SOPlanning!

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?

Microsoft Office Project gives you robust project management tools with the right blend of usability, power, and flexibility, so you can manage projects more efficiently and effectively. You can stay informed and control project work, schedules, and finances, keep project teams aligned, and be more productive through integration with familiar Microsoft Office system programs, powerful reporting, guided planning, and flexible tools.

Gantter is a project planning and management application running from a web-browser. With Gantter you can do similar things you do in Microsoft Project in a similar way: plan your project, review your plan using Gantt chart, manage project resources and calendars, review critical tasks, estimate project cost, control your project progress. Gantter supports different task dependencies (including lags between depending tasks), task constraints and task types. Gantter performs all the scheduling and other calculations to make planning easy. »

Planner is the GNOME project management tool.

Toms Planner allows you to create and share Gantt Charts online with "drag and drop" simplicity. It has great ease of use and gives control back to the project manager.

Collaborate online with your team. Designed with both power and simplicity in mind, Webplanner is a flexible and easy-to-learn tool that works for everyone.

Planning Pod is an online business and project management software app that pulls together 22 easy-to-use tools into one place ... get started today with a FREE trial.

Roadmap Planner is your strategic communication tool to build your marketing, business development and product vision roadmap, and show off it to your team and stakeholders at a glance. It will take you where you want to be in one, five, or 10 years.

Collaborate with your clients using messages, to-dos and Google Docs. Manage your budgets, track time and expenses, bid and invoice your clients. Each section flows into the next allowing you to eliminate redundant data entry. Manage the entire project with Torch Project Management.

Project Management for Mac OS X, iPhone, Android and Windows. Create a project plan in no time by entering tasks, duration and start dates. Use the interactive Gantt chart to edit and update the tasks. ** Supports Microsoft Project Plan Import/Export **

Ganttzilla is new free online service for viewing and sharing of MPP, MPX, XML (MS Project and Planner) file formats. This tool is using JavaScript only so it can be used for really wide broadcasting of Project Plans. No Flash, just Web Browser needed for viewing of Gantt and Resources.

With the Portfolio Planner, you benefit from an extended set of tools which allow you to plan, at once, all your projects and resources in the most realistic and efficient way. This means you will be able to use several new notions such as:

Resource Scheduler is a Gantt-based planning tool designed to graphically chart resources and associated tasks over a scheduled time frame. Engineers and planners can lay out long range project activities; make real-time adjustments as projects are executed and then view how the changes affect the entire project schedule. The tasks can be linked, so when one task moves, the linked tasks move as well.