Yes, on pc, you can hit the download button in the web version under the save-slots to download the currently loaded savefile. Then you can use the upload button to load it in the standalone version. If playing the web version on mobile, open the site in desktop mode and do the same
I'm on pc. It doesn't seem to be working for some reason...
I get this when I try to upload the downloaded save file from the web browser, I've tried it on other websites too not just the standalone version. It gives me the same *error*.