diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..30b4fae
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,71 @@
+name: Build and Cross-compile
+
+on:
+  push:
+    branches:
+      - main
+      - master
+    tags:
+      - 'v*'
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        compiler: [clang]
+
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+
+      #######################
+      # Ubuntu dependencies #
+      #######################
+      - name: Install dependencies (Ubuntu)
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          sudo apt update
+          sudo apt install --no-install-recommends -y build-essential libboost-all-dev libssl-dev git
+
+      - name: Cache build artifacts (Ubuntu)
+        if: matrix.os == 'ubuntu-latest'
+        uses: actions/cache@v3
+        with:
+          path: |
+            obj
+            libi2pd.a
+          key: ubuntu-build-${{ runner.os }}-${{ hashFiles('**/*.cpp', '**/*.h') }}
+
+      - name: Install MSYS2 (Windows)
+        if: matrix.os == 'windows-latest'
+        run: |
+          Invoke-WebRequest -Uri "https://github.com/msys2/msys2-installer/releases/download/2025-08-30/msys2-x86_64-20250830.exe" -OutFile "msys2-installer.exe"
+          Start-Process -Wait -FilePath "msys2-installer.exe" -ArgumentList "/S"
+          C:\msys64\usr\bin\bash.exe -lc "pacman -Syu --noconfirm"
+          C:\msys64\usr\bin\bash.exe -lc "export ARCH=x86_64; export MINGW=mingw64; pacman -S --noconfirm mingw-w64-$ARCH-gcc mingw-w64-$ARCH-boost mingw-w64-$ARCH-openssl git make"
+
+      - name: Initialize Git Submodules
+        run: git submodule update --init --recursive
+
+      - name: Build Project (Ubuntu)
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          make -j8
+          make stripall
+          make builddir
+
+      - name: Build Project (Windows)
+        if: matrix.os == 'windows-latest'
+        run: |
+          C:\msys64\usr\bin\bash.exe -lc "cd /c/runner/work/i2pd-tools/i2pd-tools && make && make stripall && make builddir"
+
+      - name: Upload binaries
+        uses: actions/upload-artifact@v4
+        with:
+          name: my-binaries-${{ matrix.os }}
+          path: build/*
+