If you're looking for a nice #sqlite webui, like phpmyadmin, that allows for viewing, editing, optimising and performance profiling. Look no further. Take a peek at my project LiteAdmin. It runs on #php, and contains no external dependencies.

https://github.com/martijndeb/liteadmin

It's a project that started because I needed it for my dayjob. It does contain a lot of AI code, and clearly marked as such. If that's not your thing, that's okay. If you think it's a decent project, leave a star, I could use the visibility to get accepted into some awesome lists.