The Modern Mail File Viewer

The modern replacement for legacy desktop mail viewers. Open .EML, .MSG, and .MBOX in your browser, inspect headers and attachments, then search and export with no email client, plugins, or setup overhead.

EML 2.4 MB

Mailbox: acquisitions@northstar.com

From: elena.ross@northstar.com

Subject: Vendor pricing update - Q2

Integrity: SHA-256 verified

Attachments (3)

NDA.pdf Quote.xlsx Specs.docx
MSG 1.8 MB

Owner: M. Chen

Thread: Vendor payment exception

MBOX 847 MB

Archive: 12,847 messages

Range: Jan 2022 - Dec 2024

50M+

Emails Processed

99.9%

Parse Reliability

SOC 2

Security Controls

24/7

Viewer Access

Built to Replace Legacy Viewers

All the Core Features, Without the Old Workflow

01

Header + MIME Views

Review raw headers, MIME structure, routing hops, and normalized timestamps in one browser interface.

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02

Attachment Preview

Open and export attachments with metadata intact, including filename, MIME type, size, and hash checks.

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03

Message + Thread Context

Switch from single-message reading to thread context quickly, with sender and recipient metadata preserved.

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04

Advanced Search

Search by subject, sender, recipient, date, and full-text content to isolate relevant emails fast.

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05

Bulk File Handling

Load large .MBOX archives and bulk email sets without size-based friction or client app dependencies.

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06

Export and Reporting

Export selected messages and metadata in practical formats for sharing, audits, and downstream workflows.

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Supports the Formats Legacy Tools Rely On

Native Format Coverage

.EML

Internet Message Format

.MSG

Microsoft Outlook Object

.MBOX

Mailbox Archive Container

Ops and Compliance Teams
Support and IT Workflows
Recruiting Assessments
Security and Audit Review

Simple, Predictable Pricing

Pick Your Viewer Tier

Inspired by common free/pro/pro+ models across legacy email tools, but modernized for browser-first teams. No hidden conversion upsells. No per-format lock-ins.

Starter

Free

Best for quick checks and occasional file review.

  • Open .EML, .MSG, and .MBOX
  • Header + MIME + message views
  • Attachment preview
  • Basic search
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Most Popular

Professional

$39/month

For daily review, investigations, and collaboration.

  • Everything in Starter
  • Advanced search + field filters
  • Bulk mailbox handling
  • Export to PDF, HTML, and structured data
  • Priority support
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Business

$129/month

For teams with higher volume and governance needs.

  • Everything in Professional
  • Team seats and role controls
  • Audit-ready activity logs
  • Dedicated onboarding
  • SLA-backed support
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Import your files in seconds

Drop in .EML, .MSG, or .MBOX files and review everything directly in your browser.

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