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Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
Pipedrive - Sales pipeline software that gets you organized. Helps you focus on the right deals, so easy to use that salespeople just love it. Great for small teams.
ASP.NET - ASP.NET is a free web framework for building great Web sites and Web applications using HTML, CSS and JavaScript.
Zoho CRM - Omnichannel CRM for Businesses of all sizes
Scotty - Scotty is a Haskell framework inspired by Ruby's Sinatra.
Copper - Copper (formerly ProsperWorks) is easy-to-use customer relationship management for small businesses. Capture contacts and sales leads direct from Gmail with our simple CRM.