MBOX Viewer
Search and browse MBOX email archives from Thunderbird, Apple Mail, Gmail Takeout, and any other MBOX-compatible client — instantly, in your browser.
What is an MBOX file?
MBOX is an open, widely-supported email storage format used by Mozilla Thunderbird, Apple Mail, Gmail (via Google Takeout), Evolution, Eudora, and many other email clients. Unlike proprietary formats like PST or OST, MBOX is a plain-text format where individual email messages are concatenated into a single file. This makes MBOX files highly portable but also very large — a full Gmail export can easily be tens of gigabytes. Evermail handles MBOX files of any size and from any source.
How Evermail handles MBOX files
Upload once. Search forever. No conversion, no special software needed.
Upload your MBOX file from Thunderbird, Apple Mail, Gmail Takeout, or any other source. Single files up to 100 GB on Enterprise plans.
Evermail splits, parses, and indexes every message in the MBOX archive — including multi-part MIME messages, attachments, and headers.
Search across all messages with full-text or AI-powered semantic search. Filter by sender, date, subject, attachment, or folder.
Key features for MBOX archives
Thunderbird, Apple Mail, Gmail Takeout, Evolution, Eudora, Claws Mail — any MBOX file from any client is supported.
Ask questions in plain language: 'Find my invoice from Acme Corp in 2021.' Evermail understands meaning, not just keywords.
Search by attachment name or type. Find every email with a PDF, spreadsheet, or image attached — across your entire archive.
Thunderbird folders and Gmail labels are preserved after import so you can browse your archive just like the original.
Download any email as EML. Export filtered results as a new MBOX for migration or long-term archiving.
Your MBOX data is stored exclusively on EU infrastructure. Full GDPR compliance built in from day one.
Open your MBOX archive today
No special software. No conversion. Upload, index, and search — free to start.
Get started free →