2 files changed, 23 insertions, 0 deletions
diff --git a/cli/tests/unit/file_test.ts b/cli/tests/unit/file_test.ts
index 23583ac2e..26ee110b6 100644
--- a/cli/tests/unit/file_test.ts
+++ b/cli/tests/unit/file_test.ts
@@ -99,3 +99,14 @@ Deno.test(function fileUsingNumberFileName() {
 Deno.test(function fileUsingEmptyStringFileName() {
   testSecondArgument("", "");
 });
+
+Deno.test(function inspectFile() {
+  assertEquals(
+    Deno.inspect(new File([], "file-name.txt")),
+    `File { name: "file-name.txt", size: 0, type: "" }`,
+  );
+  assertEquals(
+    Deno.inspect(new File([], "file-name.txt", { type: "text/plain" })),
+    `File { name: "file-name.txt", size: 0, type: "text/plain" }`,
+  );
+});
diff --git a/ext/web/09_file.js b/ext/web/09_file.js
index 94981a2f4..fd0451438 100644
--- a/ext/web/09_file.js
+++ b/ext/web/09_file.js
@@ -535,6 +535,18 @@ class File extends Blob {
     webidl.assertBranded(this, FilePrototype);
     return this[_LastModified];
   }
+
+  [SymbolFor("Deno.customInspect")](inspect) {
+    return inspect(createFilteredInspectProxy({
+      object: this,
+      evaluate: ObjectPrototypeIsPrototypeOf(FilePrototype, this),
+      keys: [
+        "name",
+        "size",
+        "type",
+      ],
+    }));
+  }
 }
 
 webidl.configurePrototype(File);