Need to view EML files without Outlook, Thunderbird, or any email client? Our Free EML Viewer lets you open and read EML files with full formatting and attachments — no installation or email setup required.br br Free: br ✔ 100 free and lightweightbr ✔ View email content, headers, and attachmentsbr ✔ Supports EML files from all major email clients (Outlook Express, Thunderbird, Windows Mail, etc.