Anytxt Desktop Search might be a bit more popular than VanillaTreeViewer. We know about 1 link to it since March 2021 and only 1 link to VanillaTreeViewer. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I've spent the past year working on and refining VanillaTreeViewer (demo, screenshot), a minimalist file browser you can add to any website. Source: over 2 years ago
For something that could look into the files itself, you need something that can extract the text and index it. Something like AnyTXT, or Copernic can build the index, but then you need to script the renaming of files that match your search criteria. Source: almost 2 years ago
Files App - Files is a beautiful single-file PHP file browser and manager that can be dropped into any dir on your server, instantly creating a gallery of files and folders.
Everything by Voidtools - Everything. Locate files and folders by name instantly. Everything. Small installation file. Clean and simple user interface.
Quick Sync Me - Secure peer-to-peer file transfer in your browser
Agent Ransack - Agent Ransack is a tool for finding files and information on your hard drive fast and efficiently.
Uppy - The next open source file uploader for web browsers
DocFetcher - DocFetcher is a portable German/English open source desktop search application.