What presentation software does and why the choice matters

A presentation tool is software that lets you build slides — text, images, charts, video — and show them to an audience. The main options are Microsoft PowerPoint (desktop and online), Google Slides (online only), and Apple Keynote (Mac and iPad). Each one works differently, costs different amounts, and stores your files in different places. The choice affects how easily you can share work with colleagues, whether you can edit offline, and what happens to your files if you stop paying.

Most people pick based on what their workplace already uses, which is usually the right call — compatibility matters more than features. But if you have a choice, the real difference is between desktop software (PowerPoint), cloud-first software (Google Slides), and a middle ground (Keynote). Understanding those differences helps you avoid the frustration of learning a tool that doesn't fit how you actually work.

Key Takeaways

  • PowerPoint works offline and on Windows or Mac, but requires a subscription or one-time purchase and stores files on your computer unless you actively sync them.
  • Google Slides lives in your browser, syncs automatically, and works on any device, but requires an internet connection and offers fewer design controls than PowerPoint.
  • Keynote is free on Apple devices and produces polished slides quickly, but only works on Mac, iPad, or iPhone, and sharing with Windows users requires extra steps.
  • The tool your workplace already uses should usually win — switching costs time and creates compatibility headaches that outweigh feature differences.
  • File format matters: PowerPoint files (.pptx) open in most tools, but Google Slides and Keynote files need conversion or cloud access to open elsewhere.

PowerPoint: The standard, with offline work and more control

PowerPoint is the most common presentation software, which means most workplaces have it, most templates are built for it, and most people know how to use it. It comes in two forms: a desktop version you install on Windows or Mac, and a web version you access through a browser. The desktop version works offline — you can build slides on a plane or in a location with no internet. The web version syncs to OneDrive (Microsoft's cloud storage) automatically, so you can pick up where you left off on another device.

The desktop version requires either a Microsoft 365 subscription (which includes Word, Excel, and other Office apps) or a one-time purchase of Office Home & Student or Office Home & Business. Pricing varies by region and changes periodically. The web version is free if you have a Microsoft account, but the desktop version gives you more design options, better performance with large files, and the ability to work without internet. If you already pay for Microsoft 365 for other reasons, PowerPoint is included and costs nothing extra.

The main trade-off: PowerPoint files live on your computer by default. If you want to access them from another device, you have to manually save them to OneDrive or email them to yourself. This is safer if you want to keep sensitive work private, but it means you have to think about file location. Google Slides and Keynote handle this automatically.

Google Slides: Always synced, works anywhere, fewer design options

Google Slides is a presentation tool that lives entirely in your web browser. You open it, build your slides, and everything saves automatically to Google Drive. You can access the same presentation from your phone, tablet, laptop, or desktop computer — whichever device you pick up, your latest changes are there. You can also invite others to edit the same presentation at the same time, and you see their changes in real time. This makes it the easiest choice for remote teams or group projects.

Google Slides is free with a Google account. You get unlimited storage for presentations (though Google Drive has a total storage limit of 15 GB free, shared across Gmail, Drive, and Photos). If you need more storage, Google One (Google's paid plan) starts at a few dollars per month. There is no desktop version and no offline editing — you need an internet connection to work. Google does offer an offline mode in Chrome, but it is limited and requires setup in advance.

The design tools in Google Slides are simpler than PowerPoint. You have fewer fonts, fewer animation options, and less control over exact positioning. If you are building a polished presentation for a major client or investor, PowerPoint usually gives you more flexibility. If you are building slides for a team meeting or a class, Google Slides is usually enough and saves you the hassle of file management.

Keynote: Fast and beautiful on Apple devices, limited elsewhere

Keynote is Apple's presentation software. It is free on Mac, iPad, and iPhone if you bought the device in the last few years. It produces visually polished slides quickly — the templates are well-designed and the software is responsive. If you work only on Apple devices and your audience does too, Keynote is a strong choice. It syncs across your devices through iCloud, so you can start a presentation on your Mac and finish it on your iPad.

The catch: Keynote only works on Apple devices. If your workplace uses Windows, or if you need to share files with Windows users, Keynote becomes complicated. You can export a Keynote presentation as a PowerPoint file (.pptx), but the conversion sometimes breaks animations, fonts, or layout. You can also share a Keynote file through iCloud and let Windows users view it in a browser, but they cannot edit it. If you are the only person using the presentation, this is fine. If others need to edit it, you are back to exporting and converting.

Keynote is worth choosing only if you are certain your entire workflow stays on Apple devices. If there is any chance you will need to hand a presentation to a Windows user or collaborate with someone on a non-Apple device, PowerPoint or Google Slides is safer.

Compatibility and file format: Why your choice affects others

Presentation files come in different formats. PowerPoint uses .pptx (or the older .ppt). Google Slides stores files in Google's own format but can export to .pptx. Keynote uses .key but can export to .pptx. The .pptx format is the closest thing to a universal standard — most presentation software can open it, though sometimes with minor formatting changes.

