For creating and sharing animated GIFs from screen captures with captions and stickers, Zight is a powerful option. It has a GIF maker with captions and stickers, as well as AI-powered tools to add titles, descriptions and transcriptions to videos. Zight also has screenshot annotation tools, so it's good for business uses like training, onboarding and troubleshooting.
Another good option is Animaker, an online AI animation generator that lets you create studio-quality animated videos. It's got a character builder, a big library of assets and thousands of video templates. Animaker also has advanced video editing tools and can create animated GIFs, so it's good for a variety of professional and personal projects.
If you need a browser extension, Screencastify is a good option. It lets you record, edit and share videos right from the Chrome browser. It's got AI-generated captions in several languages so it's good for ESL students, and it's got features like quick editing and video assignment submission.