diff --git a/.github/workflows/spellcheck.yml b/.github/workflows/spellcheck.yml
new file mode 100644
index 00000000..4827dca2
--- /dev/null
+++ b/.github/workflows/spellcheck.yml
@@ -0,0 +1,17 @@
+name: Check spelling
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  spellcheck:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Run spell checker
+        uses: streetsidesoftware/cspell-action@v6
diff --git a/cspell.yml b/cspell.yml
new file mode 100644
index 00000000..4910cbbf
--- /dev/null
+++ b/cspell.yml
@@ -0,0 +1,24 @@
+version: "0.2"
+
+language: en
+useGitignore: true
+ignoreWords:
+  - ecomap
+  - androidx
+  - appcompat
+  - constraintlayout
+  - gradlew
+  - proguard
+  - mipmap
+  - aapt
+  - sharedpref
+  - Compat
+  - Avenir
+  - Parens
+ignorePaths:
+  - gradle
+  - gradle.properties
+  - gradlew
+  - gradlew.bat
+  - proguard-rules.pro
+  - "*.svg"
diff --git a/web/tsconfig.json b/web/tsconfig.json
index ff8fdffa..98bd03ee 100644
--- a/web/tsconfig.json
+++ b/web/tsconfig.json
@@ -6,7 +6,7 @@
 		"module": "ESNext",
 		"resolveJsonModule": true,
 		/**
-		 * Typecheck JS in `.svelte` and `.js` files by default.
+		 * Type check JS in `.svelte` and `.js` files by default.
 		 * Disable checkJs if you'd like to use dynamic types in JS.
 		 * Note that setting allowJs false does not prevent the use
 		 * of JS in `.svelte` files.