diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..e0151f5
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 John Pangalos
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index 95d423f..8e4d0ed 100644
--- a/README.md
+++ b/README.md
@@ -182,3 +182,7 @@ Releases are automated by [release-please](https://github.com/googleapis/release
 - `chore:`, `docs:`, `refactor:`, `test:`, `ci:`, `build:`, `perf:` — no bump; may appear in the changelog
 
 release-please opens a `chore(main): release X.Y.Z` PR that bumps `package.json` and updates `CHANGELOG.md`. Merging that PR tags the release and the binary-upload workflow publishes `wt-darwin-arm64` and `SHA256SUMS` to the GitHub Release.
+
+## License
+
+[MIT](LICENSE)
diff --git a/package.json b/package.json
index a1d7ab9..9cf87f8 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,7 @@
   "name": "wt",
   "version": "0.4.0",
   "description": "Pick and switch git worktrees from the shell. Opens each worktree in a new Ghostty tab via AppleScript.",
+  "license": "MIT",
   "bin": {
     "wt": "./bin/wt"
   },