diff --git a/licomp_toolkit/format.py b/licomp_toolkit/format.py
index 263ef75..31e1a77 100644
--- a/licomp_toolkit/format.py
+++ b/licomp_toolkit/format.py
@@ -3,6 +3,7 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 import json
+import yaml
 
 class LicompToolkitFormatter():
 
@@ -12,6 +13,10 @@ def formatter(fmt):
             return JsonLicompToolkitFormatter()
         if fmt.lower() == 'text':
             return TextLicompToolkitFormatter()
+        if fmt.lower() == 'yaml':
+            return YamlLicompToolkitFormatter()
+        if fmt.lower() == 'yml':
+            return YamlLicompToolkitFormatter()
 
     def format_compatibilities(self, compat):
         return None
@@ -39,6 +44,20 @@ def format_licomp_licenses(self, licomp_licenses):
     def format_licomp_versions(self, licomp_versions):
         return json.dumps(licomp_versions, indent=4)
 
+class YamlLicompToolkitFormatter():
+
+    def format_compatibilities(self, compat):
+        return yaml.safe_dump(compat, indent=4)
+
+    def format_licomp_resources(self, licomp_resources):
+        return yaml.safe_dump(licomp_resources, indent=4)
+
+    def format_licomp_licenses(self, licomp_licenses):
+        return yaml.safe_dump(licomp_licenses, indent=4)
+
+    def format_licomp_versions(self, licomp_versions):
+        return yaml.safe_dump(licomp_versions, indent=4)
+
 class TextLicompToolkitFormatter():
 
     def format_licomp_resources(self, licomp_resources):
diff --git a/requirements.txt b/requirements.txt
index b1147e6..01323f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,3 +6,4 @@ licomp-proprietary == 0.5.*
 licomp-hermione == 0.5.*
 licomp-gnuguide == 0.5.*
 foss-flame
+PyYaml