An open-source userscript manager with a rich browser support.
Steel Monkey enables userscript support in browsers that run WebExtensions. It works with most scripts for Greasemonkey and Tampermonkey.
Automatic updates based on the metadata
Script execution according to the order of the list
Supports GM functions
Supports both importing from and exporting to zip files
Integration with Dropbox, OneDrive, Google Drive, and WebDAV