Mailward lets you open, read and search Outlook PST and OST files directly in your browser. Parsing happens locally inside a Web Worker, so your mailbox never leaves your device and nothing is uploaded. It works on Mac, Windows, Linux and Chromebook, with no Outlook installation required. Browse the full folder tree, read messages, preview and download attachments, and run fast full-text search across your whole archive. Reading and searching are completely free, and you can export up to three emails per day at no cost. When you need more, a one-time $19 Pro upgrade unlocks bulk export to MBOX or EML, with no subscription. Mailward is built for people who inherited an old archive, switched platforms, or simply need to find one message without installing heavy software or trusting a cloud converter with private email.

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