PPTX Player SDK – Play PowerPoint in the Browser
Play PowerPoint in the browser with every animation: a client-side PPTX to HTML/SVG engine that works offline.
One-time purchase.
What it is
PPTX Player SDK is a client-side JavaScript engine that renders PowerPoint .pptx decks to HTML and SVG and plays them click by click: entrance, exit and emphasis effects, morph transitions and embedded media. It runs offline in any modern browser or WebView, with no server conversion and no Office install. Full source included.
Quick start
python3 -m http.server 8000
open http://localhost:8000/demo.html
press → or Space to step through the deckCompared with
| Tool | Type | Notes |
|---|---|---|
| @web-ppt/viewer-core | Free npm package | Click animations and 41 transitions |
| pptx-viewer (ChristopherVR) | Free open source | 39 animation presets, 57 transitions including Morph |
| SlideKiln | Hosted conversion API | Free 2 conversions/month, Pro $29/month |
| Aspose.Slides | Server-side SDK | From $999 |
| PPTX Player SDK | Client-side engine, source included | $14 one-time; plays offline in the browser or a WKWebView |
FAQ
Can I play a PowerPoint file in the browser with its animations?
Yes. The engine renders each slide to HTML/SVG and steps through the click sequence: entrance, exit and emphasis effects, morph transitions and media.
Does it need a server or Microsoft Office?
No. Everything runs client-side. Serve the player folder from any static web server and open it in a browser.
Does it work offline or inside a native app?
Yes. It runs offline, and on iOS, iPadOS and macOS you can load the same folder in a WKWebView. Android and Electron WebViews work the same way.
What happens with a slide whose XML is broken?
The engine repairs stray & characters and plays the slide normally. If the XML is still broken, it renders what it can and reports an error instead of dropping the slide silently.
Is it a subscription?
No. One-time purchase, full source included.
Is there a free PPTX viewer for JavaScript?
Yes, for example @web-ppt/viewer-core and pptx-viewer. Pick this SDK if you want a single client-side engine with full source and no server, and you'd rather pay once than maintain a fork.
Which tier should I buy?
Developer is for one developer, and that includes shipping the player inside your own paid or free apps as bundled code. Commercial is for a company or organisation, where more than one person uses it, and adds priority email support. Neither lets you share the source itself. Both include the full source. One-time purchase.
What do I get after paying?
A zip with the full source, README and runnable demo. Polar shows the download right after checkout and in the receipt email.
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One-time purchase.