Assembla is described as 'Online workspaces with best of breed tools like Tasks & Issue Management, SVN & Git Repositories, Kanban Cardwall, Wikis, File Sharing, GDocs & Dropbox Integration, Milestones Management, Time Tracking, Support Tool for Clients, Backlog Manager, Custom' and is a Project Management App in the Development category. There are more than 25 alternatives to Assembla for a variety of platforms, including Online / Web-based, Mac, Windows, Linux and Self-Hosted solutions. The best alternative is GitHub, which is free. Other great apps like Assembla are Bitbucket (Freemium), Redmine (Free, Open Source), Kanban Tool (Paid) and Microsoft Project (Paid).
GitHub is a web-based hosting service for projects that use the Git revision control system. It is written in Ruby on Rails by Logical Awesome developers Chris Wanstrath, PJ Hyett, and Tom Preston-Werner.
Code collaboration version control. Offers hosted (freemium) for limited (5) users, and a commercial self-hosted for a subscription. Free licenses are available for qualified open source projects, nonprofits, and classrooms.
GitBucket is the easily installable open-source GitHub clone written with Scala. It provides GitHub like UI and features such as Git repository hosting via HTTP and SSH, repository viewer, issues, wiki and pull request.
Travis CI is a leading provider of continuous integration and delivery services and empowers software development teams to test and deploy their applications with confidence. Teams can easily sync their cloud platform projects with Travis CI to begin testing code in minutes.
ZenTao is an open source project management tool, supporting Scrum. It integrates product management, project management, bug management and QA management, etc., covering all lifecycle of software development.
Drone is a Continuous Delivery system built on container technology. Drone uses a simple YAML configuration file, a superset of docker-compose, to define and execute Pipelines inside Docker containers.