
--- /dev/null
+++ b/.github/workflows/macos-ci.yml
@@ -0,0 +1,76 @@
+name: macos-ci
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  build-macos:
+    runs-on: macos-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - macos
+        compiler:
+          - clang
+          - gcc
+        strictness:
+          - "normal"
+          - "strict"
+
+    steps:
+      - name: Configure environment
+        run: |
+          {
+            HB_USER_CFLAGS="-arch arm64 -arch x86_64"
+            HB_USER_LDFLAGS="-arch arm64 -arch x86_64"
+            case ${{matrix.strictness}} in
+              normal) ;;
+              strict) HB_USER_CFLAGS="$HB_USER_CFLAGS -Werror" ;;
+            esac
+            echo HB_BUILD_VERBOSE="yes"
+            echo HB_USER_CFLAGS="$HB_USER_CFLAGS"
+            echo HB_USER_LDFLAGS="$HB_USER_LDFLAGS"
+            echo HB_BUILD_CONTRIBS="no hbfimage" # incompatible with freeimage 3.18+
+          } >> $GITHUB_ENV
+          tee -a $GITHUB_PATH <<EOPATH
+          /usr/lib/ccache
+          /usr/local/opt/ccache/libexec
+          EOPATH
+
+      - name: Install packages
+        run: |
+          brew install \
+            slang \
+            cairo \
+            freeimage \
+            libgd \
+            mysql \
+            postgresql \
+            qt5
+
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          ref: ${{ github.event.client_payload.branch }}
+
+      - run: pwd
+      - run: ls
+
+      - name: Prepare ccache using action
+        uses: hendrikmuhs/ccache-action@v1.2.10
+        with:
+          key: ${{ matrix.os }}-${{ matrix.cpu }}-${{ matrix.compiler }}-${{ matrix.strictness }}-ci
+          max-size: "32M"
+
+      - name: Compile Harbour
+        run: |
+          make \
+            HB_COMPILER=${{matrix.compiler}} \
+            -j$(nproc)
+
+      - name: Run tests
+        run: |
+          bin/darwin/${{matrix.compiler}}/hbtest
diff --git a/.github/workflows/windows-ci.yml b/.github/workflows/windows-ci.yml
new file mode 100644
index 0000000000..9797c0a2db
--- /dev/null
+++ b/.github/workflows/windows-ci.yml
@@ -0,0 +1,97 @@
+name: windows-ci
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  build-windows:
+    runs-on: windows-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - windows
+        compiler:
+          - mingw64
+        cpu:
+          - x86
+          - x86_64
+        strictness:
+          - "normal"
+          - "strict"
+
+    steps:
+      - name: Configure environment
+        shell: bash
+        run: |
+          {
+            HB_USER_CFLAGS=""
+            HB_USER_LDFLAGS=""
+            case ${{matrix.strictness}} in
+              normal) ;;
+              strict) HB_USER_CFLAGS="$HB_USER_CFLAGS -Werror" ;;
+            esac
+            echo HB_BUILD_VERBOSE="yes"
+            echo HB_USER_CFLAGS="$HB_USER_CFLAGS"
+            echo HB_USER_LDFLAGS="$HB_USER_LDFLAGS"
+            case ${{matrix.cpu}} in
+              (x86)    echo MINGWxx="MINGW32"
+                       echo "msys_cpu=i686" ;;
+              (x86_64) echo MINGWxx="MINGW64"
+                       echo "msys_cpu=${{matrix.cpu}}" ;;
+            esac
+          } >> $GITHUB_ENV
+          tee -a $GITHUB_PATH <<EOPATH
+          /mingw64/lib/ccache/bin
+          EOPATH
+
+      - name: Install packages
+        uses: msys2/setup-msys2@v2
+        with:
+          msystem: ${{ env.MINGWxx }}
+          location: d:/
+          install: >
+            mingw-w64-${{ env.msys_cpu }}-ccache
+            mingw-w64-${{ env.msys_cpu }}-gcc
+            mingw-w64-${{ env.msys_cpu }}-make
+            mingw-w64-${{ env.msys_cpu }}-allegro
+            mingw-w64-${{ env.msys_cpu }}-bzip2
+            mingw-w64-${{ env.msys_cpu }}-cairo
+            mingw-w64-${{ env.msys_cpu }}-curl
+            mingw-w64-${{ env.msys_cpu }}-firebird2-git
+            mingw-w64-${{ env.msys_cpu }}-freeimage
+            mingw-w64-${{ env.msys_cpu }}-libgd
+            mingw-w64-${{ env.msys_cpu }}-ghostscript
+            mingw-w64-${{ env.msys_cpu }}-libmariadbclient
+            mingw-w64-${{ env.msys_cpu }}-openssl
+            mingw-w64-${{ env.msys_cpu }}-postgresql
+            mingw-w64-${{ env.msys_cpu }}-qt5-base
+
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          ref: ${{ github.event.client_payload.branch }}
+
+      - run: pwd
+      - run: ls
+
+      - name: Prepare ccache using action
+        uses: hendrikmuhs/ccache-action@v1.2.10
+        with:
+          key: ${{ matrix.os }}-${{ matrix.cpu }}-${{ matrix.compiler }}-${{ matrix.strictness }}-ci
+          max-size: "32M"
+
+      - name: Compile Harbour
+        shell: msys2 {0}
+        run: |
+          mingw32-make.exe \
+            HB_COMPILER=${{matrix.compiler}} \
+            HB_CPU=${{matrix.cpu}} \
+            -j2
+
+      - name: Run tests
+        shell: msys2 {0}
+        run: |
+          bin/win/${{matrix.compiler}}/hbtest.exe
diff --git a/ChangeLog.txt b/ChangeLog.txt
index 4e28a4b6c8..99ac0cf07b 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -7,6 +7,12 @@
    Entries may not always be in chronological/commit order.
    See license at the end of file. */
 
+2023-11-09 15:07 UTC+0100 Phil Krylov (phil a t krylov.eu)
+  * .github/workflows/linux-ci.yml
+  * .github/workflows/macos-ci.yml
+  * .github/workflows/windows-ci.yml
+    + Added GitHub Actions CI workflows.
+
 2023-10-29 14:27 UTC+0100 Enrico Maria Giordano (e.m.giordano@emagsoftware.it)
   * contrib/hbssl/hbssl.hbp
     ! added support for Openssl 3