diff --git a/.gitignore b/.gitignore
index 7df2008..f314e60 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,8 @@
 
+# pytest-textual-snapshot
+snapshot_report.html
+
+
 # Temporary backup files from Textual Paint and other editors
 *~
 
diff --git a/cspell.json b/cspell.json
index 0b38051..2fbc9c8 100644
--- a/cspell.json
+++ b/cspell.json
@@ -123,6 +123,7 @@
 		"pyperclip",
 		"pypixelart",
 		"pyright",
+		"pytest",
 		"pyxdg",
 		"qualname",
 		"rasterization",
diff --git a/requirements.txt b/requirements.txt
index ae6e379..d0fad9c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,3 +12,5 @@ textual[dev]==0.28.0
 watchdog==3.0.0 # for development; optional (only used when --restart-on-changes is passed)
 types-Pillow==10.0.0.1 # for development
 types-psutil==5.9.5.15 # for development
+pytest==7.4.1 # for development
+pytest-textual-snapshot==0.4.0 # for development
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/test_snapshots.py b/tests/test_snapshots.py
new file mode 100644
index 0000000..c4a841f
--- /dev/null
+++ b/tests/test_snapshots.py
@@ -0,0 +1,18 @@
+from pathlib import Path
+
+import pytest
+
+# These paths are treated as relative to this file.
+APPS_DIR = Path("../src/textual_paint")
+PAINT = APPS_DIR / "paint.py"
+GALLERY = APPS_DIR / "gallery.py"
+
+def test_paint_app(snap_compare):
+    assert snap_compare(PAINT)
+
+def test_paint_stretch_skew(snap_compare):
+    assert snap_compare(PAINT, press=["ctrl+w"])
+
+def test_gallery_app(snap_compare):
+    assert snap_compare(GALLERY)
+