But this file-based bookmarking system totally support tags :)

Example:

  - Let's say you bookmark my article https://afewthingz.com/browserbookmark

  - drag and drop => it creates a file "The best browser bookmarking system is already built-in.url"

  - you rename this file into "The best browser bookmarking system is already built-in #tag1 #tag2 #productivity.url" in 2 seconds

  - later when searching, you search with query="bookmarking #productivity", bam, you find it with tag "productivity" :)

You can put all .url files in a single folder with "#tags" in the filename. It works exactly like a tagging system, no more, no less.