SQL Query Analyzer

PostgreSQL

GPT-4o-mini

Zero-Config Optimizer

Paste your SQL. Get instant intelligence.

Paste your raw SQL query to instantly run a hybrid rule-based and AI-powered scalability review. No database connections needed.

Interactive onboarding

Paste SQL → Optimize → Compare → Present

query.sql

• Postgres

Initializing Monaco SQL Engine...

0 characters • 1 lines

Execution TimelineIdle

Analyze

Detect

Optimize

Score

Complete

Load Demo Sample SQL

The Kitchen Sink

critical

Implicit Cartesian joins, SELECT *, missing indexes, and unbounded result sets.

N+1 Time Bomb

critical

Correlated subqueries in SELECT projection forcing row-by-row nested loop execution.

Aggregation Monster

warning

Correlated subqueries with redundant DISTINCT, causing intensive sorting operations.

Ready to Analyze Query Performance

Paste your SQL statement into the editor above or select a pre-loaded query from our sample library.

Offline

Scan Analysis

Ready

AI Scorer

Active

Index Engine

WHY QUERYSENSE?

Visual SQL Intelligence for Modern Development Workflows

Performance Risks Hide in Plain Sight

SQL queries often perform well during development but become expensive as data grows. QuerySense identifies structural performance risks before deployment.

QueryVision™

QueryVision transforms SQL analysis into visual insights, helping developers understand bottlenecks, scaling behavior, and optimization opportunities.

Rules + AI

Deterministic SQL rules provide reliability while AI-assisted reasoning adds context and optimization suggestions.

Built for Trust

Every recommendation includes confidence, reasoning source, and supporting analysis.

Shift Optimization Left

Catch query issues during development instead of after deployment. No production database required.

Future Improvements

Multi-dialect SQL support, team workspaces, persistent cloud history, and query benchmarking.