How to Convert PPT to PPSX — Quick & Free
Fast, instant PPT to PPSX conversion. No signup required. Just drop your .ppt file and get .ppsx in seconds.
Batch Settings
Vous avez créé une présentation PowerPoint soignée et souhaitez qu'elle s'ouvre directement en mode diaporama, sans possibilité de modification intempestive ? La conversion de votre fichier PPT en PPSX est la solution idéale. Ce format, spécifiquement conçu pour la lecture automatique, garantit que votre audience se concentre sur votre message, sans être distraite par les outils d'édition. Que ce soit pour une démonstration commerciale cruciale, une conférence académique ou la diffusion d'informations au sein de votre organisation, le PPSX assure une expérience fluide et professionnelle. Notre outil vous permet d'effectuer cette transformation avec simplicité et efficacité, préservant l'intégrité de votre mise en page, de vos animations et de vos transitions. Offrez à vos présentations la finalité et l'impact qu'elles méritent.
- Dossiers administratifs pour le gouvernement québécois
- Publications scientifiques en Suisse romande
- Portfolios de design en Belgique
Dans l'espace francophone, notamment pour les appels d'offres ou les communications officielles, le PPSX est souvent privilégié pour sa nature « prête à l'emploi », garantissant que le contenu est présenté exactement comme prévu par l'auteur, sans altération possible.
About PPT to PPSX Conversion
Short answer: yes, you can convert PPT to PPSX online for free, and quality is well preserved with the right settings. Just upload your .ppt file to CocoConvert, pick PPSX as the output, and click Convert. The whole process takes seconds.
Now for the details. PPT is the legacy PowerPoint format (pre-2007). PPSX is a widely used file format. Converting between these two formats lets you convert between formats quickly.
Your PPT file is decoded and re-encoded as PPSX. Converting PPT to PPSX maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.
Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.
How to Convert PPT to PPSX
- 1
1. Upload PPT
Drop your .ppt file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select PPSX
Choose .ppsx from the output dropdown. Settings are pre-configured for best results.
- 3
3. Convert
One click. The server handles all the heavy lifting using FFmpeg and Sharp.
- 4
4. Download
Your .ppsx file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert PPT to PPSX
Your PPT file is decoded and re-encoded as PPSX.
Your PPT file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in PPSX format
The converted file is ready for download
Format Comparison
PPT
.ppt file
| Extension | .ppt |
| MIME Type | application/vnd.ms-powerpoint |
| Category | Presentation |
PPSX
.ppsx file
| Extension | .ppsx |
| MIME Type | application/vnd.openxmlformats-officedocument.presentationml.slideshow |
| Category | Presentation |
Should You Convert PPT to PPSX?
When to Convert
- ✓When you need a PPSX file
Frequently Asked Questions
Is PPT to PPSX conversion free?
Yes. CocoConvert offers free PPT to PPSX conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.
How fast is PPT to PPSX conversion?
Most files convert in 2–10 seconds depending on size. Large presentation files may take 30 seconds. Batch jobs process in parallel for maximum speed.
What happens to my files after conversion?
Your uploaded PPT file and the converted PPSX file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting PPT to PPSX lose quality?
Converting PPT to PPSX maintains high quality with CocoConvert's optimised encoder settings.
Can I convert PPSX back to PPT?
Yes, CocoConvert supports PPSX to PPT conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
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