diff --git a/openpype/hosts/tvpaint/plugins/create/convert_legacy.py b/openpype/hosts/tvpaint/plugins/create/convert_legacy.py
new file mode 100644
index 0000000000..79244b4fc4
--- /dev/null
+++ b/openpype/hosts/tvpaint/plugins/create/convert_legacy.py
@@ -0,0 +1,135 @@
+import collections
+
+from openpype.pipeline.create.creator_plugins import (
+    SubsetConvertorPlugin,
+    cache_and_get_instances,
+)
+from openpype.hosts.tvpaint.api.plugin import SHARED_DATA_KEY
+from openpype.hosts.tvpaint.api.lib import get_groups_data
+
+
+class TVPaintLegacyConverted(SubsetConvertorPlugin):
+    identifier = "tvpaint.legacy.converter"
+
+    def find_instances(self):
+        instances = cache_and_get_instances(
+            self, SHARED_DATA_KEY, self.host.list_instances
+        )
+
+        for instance in instances:
+            if instance.get("creator_identifier") is None:
+                self.add_convertor_item("Convert legacy instances")
+                return
+
+    def convert(self):
+        current_instances = self.host.list_instances()
+        to_convert = collections.defaultdict(list)
+        converted = False
+        for instance in current_instances:
+            if instance.get("creator_identifier") is not None:
+                continue
+            converted = True
+
+            family = instance.get("family")
+            if family in (
+                "renderLayer",
+                "renderPass",
+                "renderScene",
+                "review",
+                "workfile",
+            ):
+                to_convert[family].append(instance)
+            else:
+                instance["keep"] = False
+
+        # Skip if nothing was changed
+        if not converted:
+            self.remove_convertor_item()
+            return
+
+        self._convert_render_layers(
+            to_convert["renderLayer"], current_instances)
+        self._convert_render_passes(
+            to_convert["renderpass"], current_instances)
+        self._convert_render_scenes(
+            to_convert["renderScene"], current_instances)
+        self._convert_workfiles(
+            to_convert["workfile"], current_instances)
+        self._convert_reviews(
+            to_convert["review"], current_instances)
+
+        new_instances = [
+            instance
+            for instance in current_instances
+            if instance.get("keep") is not False
+        ]
+        self.host.write_instances(new_instances)
+        # remove legacy item if all is fine
+        self.remove_convertor_item()
+
+    def _convert_render_layers(self, render_layers, current_instances):
+        if not render_layers:
+            return
+
+        render_layers_by_group_id = {}
+        for instance in current_instances:
+            if instance.get("creator_identifier") == "render.layer":
+                group_id = instance["creator_identifier"]["group_id"]
+                render_layers_by_group_id[group_id] = instance
+
+        groups_by_id = {
+            group["group_id"]: group
+            for group in get_groups_data()
+        }
+        for render_layer in render_layers:
+            group_id = render_layer.pop("group_id")
+            if group_id in render_layers_by_group_id:
+                render_layer["keep"] = False
+                continue
+            render_layer["creator_identifier"] = "render.layer"
+            render_layer["instance_id"] = render_layer.pop("uuid")
+            render_layer["creator_attributes"] = {
+                "group_id": group_id
+            }
+            render_layer["family"] = "render"
+            group = groups_by_id[group_id]
+            group["variant"] = group["name"]
+
+    def _convert_render_passes(self, render_passes, current_instances):
+        if not render_passes:
+            return
+
+        render_layers_by_group_id = {}
+        for instance in current_instances:
+            if instance.get("creator_identifier") == "render.layer":
+                group_id = instance["creator_identifier"]["group_id"]
+                render_layers_by_group_id[group_id] = instance
+
+        for render_pass in render_passes:
+            group_id = render_pass.pop("group_id")
+            render_layer = render_layers_by_group_id.get(group_id)
+            if not render_layer:
+                render_pass["keep"] = False
+                continue
+
+            render_pass["creator_identifier"] = "render.pass"
+            render_pass["instance_id"] = render_pass.pop("uuid")
+            render_pass["family"] = "render"
+
+            render_pass["creator_attributes"] = {
+                "render_layer_instance_id": render_layer["instance_id"]
+            }
+            render_pass["variant"] = render_pass.pop("pass")
+            render_pass.pop("renderlayer")
+
+    def _convert_render_scenes(self, render_scenes, current_instances):
+        for render_scene in render_scenes:
+            render_scene["keep"] = False
+
+    def _convert_workfiles(self, workfiles, current_instances):
+        for render_scene in workfiles:
+            render_scene["keep"] = False
+
+    def _convert_reviews(self, reviews, current_instances):
+        for render_scene in reviews:
+            render_scene["keep"] = False