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GainTools OST to VCF Converter vs File Compressor Online

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

GainTools OST to VCF Converter compared with File Compressor Online
DetailGainTools OST to VCF Converter logo GainTools OST to VCF Converter File Compressor Online
What it doesExport OST contacts to VCF to access on various email applications and mobile devices Free online image and file compressor with exact target KB size and 100% in-browser privacy
StageNot given Not given
FoundedNot given Not given
Based inIN Not given
Pricing modelFreemium Free
PricingFree trial available; full license $39 USD with 30-day money back guarantee Not given
Key features
  • Reads any OST file for contact extraction
  • Saves entire contact details to VCF format
  • Filters and selects specific OST files for data extraction
  • Supports MS Outlook versions 2003 to 2016
  • Easy sharing of Outlook contacts to multiple devices
  • Exports all contact properties including names, addresses and phone numbers
  • User-defined output location for VCF files
  • Handles corrupted OST files
  • Exact target KB size selection without guessing
  • 100% original resolution preservation without downscaling
  • Support for JPG, PNG, WebP, and GIF formats
  • Live side-by-side comparison slider before saving
  • No subscriptions, watermarks, or daily file limits
  • Metadata and GPS tag removal
  • Works on desktop, tablet, and mobile devices
What makes it different
  • Seamless migration of all contact properties without modification or damage
  • Compatible with any MS Outlook version and corrupted files
  • Free demo version available for lifetime
  • 24/7 technical support included
  • Simple 3-4 step conversion process for non-technical users
  • Guaranteed privacy through 100% in-browser architecture with zero file uploads to servers
  • Exact target KB fitting without resolution loss or pixel breaking
  • Designed specifically for government visa, passport, and job portal upload requirements
  • Completely free with no registration, subscriptions, or hidden fees
Community votes00
DR (Domain Rating by Ahrefs)27 −1 (down) since last check5 no change since last check
Trust Flow (Majestic)243
Citation Flow (Majestic)2313
Referring domains (Majestic)6078

4 details filled in for both companies.

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