Kernel Gmail Backup is a reliable tool designed to backup Gmail mailboxes and save your emails offline. It preserves not only the email content but also metadata and attachments. The software allows you to save your Gmail data in multiple formats, including PST, MSG, EML, PDF, DOC, and HTML, offering flexibility based on your needs. With this tool, you can ensure that your important Gmail data is securely backed up and accessible offline, providing protection against accidental deletion or data loss.