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Free MPP viewer

Open a Microsoft Project file in your browser: the Gantt chart, the task table and the critical path, without Microsoft Project.

A Project XML file is read in your browser and never leaves it. Any other file is converted on Onplana's servers, and the viewer asks first; the uploaded copy is deleted within 24 hours.

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Want to edit the plan and save it? Get Onplana Schedule, free for Windows and Mac

How to open an MPP file without Microsoft Project

  1. Choose Open a file above, or drop the file onto the viewer.
  2. A Project XML file opens straight away. For an .mpp or another format, the viewer asks before it sends a copy to be converted.
  3. Read the plan: switch between the Gantt chart and the task table, show the critical path, and run a free health check.

New to the format? What is an MPP file explains where it comes from and which apps open it.

Frequently asked questions

Do I need Microsoft Project to open an .mpp file here?

No. The viewer reads the file itself and draws the Gantt chart and the task table in your browser. Nothing to install and no account.

Is my file uploaded?

A Microsoft Project XML file is read in your browser and never leaves it. Any other file, including a binary .mpp, is converted on Onplana's servers, and the viewer asks before sending it. The uploaded copy is deleted within 24 hours.

How large a file can it open?

Up to 20 MB for a file that is converted on the server. A Project XML file read in your browser has no such limit beyond what your browser can hold.

Can I edit the plan and save it?

Not in the browser. To edit tasks, dates and links and save the plan as a Project XML file Microsoft Project opens, use Onplana Schedule, the free desktop app for Windows and Mac, which runs the same viewer.

What else can I see?

The critical path, the baseline, the task details, and a free schedule health check that scores the plan and lists what to fix. You can also export the chart as a PDF or picture and the task table as a CSV.