MailLens - An offline mail Viewer

100% offline viewer for .msg & .eml files. Inspect emails, search, download attachments—zero network calls.

MailLens is a fast, 100% private, client-side email file viewer for Microsoft Outlook (.msg) and standard RFC 822 (.eml) files. Designed with a clean, familiar email interface, it allows you to open, search, read, and print email files directly on your computer without internet access or expensive software licenses. 🔒 100% Offline & Zero Data Collection • Complete Privacy: All email parsing occurs locally within your browser's memory. • Zero Network Activity: No remote servers, no telemetry, and no third-party analytics. Your sensitive emails and confidential files never leave your device. • Air-Gapped Ready: Operates seamlessly completely offline or in strict corporate firewall environments. ✨ Key Features • Outlook & Gmail Support: Open standalone Microsoft Outlook (.msg) files and Gmail/Thunderbird/Apple Mail (.eml) files with full fidelity. • Familiar UI: Enjoy an intuitive, clean interface with folders, search bar, and formatted message reading panes. • Attachment Handling: Preview, extract, and download file attachments (PDFs, spreadsheets, images, documents) with one click. • Multiple View Modes: Toggle effortlessly between Rich HTML, Plain Text, and Raw RFC/MIME Headers. • Fast Client-Side Search: Instantly filter and search through loaded messages by sender, subject, date, or message content. • Print & Export to PDF: Clean, printer-friendly layout for archiving emails or creating PDF records. • Drag-and-Drop: Simply drag single or multiple .msg and .eml files into the workspace to open them instantly. 💡 Who is MailLens for? • Professionals, lawyers, accountants, and consultants who need to review archived Outlook .msg files without a Microsoft 365 license. • Privacy-conscious users looking to inspect email archives and headers without uploading sensitive emails to online file conversion websites. • IT teams, forensic analysts, and developers inspecting raw MIME headers and message structures. Created with care by Shiven Gandhi. Support development: https://buymeacoffee.com/shivengandhi