If you build a presentation in Google Slides and need to send it to someone who uses PowerPoint, you export it as .pptx and email it. They open it in PowerPoint and it usually looks the same, though occasionally animations or fonts shift slightly. If you build in Keynote and export to .pptx, the same thing happens. But if you build in PowerPoint and send the .pptx file to someone using only Google Slides, they can open it in Google Slides, but they cannot save changes back to the .pptx format without exporting again — Google Slides works best with its own format.

The practical rule: if you work in a mixed environment (some people on Windows, some on Mac; some using PowerPoint, some using Google Slides), build in PowerPoint or Google Slides, not Keynote. Both of those export cleanly to .pptx, which opens everywhere. If your entire team uses the same software, the format question disappears.

Offline work, internet dependency, and where your files live

PowerPoint desktop works offline. You can build slides on a plane, in a basement, or anywhere without internet. When you reconnect, your changes stay on your computer. Google Slides requires internet — if your connection drops, you cannot edit until it comes back. Keynote on Mac works offline, but Keynote on iPad or iPhone depends on internet for syncing.

This matters if you travel, work in locations with unreliable internet, or straightforward want to work without being connected. If offline work is important to you, PowerPoint desktop is the clear choice. If you are always online or rarely need to edit presentations away from a desk, Google Slides removes the file management burden and is simpler.

File location also matters for privacy and control. PowerPoint files on your desktop are yours — they live on your computer, and you decide whether to sync them to the cloud. Google Slides files live on Google's servers by default. If you care about keeping sensitive work off the cloud, PowerPoint is safer. If you want automatic backup and access from anywhere, Google Slides is safer. Keynote files sync through iCloud, so they live on Apple's servers.

Cost comparison and what you actually pay

Google Slides is free. You need a Google account, which is also free. If you need more than 15 GB of storage across all Google services, Google One costs a few dollars per month depending on your region.

Keynote is free on Apple devices. If you do not own a Mac, iPad, or iPhone, you cannot use it.

PowerPoint costs money unless you already have it. Microsoft 365 (the subscription) includes PowerPoint, Word, Excel, Outlook, and other apps. The cost varies by region and plan — a personal plan is typically a few dollars per month, and a family plan is higher. Office Home & Student (one-time purchase) is a higher upfront cost but no monthly fee. The web version of PowerPoint is free with a Microsoft account, but the desktop version (which has more features) requires a subscription or purchase.

If you already pay for Microsoft 365 for Word or Excel, PowerPoint costs nothing extra. If you do not, Google Slides is the cheapest option. If you own Apple devices and work only on them, Keynote is free and worth using.

Collaboration features and sharing with others

Google Slides is built for real-time collaboration. You invite someone by email, they open the presentation in their browser, and you both see each other's changes when ready. You can see who is editing which slide, leave comments, and resolve them. This is the easiest way to work on a presentation together.

PowerPoint online has similar collaboration features — you can share a file stored on OneDrive, and multiple people can edit at the same time. The desktop version does not have real-time collaboration; you have to save to OneDrive and let others open it, which means you are not editing at the same time. If you need to collaborate in real time, PowerPoint online works, but Google Slides is simpler because it is always online.

Keynote on Mac can share through iCloud, and multiple people can edit at the same time, but only if everyone is on Apple devices. If a Windows user needs to collaborate, you have to export to PowerPoint format, which breaks the real-time sync.

If collaboration is a regular part of your work, Google Slides or PowerPoint online is the right choice. If you mostly work alone and occasionally share finished presentations, any of the three works.

Frequently Asked Questions

Can I use Google Slides if my workplace uses PowerPoint?

Yes. You can build in Google Slides and export as a .pptx file to send to colleagues who use PowerPoint. The presentation usually looks the same, though occasionally animations or fonts shift slightly. If you need to collaborate with others in real time, Google Slides is actually easier than PowerPoint desktop, even if they use PowerPoint.

What happens to my Google Slides if I delete my Google account?

Your presentations are deleted. Google Slides files live on Google's servers, not on your computer. If you want to keep a copy, export it as a .pptx file and save it to your computer or another cloud service. This is a good practice for any important presentation.

Can I use PowerPoint on my iPad?

Yes, Microsoft has a PowerPoint app for iPad. It is free to view presentations, but editing requires a Microsoft 365 subscription. The app syncs with OneDrive, so you can start a presentation on your desktop and finish it on your iPad. The design tools are more limited on iPad than on desktop.

Is PowerPoint worth buying if I only make a few presentations a year?

Probably not. Google Slides is free and handles occasional presentations well. If your workplace requires PowerPoint or you need advanced design features, it is worth it. Otherwise, Google Slides saves you the cost and the file management hassle.

Can I open a PowerPoint file in Google Slides?

Yes. Upload the .pptx file to Google Drive, and Google Slides opens it. You can then edit it in Google Slides. When you export it back to PowerPoint format, most formatting stays the same, though some animations or complex layouts may shift slightly. Always check the result before sending it to someone else.