diff --git a/.github/workflows/backend-tests.yml b/.github/workflows/backend-tests.yml
new file mode 100644
index 00000000..0dcf94ad
--- /dev/null
+++ b/.github/workflows/backend-tests.yml
@@ -0,0 +1,69 @@
+name: Backend Tests
+
+on:
+  push:
+    branches:
+      - main
+      - master
+    paths:
+      - 'py/**'
+      - 'standalone.py'
+      - 'tests/**'
+      - 'requirements.txt'
+      - 'requirements-dev.txt'
+      - 'pyproject.toml'
+      - 'pytest.ini'
+      - '.github/workflows/backend-tests.yml'
+  pull_request:
+    paths:
+      - 'py/**'
+      - 'standalone.py'
+      - 'tests/**'
+      - 'requirements.txt'
+      - 'requirements-dev.txt'
+      - 'pyproject.toml'
+      - 'pytest.ini'
+      - '.github/workflows/backend-tests.yml'
+
+jobs:
+  pytest:
+    name: Run pytest with coverage
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+          cache: 'pip'
+          cache-dependency-path: |
+            requirements.txt
+            requirements-dev.txt
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements-dev.txt
+
+      - name: Run pytest with coverage
+        env:
+          COVERAGE_FILE: coverage/backend/.coverage
+        run: |
+          mkdir -p coverage/backend
+          python -m pytest \
+            --cov=py \
+            --cov=standalone \
+            --cov-report=term-missing \
+            --cov-report=xml:coverage/backend/coverage.xml \
+            --cov-report=html:coverage/backend/html \
+            --cov-report=json:coverage/backend/coverage.json
+
+      - name: Upload coverage artifact
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: backend-coverage
+          path: coverage/backend
+          if-no-files-found: warn
diff --git a/.github/workflows/frontend-tests.yml b/.github/workflows/frontend-tests.yml
index 362a8b67..5ae42eb5 100644
--- a/.github/workflows/frontend-tests.yml
+++ b/.github/workflows/frontend-tests.yml
@@ -11,6 +11,7 @@ on:
       - 'vitest.config.js'
       - 'tests/frontend/**'
       - 'static/js/**'
+      - 'scripts/run_frontend_coverage.js'
       - '.github/workflows/frontend-tests.yml'
   pull_request:
     paths:
@@ -19,6 +20,7 @@ on:
       - 'vitest.config.js'
       - 'tests/frontend/**'
       - 'static/js/**'
+      - 'scripts/run_frontend_coverage.js'
       - '.github/workflows/frontend-tests.yml'
 
 jobs:
diff --git a/.gitignore b/.gitignore
index bae77cab..9b05d66a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ cache/
 civitai/
 node_modules/
 coverage/
+.coverage
diff --git a/README.md b/README.md
index 7e932acc..87ba168f 100644
--- a/README.md
+++ b/README.md
@@ -233,6 +233,33 @@ You can now run LoRA Manager independently from ComfyUI:
 
 This standalone mode provides a lightweight option for managing your model and recipe collection without needing to run the full ComfyUI environment, making it useful even for users who primarily use other stable diffusion interfaces.
 
+## Testing & Coverage
+
+### Backend
+
+Install the development dependencies and run pytest with coverage reports:
+
+```bash
+pip install -r requirements-dev.txt
+COVERAGE_FILE=coverage/backend/.coverage pytest \
+  --cov=py \
+  --cov=standalone \
+  --cov-report=term-missing \
+  --cov-report=html:coverage/backend/html \
+  --cov-report=xml:coverage/backend/coverage.xml \
+  --cov-report=json:coverage/backend/coverage.json
+```
+
+HTML, XML, and JSON artifacts are stored under `coverage/backend/` so you can inspect hot spots locally or from CI artifacts.
+
+### Frontend
+
+Run the Vitest coverage suite to analyze widget hot spots:
+
+```bash
+npm run test:coverage
+```
+
 ---
 
 ## Contributing
diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 00000000..19e0b92f
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1,3 @@
+-r requirements.txt
+pytest>=7.4
+pytest-cov>=4.1