Review a presentation before a meeting, update text and images, and adjust slide layouts. Save as PPTX or export a PDF to share.
Files are opened and processed on your device, with no document upload or account required.
How it works
- Click Open your PPTX to launch the editor in your browser.
- Pick a .pptx file from your device, or drag and drop it onto the page.
- It renders locally with the OnlyOffice engine — page through the slides or edit them in place.
- Download it again as PPTX or PDF when you are done.
What you can do
- Open .pptx (and .ppt) presentation with editable layouts
- Edit slides, then download again as PPTX or PDF
- No Microsoft PowerPoint and no account
- Local files are opened, edited and converted on your device, without a document-processing server. The source code is public for inspection and self-hosting.
- Try the features you need while online, then use what your browser has saved offline. Opening files from links still needs a connection.
Whether a colleague sent you a deck to review, you need to pull a couple of slides for your own talk, or you just want to read a .pptx on a machine without Office installed, opening it here takes a few seconds. Because the render is produced by the same OnlyOffice engine used in its desktop apps, what you see matches what a teammate on PowerPoint will see — so you can review or tweak a deck with confidence and hand it straight back.
Frequently asked questions
Can I open a PPTX file without PowerPoint?
Yes. It opens PPTX directly in your browser — no PowerPoint needed.
Are slides, images and layout preserved?
Yes. The OnlyOffice engine preserves slide layouts, images, shapes and text.
Is my presentation uploaded?
No. When you open local files directly on this site, viewing, editing and conversion happen on your device without uploading your documents.
Can I edit the slides, not just view?
Yes. Edit slides and download again as PPTX or PDF.
Does it work with old .ppt files?
Yes. It opens both the modern .pptx and the older binary .ppt with the same OnlyOffice engine.
Can I export the deck to PDF?
Yes. Open the presentation, then choose Download as / Save as PDF — the PDF is produced on your device.
Are images and fonts preserved?
Yes. OnlyOffice keeps images, shapes, fonts and slide layout, so the deck looks as designed.