Blacklight is described as 'free and open source ruby-on-rails based discovery interface (a.k.a. “next-generation catalog”) especially optimized for heterogeneous collections' and is an app in the Education & Reference category. There are six alternatives to Blacklight for a variety of platforms, including Linux, Online / Web-based, Mac, Windows and Self-Hosted solutions. The best alternative is VuFind, which is both free and Open Source. Other great apps like Blacklight are Omeka (Free, Open Source), Primo (Paid), encore (Paid) and Enterprise (Paid).
Omeka is a free, flexible, and open source web-publishing platform for the display of library, museum, archives, and scholarly collections and exhibitions. Its five-minute setup makes launching an online archive or exhibition as easy as launching a blog.
Meeting user expectations for quick, easy, and effective searching and retrieval, this "discovery system" is a one-stop solution for the discovery and delivery of local and remote resources, such as books, journal articles, and digital objects.
Imagine a search that isn’t deterred by misspellings or human error. Where results populate in “rooms” based on content categories or themes. Imagine a search that not only spans the physical library contents, but newswires, databases and multimedia.
A "discovery layer" that provides a fresh, modern interface for patrons of varied backgrounds to use independently. By providing a simple interface with a single search box, patrons are able to quickly find relevant results when they need them.