Liner - Put simply, Liner is a virtual highlighter. It works on PDFs and webpages in the same way a regular highlighter works on books and magazine clippings. Read more about Liner.
Mercury Reader - The Mercury Reader extension for Chrome removes ads and distractions, leaving only text and images...
Highly for Chrome - The highlighter your browser always wanted
Highlight - "Highlight" physical books through conductive pages 📖✨
LINER for Safari - Medium-style highlighter for Safari
Weava - Workspace to highlight, organize & collaborate on your research articles.