PictShare is a free, open-source file sharing platform you can host yourself. It supports images, GIFs, videos, audio, Markdown, and text snippets, removes EXIF metadata automatically, and gives you full control over your uploads.

GitHub: https://github.com/HaschekSolutions/pictshare

More details: https://digitalescapetools.com/tools/tool.html?id=pictshare

More privacy-friendly tools: https://digitalescapetools.com/