msgvault – archive a lifetime of email and chat

msgvault is an offline email archive tool that exports and stores email data locally with full-text search capabilities.

This is free and open source software.

Key Features

• Full Gmail backup: raw MIME, attachments, labels, and metadata.
• MBOX / Apple Mail import: import email from MBOX exports or Apple Mail (.emlx) directories.
  Interactive TUI: drill-down analytics over your entire message history, powered by DuckDB over Parquet.
• Full-text search: FTS5 with Gmail-like query syntax (from:, has:attachment, date ranges).
• MCP server: access your full archive at the speed of thought in Claude Desktop and other MCP-capable AI agents.
• DuckDB analytics: millisecond aggregate queries across hundreds of thousands of messages in the TUI, CLI, and MCP server.
• Incremental sync: History API picks up only new and changed messages.
• Multi-account: archive several Gmail accounts in a single database.
• Resumable: interrupted syncs resume from the last checkpoint.
• Content-addressed attachments: deduplicated by SHA-256.

Website: github.com/wesm/msgvault
Support:
Developer: Wes McKinney
License: MIT License

msgvault is written in Go. Learn Go with our recommended free books and free tutorials.

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