The best tool to import EML files to Gmail is the professional Aryson EML Converter Tool recommended in the guide. It allows quick and secure migration of multiple EML files directly into Gmail without complex manual steps. This professional software supports bulk conversion, preserves data integrity, and offers a simple user interface. It also provides filter options and supports various formats like PST, PDF, and HTML. For a hassle-free and reliable solution, this tool is ideal for both technical and non-technical users.