QueryTuner

The product is a SQL query analyzer that diagnoses pasted SQL queries and returns severity-ranked findings, index recommendations, and rewritten queries without requiring a database connection. It is for software developers and data professionals in businesses who need to troubleshoot and optimize SQL performance. It is delivered as a SaaS tool with a free tier that uses a heuristic engine plus LLM rewriting and supports PostgreSQL, MySQL, Oracle, SQL Server, and SQLite via a web interface and API.

Key features

• Severity-ranked findings
• Index recommendations
• Rewritten SQL queries
• Heuristic engine analysis
• LLM-powered query rewrite
• Multi-database support PostgreSQL MySQL Oracle SQL Server SQLite
• Security risk report
• Prioritised fix list
• Permanent shareable URL
• /analyze API endpoint
• EXPLAIN plan analysis
• Schema DDL verification