diff --git a/mypy.ini b/mypy.ini
--- a/mypy.ini
+++ b/mypy.ini
@@ -11,5 +11,5 @@
 [mypy-pytest.*]
 ignore_missing_imports = True
 
-# [mypy-add_your_lib_here.*]
-# ignore_missing_imports = True
+[mypy-ndjson.*]
+ignore_missing_imports = True
diff --git a/requirements.txt b/requirements.txt
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,6 +4,7 @@
 vcversioner
 requests
 aiohttp
+ndjson
 plotly
 pandas
 numpy
diff --git a/swh/scanner/cli.py b/swh/scanner/cli.py
--- a/swh/scanner/cli.py
+++ b/swh/scanner/cli.py
@@ -76,7 +76,7 @@
 @click.option(
     "-f",
     "--format",
-    type=click.Choice(["text", "json", "sunburst"], case_sensitive=False),
+    type=click.Choice(["text", "json", "ndjson", "sunburst"], case_sensitive=False),
     default="text",
     help="select the output format",
 )
diff --git a/swh/scanner/model.py b/swh/scanner/model.py
--- a/swh/scanner/model.py
+++ b/swh/scanner/model.py
@@ -10,9 +10,10 @@
 from typing import Any, Dict, Tuple, Iterable
 from enum import Enum
 
+import ndjson
+
 from .plot import sunburst
 from .exceptions import InvalidObjectType
-
 from swh.model.identifiers import DIRECTORY, CONTENT
 
 
@@ -60,6 +61,9 @@
         if format == "json":
             print(json.dumps(self.toDict(), indent=4, sort_keys=True))
 
+        if format == "ndjson":
+            print(ndjson.dumps(dict_path for dict_path in self.iterate()))
+
         elif format == "text":
             isatty = sys.stdout.isatty()