The best alternatives to WebRemarks are CleanShot, Kap, and Gifable. If these 3 options don't work for you, we've listed a few more alternatives below.
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AssemblyAI— Speech-to-Text API with superhuman accuracy
Gifable is a super-simple screen recording tool that makes GIFs for you in seconds. PERFECT FOR • Blogs • Tutorials • Sharing with colleagues or friends • Social Media
The simplest and most reliable Chrome extension for taking a screenshot of an entire webpage. In one click screenshot a full page. Optionally crop, edit, and annotate your result in a modern interface. Export to image, PDF, or copy to your clipboard so you can share it with others or keep it in your own records.