Dreamies.de

You can even save your images in galleries and make the private or public. and  even after adding a graphic

You can edit it, by clicking edit image and it will allow you to go to different  spots like online image editor   / or pixlr / picmonkey  / or dreamies edit,  all done from dreamies.de  

 As memphis says Lunapic  has lots to offer which I also use then I save to dreamies.