diff --git a/lib/LDV.pm b/lib/LDV.pm
index 6fb5df8..48bc392 100644
--- a/lib/LDV.pm
+++ b/lib/LDV.pm
@@ -17,6 +17,12 @@ sub startup {
   $self->app->mode('production');
   $self->app->secrets([ $self->app->config->{secret} ]);
 
+  $self->app->attr(json => sub {
+    require JSON;
+    my $json = JSON->new->utf8;
+    return $json;
+  });
+
   $self->app->attr(email => sub {
     require LDV::Email;
     my $email = LDV::Email->new($self->app->config->{email} // {});
diff --git a/lib/LDV/Imgbin.pm b/lib/LDV/Imgbin.pm
index 7bccafe..a87009c 100644
--- a/lib/LDV/Imgbin.pm
+++ b/lib/LDV/Imgbin.pm
@@ -5,7 +5,6 @@ use warnings;
 use utf8;
 
 use Mojo::Base 'Mojolicious::Controller';
-use JSON qw(encode_json decode_json);
 use Mojo::Asset::File;
 use Imager;
 
@@ -45,7 +44,7 @@ sub view {
   eval {
     my $path = $self->_data_path($time);
     my $data = Mojo::Asset::File->new(path => $path);
-    my $json = decode_json($data->slurp);
+    my $json = $self->app->json->decode($data->slurp);
     die("image expired\n") if (time() > $json->{expire});
     $json->{path} = $self->_image_path($time, $json->{format});
 
@@ -106,7 +105,7 @@ sub save {
     $upload->move_to($self->_image_path($time, $json->{format}, 'fullpath'));
 
     my $data = Mojo::Asset::File->new(path => $self->_data_path($time));
-    $data->add_chunk(encode_json($json));
+    $data->add_chunk($self->app->json->encode($json));
     $data->move_to($self->_data_path($time));
 
     $self->redirect_to("/imgbin/$time");
@@ -134,7 +133,7 @@ sub latest {
     @items = sort { $b <=> $a } @items;
     foreach my $time (splice(@items, 0, 10)) {
       my $data = Mojo::Asset::File->new(path => $self->_data_path($time));
-      my $image = decode_json($data->slurp);
+      my $image = $self->app->json->decode($data->slurp);
       $image->{path} = $self->_thumb_path($time);
       $image->{url}  = sprintf '/imgbin/%d', $time;
       push @images, $image;
@@ -162,7 +161,7 @@ sub prune {
     my $now = time();
     foreach my $time (@times) {
       my $data  = Mojo::Asset::File->new(path => $self->_data_path($time));
-      my $image = decode_json($data->slurp);
+      my $image = $self->app->json->decode($data->slurp);
       next if $image->{expire} > $now;
       unlink $self->_image_path($time, $image->{format}, 1);
       unlink $self->_thumb_path($time);
diff --git a/lib/LDV/Zerobin.pm b/lib/LDV/Zerobin.pm
index f2e02c9..39a4fc8 100644
--- a/lib/LDV/Zerobin.pm
+++ b/lib/LDV/Zerobin.pm
@@ -4,7 +4,6 @@ use strict;
 use warnings;
 use utf8;
 
-use JSON qw(encode_json decode_json);
 use POSIX qw(strftime tmpnam);
 use Mojo::Base 'Mojolicious::Controller';
 use Mojo::Asset::File;
@@ -21,7 +20,7 @@ sub _metadata_save {
 
   my $path = $self->_metadata_path($time);
   my $asset = Mojo::Asset::File->new;
-  $asset->add_chunk(encode_json($data));
+  $asset->add_chunk($self->app->json->encode($data));
   $asset->move_to($path);
 
   return 1;
@@ -35,7 +34,7 @@ sub _metadata_load {
   my $asset = Mojo::Asset::File->new(path => $path);
   $asset->cleanup(0);
 
-  return decode_json($asset->slurp);
+  return $self->app->json->decode($asset->slurp);
 }
 
 sub _content_path {