Microsoft Project files, without Windows
Run your Microsoft Project plans on a Mac. No Windows required.
Open, edit and save the real .mpp on Mac, iPad and the web. Lock the plan, track every day against it, and work on it together, live and end-to-end encrypted.
- Free to open any .mpp
- No Windows, no VM
- Saves back to Project
Free while in beta. You also get an email when the Mac and iPad apps launch. Beta Terms
Reads and writes .mpp from every Project since 2010
- Project 2010
- 2013
- 2016
- 2019
- 2021
- Microsoft 365
- Project Online exports
One plan file. Every device. Nothing lost on the way back to Project.
conversions. It opens and saves the .mpp itself.
platforms: native on Mac and iPad, and in the browser.
encrypted shared plans. We can’t read them.
to open any .mpp. No time limit, no trial.
Why teams switch
Stop working around the .mpp. Work in it.
A Windows VM, a converter or a viewer each solve part of the problem. MPP Studio solves all of it.
| What you need | MPP Studio | Project in a Windows VM | Convert to another app | A free .mpp viewer |
|---|---|---|---|---|
| Opens the real .mpp | Yes | Yes | Once, by import | Yes |
| Saves back to .mpp for Project | Yes | Yes | Often lossy | No |
| Native on Mac and iPad | Yes | No | Depends | Some |
| Lock the plan and track against it | Yes | Yes | Depends | No |
| Live editing together | Yes, end-to-end encrypted | No | Depends | No |
| Bring your own AI agent | Yes, built in | No | Rarely | No |
| Needs a Windows licence | No | Yes | No | No |
The whole schedule
The most complete .mpp editor outside Windows
Built for following a programme through to handover. Everything Project wrote that we don’t edit is saved exactly as it was.
Critical path, calculated the way Project does
An editable task outline beside a Gantt chart drawn on the GPU, so big programmes scroll and zoom without a stutter.
- Link tasks by dragging from bar to bar
- A grid that types like Project’s, keyboard first
- Phase colours and a critical path that grows as you plan
Lock the plan, then track against it
Lock Plan saves the agreed programme as the baseline. Actual starts, finishes and percent complete stay editable while the plan itself can’t drift.
- The plan’s bars under the live ones
- A forecast finish in the sidebar
- Saving still works while the plan is locked
Calendars built around shifts
Drag day, evening and night shifts into place. Public holidays are added by country and kept as rules, so Christmas is entered once.
- Holiday sets by country
- Calendar templates reused across projects
- Written into the file as Project exceptions
Every detail of a task, one click away
Dates, status, constraints, predecessors, successors, resources, custom fields and notes for any task, in light or dark.
- Actual start and finish, day by day
- Custom fields round-trip with Project
- Over-capacity flagged as you plan
Bring your own AI agent
Turn on the built-in MCP server and let Claude, Codex, Gemini CLI, Cursor or any MCP agent read and edit the open plan. No AI is sold or bundled.
- Off by default, protected by a token
- Every agent change is one undoable step
- A locked plan stays locked
Print it, share it, send it back to Project
The system Print dialog with a fit-to-one-page option for the site office wall, and a copy for Microsoft Project whenever you need one.
- Fit to one page
- PDF, Excel and XML exports
- Files open in Project as they should
More than a viewer. More than a file.
See all features →Live, together
A change on one iPad shows up on every Mac and browser on the plan. Owners, editors and viewers, plan by plan.
End-to-end encrypted
Shared plans are sealed on your device. Keys live in the Secure Enclave; our servers store data they can’t read.
Bring your own AI
A built-in MCP server, off until you turn it on. Claude, Codex, Cursor or any agent edits the open plan, one undo step at a time.
Quick Look
Press Space on an .mpp in Finder, Files or Mail and see the schedule as it prints, before you open anything.
Built for site, office and handover
Built for the people who run the programme
The plan is agreed once and locked. From then on actual starts, finishes and progress are recorded every day, on site with an Apple Pencil or in the office on a Mac, with a forecast for the finish that everyone can see.
No more Plan_v7_FINAL(2).mpp.
Built for you
Whoever sends you the .mpp, and whatever you do with it next.
Project and programme managers
Plan, lock and track on the Mac you already use.
Learn more →Site managers and contractors
Mark progress on the iPad, with shift calendars that match the site.
Learn more →PMOs and teams
Shared plans with roles, history and restore, on any device.
Learn more →Clients and reviewers
Open the .mpp you were sent, free, with no account.
Learn more →Leaving Project Online
Bring your exported plans to Mac, iPad and the web.
Learn more →Project Online is gone. Your plans don’t have to be.
A plan saved as an .mpp is complete. Bring it to MPP Studio and keep planning, tracking and sharing on the devices your team already has.
- 1Save your plans as .mppFrom Project, or from the export you already have.
- 2Open them in MPP StudioFree, on Mac, iPad or the web. Nothing to import.
- 3Share them with your teamLive, encrypted, with owners, editors and viewers.
Pricing
Start free. Pay when you edit.
One price covers Mac, iPad and the web. You pay for the app and use your own AI. Pay monthly or yearly.
Free
For opening and reviewing plans.
- Open any .mpp, 2010 to Microsoft 365
- Gantt chart, outline and critical path
- Print and PDF
- 3 plans in the cloud, view only
- Mac, iPad and web
Solo Pro
For the person who owns the plan.
- Everything in Free
- Edit and save .mpp
- Lock Plan, baselines and tracking
- Resources and shift calendars
- MCP server for your own AI agent
Team Pro
For everyone on the programme.
- Everything in Solo Pro
- Shared plans, edited live
- Owners, editors and viewers
- History with restore
- End-to-end encrypted
Enterprise
For organisations with rules to follow.
- Everything in Team Pro
- Volume licensing and invoicing
- Dedicated server, where you choose
- DPA on request
- Priority support
Questions before you switch
Anything else? See all questions or write to support@mppstudio.com.
Do I need Microsoft Project installed?
No. MPP Studio reads and writes the .mpp format itself. Files it saves open in Microsoft Project as they should.
Which versions of .mpp are supported?
Files from Microsoft Project 2010 through Microsoft 365.
Do I have to use AI?
No. MPP Studio has no AI of its own and never sends your plan to an AI provider. The MCP server is off until you turn it on, so you choose whether to use AI, and with which provider. Once connected, an agent handles what it reads under its own provider’s terms. Your responsibility
Can we work on the same plan at the same time?
Yes. Share a plan to MPP Studio Cloud and invite people as owners, editors or viewers. Everyone sees each change as it is made, and who else is in the plan. Changes made offline are merged when you are back online.
Can MPP Studio read our shared plans?
No. Shared plans are end-to-end encrypted: they are encrypted on your device before they leave it, and only the devices of the people on the plan hold the keys. Our servers store data they cannot read. How it works
Project Online is retired. Can I still open my plans?
Yes, if you have them as .mpp files. Project Online was retired on 30 September 2026, but a plan saved as an .mpp is complete: it opens and edits in MPP Studio on Mac, iPad and the web, and still in Microsoft Project. What the retirement means
When can I get it?
Now, on the web: the beta is open and free at app.mppstudio.com. MPP Studio is coming soon to the App Store for Mac and iPad. Beta members get an email the day it arrives.
Try MPP Studio now, free
The web beta is open, with Team Pro free for everyone. Make an account, open any .mpp in your browser, share plans and invite your team. You also get an email the day the Mac and iPad apps launch.
Free, with Team Pro until 30 days after launch. Beta Terms