Supaguard screenshot

What is Supaguard?

Supaguard is an open-source security tool designed to scan and protect Supabase databases. It helps developers identify potential vulnerabilities, misconfigurations, and data exposure risks in their Supabase projects. The tool works by analysing your database structure, access controls, and security settings to detect common issues before they become problems. It's particularly useful for teams building applications on Supabase who want to maintain good security hygiene without relying on expensive third-party auditing services. Since it's open-source, you can inspect the code yourself and self-host it if needed.

Key Features

Database vulnerability scanning

identifies common security misconfigurations and weak points in your Supabase setup

Access control analysis

checks Row Level Security policies and authentication configurations

Data exposure detection

flags publicly accessible tables or sensitive data that may be improperly exposed

Configuration audits

reviews database settings for security best practices

Open-source codebase

available on GitHub for inspection, modification, and self-hosting

Pros & Cons

Advantages

  • Free and open-source, no licensing costs or vendor lock-in
  • Can be run locally or self-hosted for organisations with strict security requirements
  • Transparent code means you know exactly what the tool is doing with your database connection
  • Focused specifically on Supabase, so checks are relevant to that platform

Limitations

  • As an open-source project, community support may be limited compared to commercial alternatives
  • Requires some technical knowledge to set up and interpret results
  • May not offer the same breadth of checks as enterprise security platforms

Use Cases

Security audits before deploying a Supabase application to production

Regular scanning of existing applications to catch new vulnerabilities

Team onboarding to ensure new developers understand database security standards

Compliance preparation for organisations that need to document security practices

Development environments where teams want quick feedback on configuration issues