There are many alternatives to Microsoft Project as a web app if you are looking for a replacement. The best open source Online alternative is Taiga.io. If that doesn't suit you, our users have ranked more than 100 alternatives to Microsoft Project and many of them are open source and available as a web app so hopefully you can find a suitable replacement. Other interesting open source Online alternatives to Microsoft Project are Kan.bn, Redmine, Kanboard and Plane.
Agile project management platform with visual Kanban and Scrum boards, issue and ticket tracking, customizable workflows, dashboard/reporting, time tracking, multilingual support, free and premium SaaS, Open Source, and integrations for team collaboration.
Open source kanban platform offering team collaboration, workspace members, board visibility controls, Trello import, card labelling, detailed activity logs, commenting, and self-hosting options, plus upcoming board templates and third-party integrations.
Redmine is a flexible project management web application. Written using Ruby on Rails framework, it is cross-platform and cross-database.
Open source alternative supporting project management, issue and task tracking, custom workflows, Kanban, list, calendar views, analytics, imports, secure encryption, Slack and GitHub integrations, Agile and Waterfall frameworks, and advanced customization.
Interactive tool transforming Markdown-like text into cascading timelines. Supports date styles, images, links, offers multiple views like calendar, map, Gantt, and timeline, with features for editing, tagging, and real-time updates, for seamless personal or professional use.
Open-source platform unifying project, document, issue, and task management with real-time team collaboration, instant messaging, video conferencing, and GitHub bidirectional sync, all in one customizable workspace for developers and product teams.
Comprehensive open source SaaS tool for managing tasks, tracking time and resources, offering user-friendly features for effective collaboration, scheduling, and meeting project deadlines efficiently.
Adaptive suite integrating project, IT service, and source code management for technology teams, featuring time tracking, issue and document management, customizable dashboards, third-party integration, agile and waterfall support, and cloud deployment options.
Introducing ProjectHive - the ultimate project management tool that brings all your projects, campaigns, and operations under one roof. With ProjectHive, you can easily manage and track your team's progress, assign tasks based on availability, and visualize project timelines...
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.
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I disagree with the poster who gave this a thumbs down. Not everyone looking for an alternative is looking for like-to-like. For instance if one has one's own webspace and a chromebook or skips between devices then a self hosted alternative with a free starting point would be quite attractive.