How to sync keynote with google slides?

The PowerPoint file format is compatible with Google Slides and Keynote.

I use a tool called CloudConvert. I don't think there is any native feature which allows this sync. However, here's how you can do it using CloudConvert: Head over to drive.google.com on your web browser and sign in with your Google account. Once you’re in the Google Drive home page, click on “New” located in the left pane. Next, choose “File upload” from the dropdown menu and find the Keynote file stored on your computer to upload it. Now, the file you uploaded will show up in Google Drive, as shown here. Right-click on the presentation file, click on “Open with” in the dropdown menu, and choose “CloudConvert”. CloudConverter is an online file conversion service that’s integrated into Google Drive. Once you’ve logged in, you’ll be taken to the conversion page. Here, use the dropdown as shown in the screenshot below and choose a file format that’s compatible with Google Slides like “PPT” or “PPTX”. Make sure you’ve checked the option to “Save output files to Google Drive” too and click on “Convert”. The file you converted will immediately show up in Google Drive.

I think Keynote syncs with Google pretty easily except for the animations.