manyjars is described as 'minimal, opinionated reader for rss and atom' and is a RSS Reader in the News & Books category. There are more than 100 alternatives to manyjars, not only websites but also apps for a variety of platforms, including Android, iPhone, Android Tablet and Windows. The best alternative is Feedly, which is free. Other great sites and apps similar to manyjars are Tiny Tiny RSS (Free, Open Source), Flipboard (Free), NewsBlur (Freemium, Open Source) and Feedbro (Free).
Feedly is a better way to organize, read and share the content of your favorite sites. It weaves the content from the RSS feeds of your favorite websites into a fun magazine-like experience and provides seamless integration with social networks.
Tiny Tiny RSS is an open source web-based news feed (RSS/Atom) reader and aggregator, designed to allow you to read news from any location, while feeling as close to a real desktop application as possible.
NewsBlur is a personal news reader that brings people together to talk about the world. It shows you the original site and allows you to read stories directly off the site while keeping track of what you read. It also filters and highlights stories you like and dislike.