Open source SQL optimization with built-in verification
OptimizeQL analyzes your real execution plan and suggests specific fixes: indexes, rewrites, config changes. Simulate the impact before you deploy.
Browser-based · Privacy-first · No setup required
Runs in-browser via PGlite — your data never leaves your machine.
How it works
Drop in your CREATE TABLE statements and the SQL query you want to optimize.
We spin up a real PostgreSQL engine in your browser, generate data, and run EXPLAIN ANALYZE.
AI reads the execution plan and returns indexes, rewrites, and config changes ranked by impact.
Simulate indexes, compare rewritten queries, and validate results — all in the browser.
Core features
Full PostgreSQL runs in your browser via PGlite. No server, no credentials, no risk.
Verify that rewritten queries return identical results before deploying to production.
Test index impact on query cost without creating them on your production database.
Suggestions grounded in real execution plans, not just syntax pattern matching.
Use cases
Find bottlenecks in complex reporting queries with multi-table joins and aggregations.
Verify that optimized query rewrites return the same results as the original.
Simulate index impact on query performance before committing to production changes.
Share analysis results with your team via shareable links for review and discussion.
No sign-up required. Paste your schema, write a query, and get optimization suggestions backed by real execution plans.