Local-first Email Forensics

Explore your email archives.
Investigate what matters.

Open massive MBOX archives directly in your browser. Search conversations, inspect headers, reconstruct timelines, and investigate evidence without uploading your mailbox.

Open MBOX File Explore Features
Local processing No mailbox upload Privacy-first
local-session • MBOX Viewer
⌘ K
Inbox
Tagged Evidence
Attachments
Investigate
Timeline
Analytics
Forensics
Integrity
Findings
Search emails...
Project Update
Alice Johnson
Security Alert
GitHub
Invoice #8291
Finance
Project Update
From: alice@example.com
Authentication Analysis
SPF PASS
DKIM PASS
DMARC PASS
Attachments
project-brief.pdf

Your mailbox. Your device.

Your mailbox is processed locally in your browser and is never uploaded.

Drop your MBOX here

or click to choose an archive

.mbox•Gmail Takeout•Thunderbird

Built for More Than Reading.

A digital forensics workstation that runs natively in your browser.

Explore

Navigate massive archives effortlessly.

  • • Fast email browsing
  • • Powerful query search
  • • Advanced filters (has:attachment)
  • • Contact extraction

Analyze

Turn an archive into intelligence.

  • • Communication patterns
  • • Timeline analysis
  • • Top sender statistics
  • • Domain analytics

Investigate

Inspect the evidence behind every message.

  • • Header & Routing analysis
  • • SPF/DKIM/DMARC results
  • • SHA-256 file integrity
  • • Investigation findings log

Your emails don't need to leave your computer.

The application runs entirely in your browser. All parsing, indexing, and analysis happens locally using Web Workers and IndexedDB.

✕
No mailbox upload to servers
✕
No cloud email API access required
✕
No remote storage or tracking
Your Device
MBOX Viewer Architecture
Web Worker Streaming Parser
↓
IndexedDB Local Storage
↓
Search & Analytics UI
.MBOX FILE

How It Works

01

Open

Choose or drop your .mbox archive. Supports Google Takeout, Thunderbird, and standard MBOX exports.

02

Process

Web Workers stream and parse the massive archive locally into your browser's IndexedDB without crashing the UI.

03

Investigate

Search instantly, analyze chronologically, inspect technical headers, and export a cryptographic evidence manifest.

Your archive has more to tell you.

Open an MBOX archive and start exploring your email data directly in your browser.

Open MBOX File
No Account • No Upload • Local Only