App contender

MBOX Viewer — Open and Read MBOX Files Online

Open and Read MBOX Files Online

mbox.onescales.com Productivity & Personal Tools Listed Aug 21, 2026

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Global rank#275

Category rank#15

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The short version

What is MBOX Viewer — Open and Read MBOX Files Online?

A browser-based tool for viewing, searching, and exporting MBOX files locally without uploading data to a server.

What makes it different

Processes MBOX files entirely within the user's browser on their local machine, ensuring no data is transmitted or stored on external servers.

Product capabilities

Key features

Browser-based MBOX file viewing
Search by sender, subject, or date
Filter messages
Export to CSV, PDF, EML, MBOX, and ZIP
Attachment extraction
Two-pane layout

Ways to use it

Use cases

Reading MBOX files
Converting MBOX to CSV, PDF, or EML
Extracting attachments from MBOX files
Splitting large MBOX files

Who it is built for

Best for

Users with MBOX files from Google Takeout, Thunderbird, or Apple Mail

At a glance

Strengths & considerations

Strengths

No software installation required
Privacy-focused (no file uploads)
Handles large files (10GB, 50GB+)
No subscription fees

Things to consider

Desktop browser required (Chrome or Edge recommended)
Not compatible with mobile browsers
Full functionality requires a one-time payment

Plan information

Pricing

Modelfreemium

Starting price$29 USD

Reading and single-message export are free. A one-time payment of $29 unlocks unlimited file size, bulk exports, and attachment extraction.

Free access

Allows reading the mailbox and exporting a single message.

Prices and plans can change. Confirm current terms on the official pricing page before purchasing.

Compatibility & availability

Technical details

Platforms & channels

Desktop browsers (Chrome, Edge)

Languages

English

Official destinations

Links

Website

Quick answers