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Mail File Viewer vs Tools That Don't Upload

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Mail File Viewer compared with Tools That Don't Upload
DetailMail File Viewer logo Mail File ViewerTools That Don't Upload logo Tools That Don't Upload
What it doesRead email files privately in your browser with no upload Browser tools that process files on your device without uploading them, plus REST API and MCP server
StageNot given Not given
FoundedNot given Not given
Based inNot given KR
Pricing modelFree Freemium
PricingNot given Browser tools: free, no signup, no limits. API and MCP server: Free key with 1,000 credits/month; Dev plan $9/month with 100,000 credits/month; Business plan $49/month with 500,000 credits/month. Credit packs: Starter $5 (50,000 credits), Standard $10 (100,000 credits), Pro Pack $25 (300,000 credits
Key features
  • Read winmail.dat and EML files in browser
  • View embedded images safely
  • Preview PDF attachments
  • Download attachments individually or as ZIP
  • No file uploads to server
  • Display sender, date and message content
  • QR code generation from text or URL
  • REST API for file processing, text extraction and AI tools
  • MCP server integration for Claude and code editors
  • Workflow automation for business tasks
  • Network tools: DNS lookup, WHOIS and SSL check
What makes it different
  • All processing happens in your browser with no uploads
  • Private handling of email attachments Outlook hides
  • Safe display of external images with user permission
  • All files stay on your device—nothing is uploaded, no data stored
  • 98 free browser tools with no signup required and no daily limits
  • Developer API and MCP server for integrating tools into code and AI assistants
  • Privacy by design with Cloudflare Workers processing in memory without storage
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last check7 no change since last check
Trust Flow (Majestic)20
Citation Flow (Majestic)1928
Referring domains (Majestic)618

4 details filled in for both companies.

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