# Mbox Viewer

> Native mbox viewer for Mac and Windows. Open MBOX files from Thunderbird, Gmail / Google Takeout, Apple Mail and any client that exports standard mbox — up to 50+ GB, fully offline.

## Key facts
- Platform: macOS 14 Sonoma and later (Apple Silicon + Intel) and Windows 10/11 & Windows Server.
- Distribution: Mac App Store and Microsoft Store. Free up to 500 MB; Pro (unlimited size) is a one-time in-app purchase. No subscription, no account, no web payments.
- Privacy: 100% local, no cloud, no telemetry, strictly read-only.
- Performance: opens a 50 GB MBOX in under 5 minutes; re-opens in under 1 second via a binary index.
- Languages: the app's interface and user guide are localized into 18 languages (English, Español, Deutsch, Français, Italiano, 日本語, 한국어, Nederlands, Polski, Português (BR), Português (PT), Русский, Svenska, Dansk, Norsk, Türkçe, 简体中文, 繁體中文). The website is in 10 languages.
- Based on the open-source terminal tool mboxShell (https://github.com/dcarrero/mboxshell).
- Author: David Carrero Fernández-Baillo · Color Vivo Internet, S.L. (https://colorvivo.com).

## Download
- Mac App Store: https://apps.apple.com/app/mbox-viewer-pro/id6759237715
- Microsoft Store: https://apps.microsoft.com/store/detail/9NW3GVFG7DDB

## Pages
- Home: https://mboxviewer.net/
- Features: https://mboxviewer.net/features/
- Compare: https://mboxviewer.net/compare/
- Changelog: https://mboxviewer.net/changelog/
- Guides: https://mboxviewer.net/guides/
- Blog: https://mboxviewer.net/blog/
- FAQ: https://mboxviewer.net/faq/
- Glossary: https://mboxviewer.net/glossary/
- mboxShell (open-source terminal tool this app is based on): https://mboxviewer.net/mboxshell/
- Support: https://mboxviewer.net/support/

## Guides
- How to Export Gmail with Google Takeout (and Open It on Mac): https://mboxviewer.net/guides/how-to-export-gmail-with-google-takeout/
- How to Open an MBOX File on Mac (Even Huge Ones): https://mboxviewer.net/guides/how-to-open-mbox-file-on-mac/
- How to Convert MBOX to CSV, EML, and Text (and Extract Attachments): https://mboxviewer.net/guides/convert-mbox-to-csv-and-eml/
- Mbox Viewer Search Syntax Cheat Sheet: https://mboxviewer.net/guides/search-syntax-cheat-sheet/
- How to Open a Thunderbird MBOX File on Mac: https://mboxviewer.net/guides/how-to-open-thunderbird-mbox-on-mac/
- How to Open an Apple Mail Export (.mbox Folder) on Mac: https://mboxviewer.net/guides/how-to-open-apple-mail-export-on-mac/
- How to Open an MBOX File on Windows (Any Size): https://mboxviewer.net/guides/how-to-open-mbox-file-on-windows/
- How to Open a Thunderbird MBOX File on Windows: https://mboxviewer.net/guides/how-to-open-thunderbird-mbox-on-windows/
- How to Open a Gmail (Google Takeout) MBOX File on Windows: https://mboxviewer.net/guides/how-to-open-gmail-takeout-mbox-on-windows/
- How to Open an Apple Mail Export (.mbox) on Windows: https://mboxviewer.net/guides/how-to-open-apple-mail-export-on-windows/
- How to Convert Outlook PST/OLM to MBOX (Mac & Windows): https://mboxviewer.net/guides/convert-outlook-pst-olm-to-mbox/

## Blog
- What's New in Mbox Viewer 2.8.2: Merging Mailboxes, Rebuilt: https://mboxviewer.net/blog/whats-new-in-mbox-viewer-2-8-2/
- What's New in Mbox Viewer 2.7.0: Faster, More Private, More Accessible: https://mboxviewer.net/blog/whats-new-in-mbox-viewer-2-7-0/
- A Field Guide to Email Storage Formats: History, Anatomy and a Comparison: https://mboxviewer.net/blog/email-formats-history-and-anatomy/
- MBOX, EML, PST, OLM: Email Archive Formats Explained: https://mboxviewer.net/blog/email-archive-formats-explained/
- Reading Old Email Archives from Eudora, Entourage and Other Classic Clients on a Modern Mac: https://mboxviewer.net/blog/read-old-email-archives-on-modern-mac/
- Why You Should Back Up Your Gmail Locally (and How): https://mboxviewer.net/blog/why-back-up-your-gmail/
- Introducing Mbox Viewer: Open Any MBOX or EML File, Instantly: https://mboxviewer.net/blog/introducing-mbox-viewer/

## Feeds (RSS)
- Blog: https://mboxviewer.net/blog/rss.xml
- Guides: https://mboxviewer.net/guides/rss.xml
- Changelog: https://mboxviewer.net/changelog/rss.xml