Bubbleshow
A simple photo slideshow app... point to your pics & music, press F11 (fullscreen)... and off you go!
Select root photo folder and (optionally) music folders(s). Sub-folders will be searched and any photos or music found will be included. Add a "title.png" if you want a title slide. Captions come from EXIF Title/Description or from a file (format: filename→tab→captiontext)
Note: Your files are kept 100% locally in your browser. Your browser may show an "upload" confirmation dialog as a security measure. Don't worry... nothing is actually being "uploaded" anywhere. No servers, no clouds, no data scraping. Just a slideshow of files on your PC or Mac.
This site does probably does not work for mobile -- it's meant for desktop browsers.