diff --git a/.codespellrc b/.codespellrc
new file mode 100644
index 00000000..46588cc1
--- /dev/null
+++ b/.codespellrc
@@ -0,0 +1,8 @@
+# See: https://github.com/codespell-project/codespell#using-a-config-file
+[codespell]
+# In the event of a false positive, add the problematic word, in all lowercase, to a comma-separated list here:
+ignore-words-list = afterall
+builtin = clear,informal,en-GB_to_en-US
+check-filenames =
+check-hidden =
+skip = ./.git,./dist,./package-lock.json,./poetry.lock
diff --git a/.github/workflows/spell-check-task.yml b/.github/workflows/spell-check-task.yml
new file mode 100644
index 00000000..07736b1e
--- /dev/null
+++ b/.github/workflows/spell-check-task.yml
@@ -0,0 +1,36 @@
+name: Spell Check
+
+# See: https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows
+on:
+  push:
+  pull_request:
+  schedule:
+    # Run every Tuesday at 8 AM UTC to catch new misspelling detections resulting from dictionary updates.
+    - cron: "0 8 * * TUE"
+  workflow_dispatch:
+  repository_dispatch:
+
+jobs:
+  spellcheck:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Install Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.9"
+
+      - name: Install Poetry
+        run: pip install poetry
+
+      - name: Install Task
+        uses: arduino/actions/setup-taskfile@master
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          version: 3.x
+
+      - name: Spell check
+        run: task general:check-spelling
diff --git a/README.md b/README.md
index 1f24cbe9..1a8b23b5 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 [![Integration Tests status](https://github.com/arduino/setup-taskfile/actions/workflows/test-integration.yml/badge.svg)](https://github.com/arduino/setup-taskfile/actions/workflows/test-integration.yml)
 [![Check Action Metadata status](https://github.com/arduino/setup-taskfile/actions/workflows/check-action-metadata-task.yml/badge.svg)](https://github.com/arduino/setup-taskfile/actions/workflows/check-action-metadata-task.yml)
+[![Spell Check status](https://github.com/arduino/setup-taskfile/actions/workflows/spell-check.yml/badge.svg)](https://github.com/arduino/setup-taskfile/actions/workflows/spell-check.yml)
 [![Check License status](https://github.com/arduino/setup-taskfile/actions/workflows/check-license.yml/badge.svg)](https://github.com/arduino/setup-taskfile/actions/workflows/check-license.yml)
 
 This action makes the `task` binary available to Workflows.
diff --git a/Taskfile.yml b/Taskfile.yml
index ad2efc36..a14b000c 100644
--- a/Taskfile.yml
+++ b/Taskfile.yml
@@ -14,3 +14,15 @@ tasks:
     cmds:
       - wget --output-document={{ .ACTION_METADATA_SCHEMA_PATH }} https://json.schemastore.org/github-action
       - npx ajv-cli validate --strict=false -s {{ .ACTION_METADATA_SCHEMA_PATH }} -d "action.yml"
+
+  general:check-spelling:
+    desc: Check for commonly misspelled words
+    cmds:
+      - poetry install --no-root
+      - poetry run codespell
+
+  general:correct-spelling:
+    desc: Correct commonly misspelled words where possible
+    cmds:
+      - poetry install --no-root
+      - poetry run codespell --write-changes
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 00000000..c4b22ecd
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,22 @@
+[[package]]
+category = "dev"
+description = "Codespell"
+name = "codespell"
+optional = false
+python-versions = ">=3.5"
+version = "2.0.0"
+
+[package.extras]
+dev = ["check-manifest", "flake8", "pytest", "pytest-cov", "pytest-dependency"]
+hard-encoding-detection = ["chardet"]
+
+[metadata]
+content-hash = "27fdeda232f6317a01e4d74e683463ea60641c751d7f656bef36d8fee849adb8"
+lock-version = "1.0"
+python-versions = "^3.9"
+
+[metadata.files]
+codespell = [
+    {file = "codespell-2.0.0-py3-none-any.whl", hash = "sha256:a10b8bbb9f678e4edff7877af1f654fdc9e27c205f952c3ddee2981ad02ec5f2"},
+    {file = "codespell-2.0.0.tar.gz", hash = "sha256:dd9983e096b9f7ba89dd2d2466d1fc37231d060f19066331b9571341363c77b8"},
+]
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000..e32c5cb1
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,11 @@
+[tool.poetry]
+name = "setup-taskfile"
+version = "0.0.0"
+description = "GitHub Actions action to install Task"
+authors = ["Arduino <info@arduino.cc>"]
+
+[tool.poetry.dependencies]
+python = "^3.9"
+
+[tool.poetry.dev-dependencies]
+codespell = ">=2.0.0"