SubDomainizer

The premium Open Source alternative to Spyse

🎯 Best for:Reconnaissance and identifying hidden cloud assets in web applications.

What is SubDomainizer?

Automates the discovery of subdomains and sensitive endpoints by parsing external JavaScript files and cloud storage links. Extracts hidden API keys and cloud metadata from client-side assets to identify potential attack surfaces.

Tech Stack
PythonTesting & QA

Why SubDomainizer?

  • Finds hidden JS endpoints
  • Cloud bucket discovery
  • Lightweight Python tool

Limitations

  • High false positives
  • No database persistence
  • Requires manual verification
3/5/2026
Last Update
236
Forks
3
Issues
MIT
License
Financial Leak Detected

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Competitor Cost
-$1,440
/ year (est. based on Spyse)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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