DevConverter is an online document and presentation converter. Amongst many others, we support PDF, PPTX, PPT, ODP. Thanks to our advanced conversion technology the quality of the output will be exactly the same as if the file was saved through the latest Microsoft Office 2019 suite.
.key files are presentations, created with Apple's presentation software Keynote, which is part of the iWork package. Keynote is availabe for Mac OS X and iOS and is a competitor to Microsoft Powerpoint. .key files can contain slides with pictures, charts, transitions and videos.