diff --git a/pkgs/applications/editors/vscode/extensions/default.nix b/pkgs/applications/editors/vscode/extensions/default.nix
index 1170b2db2768..4cc60195c9e3 100644
--- a/pkgs/applications/editors/vscode/extensions/default.nix
+++ b/pkgs/applications/editors/vscode/extensions/default.nix
@@ -1612,6 +1612,8 @@ let
         };
       };
 
+      elijah-potter.harper = callPackage ./elijah-potter.harper { };
+
       elixir-lsp.vscode-elixir-ls = buildVscodeMarketplaceExtension {
         mktplcRef = {
           name = "elixir-ls";
diff --git a/pkgs/applications/editors/vscode/extensions/elijah-potter.harper/default.nix b/pkgs/applications/editors/vscode/extensions/elijah-potter.harper/default.nix
new file mode 100644
index 000000000000..93e87a47131c
--- /dev/null
+++ b/pkgs/applications/editors/vscode/extensions/elijah-potter.harper/default.nix
@@ -0,0 +1,38 @@
+{
+  lib,
+  vscode-utils,
+  vscode-extension-update-script,
+  jq,
+  harper,
+  moreutils,
+  ...
+}:
+
+vscode-utils.buildVscodeMarketplaceExtension {
+  mktplcRef = {
+    name = "harper";
+    publisher = "elijah-potter";
+    version = harper.version;
+    hash = "sha256-m9PN1BZf6rLrNnX8meX2TjGx8zGLl0GgnHEgQirh9Oc=";
+  };
+
+  nativeBuildInputs = [
+    jq
+    moreutils
+  ];
+
+  postInstall = ''
+    cd "$out/$installPrefix"
+    jq '.contributes.configuration.properties."harper.path".default = "${harper}/bin/harper-ls"' package.json | sponge package.json
+  '';
+  passthru.updateScript = vscode-extension-update-script { };
+
+  meta = {
+    changelog = "https://github.com/Automattic/harper/releases/tag/v${harper.version}";
+    description = "The grammar checker for developers as a Visual Studio Code extension";
+    downloadPage = "https://marketplace.visualstudio.com/items?itemName=elijah-potter.harper";
+    homepage = "https://github.com/automattic/harper";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ MasterEvarior ];
+  };
+}