Contacts-Go

You can manage your contacts with a privacy-focused approach using this Flutter and Go-based application. It features local SQLite storage and file-based auto-backup into a .json file, which you can easily integrate with services like Syncthing, Dropbox, or OneDrive. This tool includes a T9 dialer, supports VCF, CSV, and LDIF import/export, and follows Material You design principles. You can use it without creating accounts or worrying about cloud lock-in.