The best free alternative to Instagantt is GanttProject, which is also Open Source. If that doesn't suit you, our users have ranked seven alternatives to Instagantt and three of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Instagantt are Gantt.io and dotProject.
GanttProject is a cross-platform desktop tool for project scheduling and management. It runs on Windows, Linux and MacOSX, it is free and its code is opensource. What can it do?
Gantt.io creates amazing Gantt charts for you in no time. Beautiful templates, a very intuitive and efficient interface, multi-user editing, time-travel as well as a high-res export function allow you to create THE chart that will convince your audience.
dotProject is a web-based, multi-user, multi-language project management application. It is free and open source software, and is maintained by an open community of volunteer programmers.
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