---
title: "Free Online MBOX Viewer — open MBOX files in your browser"
description: "Open and read MBOX files online, free and private. Everything runs in your browser — nothing is uploaded. For larger files, download Mbox Viewer for Mac."
url: https://mboxviewerpro.com/online-viewer/
language: en
source: Mbox Viewer
---

# Free online MBOX viewer

Open and read MBOX email archives right in your browser. Nothing is uploaded — your file never leaves your device.

100% private — runs entirely in your browser, nothing is uploaded.

[Open the online viewer](https://onlinemboxviewer.com/)

Free · no signup · opens in a new tab

## Bigger files or more features?

The online viewer is for a quick look at small archives. For files of any size, search, labels and EML support, get the native macOS app.

[Get it on the Mac App Store](https://apps.apple.com/app/mbox-viewer-pro/id6759237715) [Microsoft Store](https://apps.microsoft.com/store/detail/9NW3GVFG7DDB)