The best alternatives to Protect My Files are TunnelBear, Drive Password, and DBacked. If these 3 options don't work for you, we've listed a few more alternatives below.
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Notion— Get over $6,000 worth of Notion + unlimited AI, for free
Password manager that encrypts all your sensitive data and stores it in your Google Drive. You retain complete control over your data and know where it is stored. Familiar design and powerful team sharing features make it perfect fit for Google users.
DBacked is a command-line tool and SaaS product that creates, encrypts and stores backups of your MySQL, PostgreSQL or MongoDB database. It monitors your backups and sends you an email if a problem is detected. The CLI tool is open-source and free to use with your own S3 bucket.
ZERO ID protects you from data collectors and helps to keep your data private. It is an intuitive personal identity protection app for Mac with beautiful design and user-friendly interface.