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WhatIsMyTools vs List Matcher

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

WhatIsMyTools compared with List Matcher
DetailWhatIsMyTools logo WhatIsMyToolsList Matcher logo List Matcher
What it doesFree browser diagnostic tools revealing IP, browser, timezone, speed, and more with no signup required Compare two lists to find differences, matches, and near-duplicates
StageNot given Not given
FoundedNot given Not given
Based inPK Not given
Pricing modelFree Free
PricingNot given Not given
Key features
  • IP address detection with ISP and location details
  • Internet speed test for download and upload speeds
  • Browser and OS identification
  • Timezone and UTC offset detection
  • VPN and IP leak detection
  • DNS lookup with public A and AAAA records
  • Password breach check with in-browser hashing
  • Email header analysis and SPF/DKIM/DMARC verification
  • ISP throttling detection for video streams
  • GPU and WebGL capability detection
  • Support for multiple file formats: XLSX, XLS, ODS, CSV, TXT, and spreadsheet pastes
  • Multiple output formats: side-by-side, combined, items only, or whole rows
  • Copy or download results as TXT or CSV
  • Save workflow settings on device for repeated comparisons
  • View match details to inspect source rows and matching rules applied
  • Processes lists in browser without uploading data
  • Handle large datasets: test with 100,000 or 1,000,000 lines
What makes it different
  • No signup, cookies, or data storage required
  • Results appear instantly, powered by browser itself
  • Privacy-first design without dark patterns
  • Fully responsive across mobile, tablet and desktop
  • Honest explanations of tool methodology and limits
  • All processing happens in your browser, so your lists never leave your device
  • Free to use with no sign-up required
  • Flexible matching rules that adapt to your data: case sensitivity, spaces, hidden characters, and leading zeros
  • Works with data from Excel, Google Sheets, and plain text without any conversion needed
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)4 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)180
Referring domains (Majestic)60

4 details filled in for both companies.

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