Some highly rated free PowerPoint alternatives include Google Slides, Kingston Office Presentation and Haiku Deck. Other options, such as Prezi and PowToon, offer limited free usage, with full use and extra features offered to subscribers. Microsoft also provides a free PowerPoint web app with limited features.
Google Slides offers users a vast array of templates, fonts, embedded animations and videos they can select to create vibrant presentations, and it also allows them to upload and edit existing PPT files for greater flexibility. Kingston Office Presentation features a simple interface similar to PowerPoint 2003 and many of the same features, making it an option for those who don't wish to learn a new program. Haiku Deck lets users select items from online galleries to include in their presentations, and it also has an app for iPad for more versatility in creation.