Congratulations OP, you have a very nice idea and I also visited your project. I have these few inputs;

• I think the essence of this project is to gather all the tools and make them easily accessible. But clicking through the whole page doesn't make the work simple. Just listing the project alphabetically with the logo by the right will be so nice. It will give fast access to the tools without categorising them.
• Is imgbb a community based hosting service? I think only TalkImg should be included.