diff --git a/frontends/ycdl_flask/backend/endpoints/channel_endpoints.py b/frontends/ycdl_flask/backend/endpoints/channel_endpoints.py
index 0ab9a60..4da56a6 100644
--- a/frontends/ycdl_flask/backend/endpoints/channel_endpoints.py
+++ b/frontends/ycdl_flask/backend/endpoints/channel_endpoints.py
@@ -2,6 +2,8 @@ import flask; from flask import request
 import itertools
 import traceback
 
+from voussoirkit import flasktools
+
 import ycdl
 
 from .. import common
@@ -13,7 +15,7 @@ site = common.site
 def get_all_channel_names():
     all_channels = {channel.id: channel.name for channel in common.ycdldb.get_channels()}
     response = {'channels': all_channels}
-    return jsonify.make_json_response(response)
+    return flasktools.make_json_response(response)
 
 @site.route('/channels')
 def get_channels():
@@ -84,20 +86,20 @@ def post_add_channel():
         try:
             channel_id = common.ycdldb.youtube.get_user_id(username=channel_id)
         except ycdl.ytapi.ChannelNotFound:
-            return jsonify.make_json_response({}, status=404)
+            return flasktools.make_json_response({}, status=404)
 
     channel = common.ycdldb.add_channel(channel_id, get_videos=True)
-    return jsonify.make_json_response(channel.jsonify())
+    return flasktools.make_json_response(channel.jsonify())
 
 @site.route('/channel/<channel_id>/delete', methods=['POST'])
 def post_delete_channel(channel_id):
     try:
         channel = common.ycdldb.get_channel(channel_id)
     except ycdl.exceptions.NoSuchChannel as exc:
-        return jsonify.make_json_response(exc.jsonify(), status=404)
+        return flasktools.make_json_response(exc.jsonify(), status=404)
 
     channel.delete()
-    return jsonify.make_json_response({})
+    return flasktools.make_json_response({})
 
 @site.route('/channel/<channel_id>/refresh', methods=['POST'])
 def post_refresh_channel(channel_id):
@@ -106,17 +108,17 @@ def post_refresh_channel(channel_id):
     try:
         channel = common.ycdldb.get_channel(channel_id)
     except ycdl.exceptions.NoSuchChannel as exc:
-        return jsonify.make_json_response(exc.jsonify(), status=404)
+        return flasktools.make_json_response(exc.jsonify(), status=404)
 
     channel.refresh(force=force)
-    return jsonify.make_json_response(channel.jsonify())
+    return flasktools.make_json_response(channel.jsonify())
 
 @site.route('/refresh_all_channels', methods=['POST'])
 def post_refresh_all_channels():
     force = request.form.get('force', False)
     force = ycdl.helpers.truthystring(force)
     common.ycdldb.refresh_all_channels(force=force, skip_failures=True)
-    return jsonify.make_json_response({})
+    return flasktools.make_json_response({})
 
 @site.route('/channel/<channel_id>/set_automark', methods=['POST'])
 def post_set_automark(channel_id):
@@ -128,7 +130,7 @@ def post_set_automark(channel_id):
     except ycdl.exceptions.InvalidVideoState:
         flask.abort(400)
 
-    return jsonify.make_json_response({})
+    return flasktools.make_json_response({})
 
 @site.route('/channel/<channel_id>/set_queuefile_extension', methods=['POST'])
 def post_set_queuefile_extension(channel_id):
@@ -137,4 +139,4 @@ def post_set_queuefile_extension(channel_id):
 
     channel.set_queuefile_extension(extension)
 
-    return jsonify.make_json_response({})
+    return flasktools.make_json_response({})
diff --git a/frontends/ycdl_flask/backend/endpoints/video_endpoints.py b/frontends/ycdl_flask/backend/endpoints/video_endpoints.py
index 61a30ac..70a1cdc 100644
--- a/frontends/ycdl_flask/backend/endpoints/video_endpoints.py
+++ b/frontends/ycdl_flask/backend/endpoints/video_endpoints.py
@@ -1,6 +1,8 @@
 import flask; from flask import request
 import traceback
 
+from voussoirkit import flasktools
+
 import ycdl
 
 from .. import common
@@ -29,7 +31,7 @@ def post_mark_video_state():
         common.ycdldb.rollback()
         flask.abort(400)
 
-    return jsonify.make_json_response({'video_ids': video_ids, 'state': state})
+    return flasktools.make_json_response({'video_ids': video_ids, 'state': state})
 
 @site.route('/start_download', methods=['POST'])
 def post_start_download():
@@ -46,4 +48,4 @@ def post_start_download():
         common.ycdldb.rollback()
         flask.abort(404)
 
-    return jsonify.make_json_response({'video_ids': video_ids, 'state': 'downloaded'})
+    return flasktools.make_json_response({'video_ids': video_ids, 'state': 'downloaded'})
diff --git a/frontends/ycdl_flask/backend/jsonify.py b/frontends/ycdl_flask/backend/jsonify.py
deleted file mode 100644
index 6faaaf9..0000000
--- a/frontends/ycdl_flask/backend/jsonify.py
+++ /dev/null
@@ -1,8 +0,0 @@
-import flask
-import json
-
-def make_json_response(j, *args, **kwargs):
-    dumped = json.dumps(j)
-    response = flask.Response(dumped, *args, **kwargs)
-    response.headers['Content-Type'] = 'application/json;charset=utf-8'
-    return response