# MBOX Viewer

Free online MBOX viewer. Open and preview mailbox files (.mbox) directly in your browser — no upload, no software.

> Page canonique: https://elysiatools.com/fr/viewers/mbox

- **Catégorie:** Diagrammes

- **Formats pris en charge:** .mbox

## Présentation

This MBOX viewer parses and renders mailbox files directly in your browser. MBOX (.mbox) is the standard format for storing multiple email messages in a single file, used by Thunderbird, Apple Mail, Google Takeout and many Unix mail systems. Pick a sample mailbox or choose your own .mbox file to preview it instantly, with no upload.

## Quand l'utiliser

- You exported a mailbox from Thunderbird or Google Takeout and want to read it.
- You need a quick, private preview of multiple emails.
- You want to inspect an mbox archive without importing it.

## Fonctionnement

- Select a built-in sample mailbox or choose your own .mbox file.
- The viewer parses the mbox format and lists all messages in your browser — nothing is uploaded.
- Click messages to inspect headers and body content.

## Cas d'usage

- Reading email archives from Google Takeout.
- Inspecting Thunderbird and Apple Mail exports.
- Searching through old mailbox exports.

## Exemples

- **Boîte aux lettres MBOX d'exemple**: A MBOX sample for in-browser preview

## Questions fréquentes

### What is an MBOX file?

MBOX (.mbox) is a plain-text format for storing multiple email messages in a single file. Each message starts with a 'From ' line followed by the full email (headers and body). MBOX is used by Thunderbird, Apple Mail, Google Takeout, POSIX mail and many email archiving tools.

### Are my MBOX files uploaded?

No. Mailboxes you open from your device stay on your device and are parsed locally. Only the public sample mailbox is requested from the server.

### How many emails can an MBOX file contain?

There is no hard limit — MBOX files can contain thousands or millions of messages. The viewer lists all messages found in the file, though very large files may take time to parse.

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