Lossless Format Upgrade
Modernize legacy .ppt files to the more powerful and versatile .pptx format.
PPT to PPTX Online
Upgrade legacy .ppt files to modern .pptx for better compatibility across Office versions.
Drop your file here
or click to select · .pptx,.ppt
Task History
Results retained for 24 hLoading…
How to Use
Upload your file
Drag and drop your file or click to browse from your device.
Process automatically
Our service processes your file securely on the server.
Download result
Once processing finishes, download the result in one click.
Why use DeckFlow for this?
Unlock Advanced Effects
Enable modern transitions and "Morph" effects on older documents.
Enhanced Compatibility
Perfect fit for the latest Office versions and all mobile document viewers.
Rapid Cloud Processing
Powered by DeckFlow's high-performance engine for instant, zero-wait conversion.
Frequently asked questions
Will any content be lost during the conversion?
The conversion preserves all content, including text, images, charts, and basic animations. Some advanced legacy features may be simplified.
Will the layout break after conversion?
DeckFlow's engine ensures high-fidelity conversion, precisely adapting legacy .ppt layouts to the modern .pptx format.
Why should I convert PPT to PPTX?
PPTX is a modern, XML-based format that is smaller, more stable, and supports advanced animations and "Morph" transitions.
Is it free to use?
Yes. Sign up for a free account to get credits and start conversion. Guests can upload a file, but processing begins after sign-up. Free accounts support uploads up to 30 MB.