Schema Diff API Playground

Test the free SchemaLens diff API right in your browser. No signup, no API key. Paste two schemas, pick a dialect, and get migration SQL, rollback, and a risk score.


    

    
    
    
    
      
    
        
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    JavaScript (fetch)
    
        
    
      
    
      
    
        
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    🔑 No API Key
    
      
    /api/free-diff requires no authentication. Start prototyping in seconds.
    
    
    
    
    
      
    ⚡ 5 Dialects
    
      
    PostgreSQL, MySQL, SQLite, SQL Server, and Oracle migration scripts.
    
    
    
    
    
      
    🛡️ Breaking Detection
    
      
    Structured breakingChanges array with severity and explanation.
    
    
    
    
    
      
    📝 Markdown Reports
    
      
    Switch to Markdown format for PR comments, Slack, or documentation.
    
    
    
  
    

  
    
    
    
      
    🚀 Add to Your CI/CD Pipeline
    
      
    Turn this API call into a GitHub Action, GitLab CI, or Jenkins job in 60 seconds.
    
      Generate CI/CD Config
    
    
    
    
      
    ⚡ Unlock Power Features
    
      
    Lifetime Pro adds exports, shareable links, history, and 80+ micro-tools for $39.
    
      Get Lifetime Pro — $39
    
    
    
    
      
    👥 Team Drift Alerts
    
      
    Monitor production schemas, get Slack/Teams alerts, and share a team dashboard.
    
      Explore Team Plan