Tools
Stable signalNo paid features detectedLow-risk permissions
Mbox Viewer by Cloud Captains icon

Mbox Viewer by Cloud Captains

Mbox Viewer: free, secure, private, offline Mbox/EML/EMLX/PST viewer. Forensic analysis, search, bulk export. 100% local.

Users1KCurrent public install base
Rating4.0Store average score
Reviews8Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview

Mbox Viewer by Cloud Captains Media preview

6 assets
Trend

User growth trend

Review user movement across collected snapshots.

User Growth Over Time

1K1K1K1K1K2026年7月18日2026年7月19日2026年7月20日Latest: 1K
Rating trend

7-day rating trend

View collected rating snapshots from the latest 7-day window to assess rating stability.

7-day rating change

Start
4.00
Latest
4.00
7-day rating change
0.00
3.903.954.004.054.102026年7月18日2026年7月19日2026年7月20日Latest: 4.00
2026年7月18日2026年7月20日
Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthNo data
----
7-day growthFlat
00%
30-day growthNo data
----
Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version1.5.4
ManifestV3
Size3.08MiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

Review the store description, core capabilities, and common use cases.

Mbox Viewer by Cloud Captains is the simple, secure, and completely private solution you've been looking for. It works 100% offline, right in your browser, ensuring your data never leaves your computer.

This tool was built out of a simple need for a fast, reliable way to view Mbox archives without compromising on privacy. Whether you're opening a Google Takeout export or accessing old email backups, our viewer gives you instant access without any fuss.

All features are available for free, with no ads or hidden costs. This is a tool built for the community.

Why Mbox Viewer?

‣ Truly private and secure: Your files are processed locally on your machine. We never see, store, or transmit your data. What's yours stays yours.

‣ Works completely offline: After the initial page load, the viewer functions perfectly without an internet connection, making it reliable and secure wherever you are.

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

Store average score4.0Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.0Average computed only from synced review bodies below
Reviews with text4Synced review bodies
Total ratings / reviews8Chrome Web Store public rating/review count

Store average score: 4.0. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★
2
4★
0
3★
0
2★
0
1★
2
Alexander Ditzel2026年4月27日
1

Bricht ständig ab und zeigt Fehlermeldungen. Auch nach Neuinstallation nicht zu gebrauchen. - Gerät: MacBook Pro - genug Arbeitsspeicher! Chrome Browser. - Datei: Google Takeout .mbox - Chrome zeigt an "Oh nein! Fehler beim Anzeigen dieser Website. Fehlercode: 5"

Version 1.6.3Language de
0 helpful · 1 not helpful
Austin Chase2026年1月24日
5

Works very quickly and accurately for my exported Gmail storage. It uses your local machine to view them so it's private. I had to go through three other .mbox extensions/programs until I found this working one.

Version 1.5.4Language en
1 helpful · 0 not helpful
Guil Brynski (CNW)2025年11月30日
5

Very nice and slick interface, code seems pure and uncluttered. Nice work fellows! Love it.

Version 1.5.4Language en
2 helpful · 0 not helpful
Walter Peterson2025年10月19日
1

It didn't open my file. :(

Version 1.2.1Language en
1 helpful · 5 not helpful
Related products

Similar and related extensions

Review related products from the Chrome Web Store detail page.