How to create or where to find a simple gantt chart?

Question

Project management

Faced with the need to build a Gantt chart for planning the timing of projects. It is necessary to be able to create one Gantt chart for all projects, so that you can set one project and several attachments for it (for example, development and layout), and so that all projects are built on the same time plane.
Are there such online services? Free or the ability to create such a form in google docs.

Answer 1

For a long time I myself was looking for such an application as a service, until I decided on this solution.