Randoku is described as 'Bookmark Manager. You can save bookmarks to articles, tutorials, videos or anything interesting you find online in your Randoku account privately and you can organise your bookmarks in thematic collections and classify them with relevant tags' and is an website in the Web Browsers category. There are more than 10 alternatives to Randoku, not only websites but also apps for a variety of platforms, including Google Chrome, Firefox, Internet Explorer and Safari. The best alternative is Raindrop.io, which is both free and Open Source. Other great sites and apps similar to Randoku are Diigo (Freemium), Pinboard (Paid), GGather (Freemium) and Bookmark Sidebar (Free, Open Source).
Pinboard is a bookmarking website intended for people who want to reliably keep track of large numbers of links. Its goals are to be useful, fight bloat, keep things fast, and stay small. Social bookmarking for introverts. m.pinboard.in
Collect any article you want to read later, image that inspired you or video you want to watch later. Save anything, never lose it and view it without ever leaving GGather. Organize your bookmarks with tags and notes. And GGather tags are special.
Bookmark Sidebar is an extension for Chrome, which adds a toggleable sidebar with all your bookmarks on the left or right side of your screen. You can sort, edit, delete or rearrange your bookmarks easily from within the sidebar.
LinkAce is meant to provide a long-term archive of links to websites, media files or anything else which has a valid URL. Store interesting articles, neat web tools or libraries you may use sometime in the future.
"Highlights - Highlighter and Web Clipper" chrome extension by Learning Paths, helps you organise your content across the internet. Highlight, Tag and add notes to relevant content across the internet.