Note since ver 3 of api the old tutorial won't work anymore 1 Create your own API on api.imgur.com/oauth2/addclient 2 Upload the files in the root of your MyBB forum 3 Open jscripts / editor.js and find: 4 {type: 'button', name: 'img', sprite: 'image', insert: 'image', extra: 1, title: this.options.lang.title_image}, PHP: 5 Add after {type: 'button', name: 'imgur', insert: 'imgur', image: 'imgurbut.png', title: 'Upload to Imgur'}, PHP: 6 Find This step you will find inside the archive as the site won't permit that php code 7 Add after insertImgur: function() { MyBB.popupWindow('imgur.php', 'imgur', 240, 200); }, PHP: 8 Find case "image": this.insertIMG(); break; PHP: Add after case "imgur": this.insertImgur(); break; PHP: Download the atached files and upload them on root Don't forget to add your Client ID key on imgur.php on line 43 Download from here https://copy.com/HBbKWP4WPHBU