ActiveCollab

ActiveCollab is a project management tool built for client work. Teams can run unlimited projects with tasks, subtasks, recurring tasks and templates, and view them as a list, a Kanban board or a Gantt chart. Built-in chat, comments and file sharing cover team communication. Clients can join for free and do not take a paid seat. Time tracking is included on every plan. The higher tier adds what service businesses need to bill for that time: estimates, invoicing, Stripe and PayPal payments, project budgets, profitability reports, workload and capacity planning, and a QuickBooks integration. Pricing starts with Plus, a flat-rate plan for up to 3 members. Pro is charged per user and adds unlimited members, time and expense reports, and Zapier, Slack and webhook integrations, plus an MCP server for AI assistants. Pro+ (Get Paid) is also per user and adds the financial and resource features. Annual billing is cheaper. Teams above 100 seats can get a quoted rate, and a self-hosted license is sold for a one-time fee. Education and nonprofit customers get 50% off. The product's history goes back to an open-source release in 2006. It suits agencies, consultancies and freelancers who want project delivery and billing in one place. The main limitation is a small integration ecosystem: reviewers frequently mention that there is no Microsoft Teams, Jira or Git integration. Interface customization is limited, and a task cannot be assigned to more than one person, which can frustrate larger or more complex teams.