I have been using iPiccy for my free online photo editing for quite some time. I have to say, it does what I need it to do and then some. For a free photo editing site, it offers many options to enhance your already beautiful photos.
You are not obligated to create an account, but it is free and does enable you to use more of the advanced editing options.
The basic editor options offers things such as auto-fix, cropping, and resizing.
The photo effects tool offers ways to change the color of your photos.
The retouch tool is great and offers options such as blemish fixer, shine remover, and airbrush.
Then, there are choices for designing, painting, frames, and textures.
You should be able to find just about anything you need for basic editing as well as a few advanced editing options with this website. I do recommend it. It is free, and perfect for the beginner photographer or even another option for the intermediate or advanced.