SQL Query Analyzer
PostgreSQLHow QuerySense Works
QuerySense combines deterministic rule-based analysis with AI-powered semantic reasoning to give you fast, accurate, and explainable SQL optimization.
Analysis Pipeline
1
Parse
Normalize & tokenize SQL
2
Rules
10 deterministic checks
3
AI
GPT-4o-mini reasoning
4
Score
Merge & rank results
Detection Categories
SELECT *warning
Missing WHEREcritical
Full Table Scanwarning
Bad JOINscritical
N+1 Patternscritical
Missing LIMITinfo
Nested Subquerieswarning
Expensive Aggregationwarning
Redundant ORDER BYinfo
Query Complexityinfo
Built With
Next.js 15TypeScriptTailwind CSS v4Framer MotionPrismaPostgreSQLOpenAI GPT-4o-miniMonaco EditorVercel