diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
new file mode 100644
index 0000000..6f09a5d
--- /dev/null
+++ b/.github/workflows/CI.yml
@@ -0,0 +1,30 @@
+name: CI
+on: [push, pull_request]
+
+jobs:
+  style:
+    name: Check Style
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: Install Rustfmt
+      run: rustup component add rustfmt
+    - name: Check formatting
+      run: cargo fmt --all -- --check
+
+  test:
+    name: Test
+    needs: [style]
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - stable
+          - beta
+          - nightly
+    steps:
+      - uses: actions/checkout@master
+      - name: Install Rust
+        run: rustup update ${{ matrix.rust }} && rustup default ${{ matrix.rust }}
+      - name: Run tests
+        run: cargo test
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
deleted file mode 100644
index 951551c..0000000
--- a/azure-pipelines.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-trigger: ["master"]
-pr: ["master"]
-
-jobs:
-# Check formatting
-- job: rustfmt
-  pool:
-    vmImage: ubuntu-16.04
-  steps:
-  - template: ci/azure-rustfmt.yml
-
-# Run tests
-- template: ci/azure-test-all.yml
diff --git a/ci/azure-install-rust.yml b/ci/azure-install-rust.yml
deleted file mode 100644
index 3ebe5b2..0000000
--- a/ci/azure-install-rust.yml
+++ /dev/null
@@ -1,25 +0,0 @@
-steps:
-  # Linux and macOS.
-  - script: |
-      set -e
-      curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain $RUSTUP_TOOLCHAIN
-      echo "##vso[task.setvariable variable=PATH;]$PATH:$HOME/.cargo/bin"
-    env:
-      RUSTUP_TOOLCHAIN: ${{parameters.rust_version}}
-    displayName: "Install rust (*nix)"
-    condition: not(eq(variables['Agent.OS'], 'Windows_NT'))
-  # Windows.
-  - script: |
-      curl -sSf -o rustup-init.exe https://win.rustup.rs
-      rustup-init.exe -y --default-toolchain %RUSTUP_TOOLCHAIN%
-      set PATH=%PATH%;%USERPROFILE%\.cargo\bin
-      echo "##vso[task.setvariable variable=PATH;]%PATH%;%USERPROFILE%\.cargo\bin"
-    env:
-      RUSTUP_TOOLCHAIN: ${{parameters.rust_version}}
-    displayName: "Install rust (windows)"
-    condition: eq(variables['Agent.OS'], 'Windows_NT')
-  # All platforms.
-  - script: |
-        rustc -Vv
-        cargo -V
-    displayName: Query rust and cargo versions
diff --git a/ci/azure-rustfmt.yml b/ci/azure-rustfmt.yml
deleted file mode 100644
index d253ddd..0000000
--- a/ci/azure-rustfmt.yml
+++ /dev/null
@@ -1,10 +0,0 @@
-steps:
-  - template: azure-install-rust.yml
-    parameters:
-      rust_version: stable
-  - bash: |
-      rustup component add rustfmt
-    displayName: Install rustfmt
-  - bash: |
-      cargo fmt --all -- --check
-    displayName: Check formatting
diff --git a/ci/azure-test-all.yml b/ci/azure-test-all.yml
deleted file mode 100644
index 1217054..0000000
--- a/ci/azure-test-all.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-jobs:
-- job: cargo_test_all
-  displayName: cargo test
-  pool:
-    vmImage: ubuntu-16.04
-  strategy:
-    matrix:
-      stable:
-        rust_version: stable
-      beta:
-        rust_version: beta
-      nightly:
-        rust_version: nightly
-  steps:
-  - template: azure-install-rust.yml
-    parameters:
-      rust_version: $(rust_version)
-  - script: cargo test
-    displayName: cargo test