Shameless plug for Filewatch (https://filewatch.net), a client-side web application I made which enables you to see who your Google Drive files and folders are shared with.
Filewatch doesn't get any information about you or your files, no information about your files leaves your browser.
The best way to find out if a company values your work enough to offer you a raise is to interview for other jobs, get an offer and hand in your notice. They'll soon offer you an increase if they want you to stay. It puts you in a strong negotiating position too.
Further details: https://www.gov.uk/government/organisations/government-digit...