Are there any online or free tools for drawing Critical Path using the CPM method?

I already calculated all ES, EF, LS, LF and other parameters, now I'm looking for a tool to draw it. There doesn't appear to be any results after searching for "draw CPM" and other search keywords in Google.

2 Answers 2


There are many online and free tools for project planning:

LiquidPlanner, TomsPlanner, GanttProject (do a Google search for links) are some of the most popular.

Most of these will offer a free trial period, or limited number of projects, so you can get a feel for them.


There's a free spreadsheet here: https://www.vertex42.com/ExcelTemplates/critical-path-method.html that can do processes with up to 25 tasks with up to 6 dependencies per task. The author sells an extended version, but the free one works just fine for small projects.

I have no association with the author.

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