OpenProject

AppFlowy is an open-source alternative to Notion that aims to overcome some of its limitations in terms of security and privacy.

Paymo is a work and project management solution for small-medium businesses and freelancers. This solution supports remote work and offers project planning, resource scheduling, team collaboration, time tracking, and more.

Coschedule is a marketing calendar that helps marketers see all of their marketing in one place using a calendar organizer, content organizer, asset organizer, and more.

GanttPRO is a project management software that facilitates project scheduling and implementation with the help of Gantt charts. Users can create tasks, assign them, set dependencies between them, and specify their start and end dates and duration.

GanttProject is a project management software with Gantt charts designed to help businesses create schedules, assign tasks and resources, view project status reports, track progress, and more.

Calligra Plan is a project management application for managing moderately large projects with multiple resources. Plan offers different types of task dependencies and timing constraints to enable you to model your project adequately.

Avaza is a business management solution that includes features for project management, resource scheduling, online timesheets, expense management, online invoicing, recurring invoicing, quotes and invoices, and more.

Coda is a document management and collaboration solution which helps businesses create documents and spreadsheets, streamlining processes related to project management, product launches, and more.

TeamGantt is a cloud-based Gantt chart and project planning solution for teams. It offers project collaboration tools, task management, file sharing, time tracking, and more.

Asana is a project management tool that keeps teams organized, on track, and on time. Asana allows you to keep track of project progress, plan sprints, integrate with other tools, and launch successful projects.