diff --git a/scanpipe/tests/test_views.py b/scanpipe/tests/test_views.py
index 43ae6bd5af..b84fedd795 100644
--- a/scanpipe/tests/test_views.py
+++ b/scanpipe/tests/test_views.py
@@ -386,6 +386,18 @@ def test_scanpipe_views_project_details_download_output_view(self):
             response.headers["Content-Disposition"],
         )
 
+    def test_scanpipe_views_project_details_download_output_view_json_inline(self):
+        # https://github.com/aboutcode-org/scancode.io/issues/2210
+        json_file = self.project1.output_path / "results.json"
+        json_file.write_text('{"headers": []}')
+        url = reverse("project_download_output", args=[self.project1.slug, "results.json"])
+        response = self.client.get(url)
+        self.assertEqual("application/json", response.headers["Content-Type"])
+        self.assertEqual(
+            'inline; filename="results.json"',
+            response.headers["Content-Disposition"],
+        )
+
     def test_scanpipe_views_project_details_delete_input_view(self):
         random_uuid = str(uuid.uuid4())
         url = reverse("project_delete_input", args=[self.project1.slug, random_uuid])
diff --git a/scanpipe/views.py b/scanpipe/views.py
index 962fde218c..c1d7732bd6 100644
--- a/scanpipe/views.py
+++ b/scanpipe/views.py
@@ -1532,7 +1532,11 @@ def download_project_file(request, slug, filename, path_type):
     if not file_path.exists():
         raise Http404(f"{file_path} not found")
 
-    return FileResponse(file_path.open("rb"), as_attachment=True)
+    # JSON and plain text render safely in browsers: serve those inline so
+    # that e.g. JSON results open directly in the browser instead of always
+    # forcing a download.
+    as_attachment = file_path.suffix not in (".json", ".txt")
+    return FileResponse(file_path.open("rb"), as_attachment=as_attachment)
 
 
 @conditional_login_required