SQL Query Analyzer

Runs in your browser — nothing is uploaded

About this tool

Pattern-based lint checks on the query text — it has no connection to your actual database, table sizes, or existing indexes, so it can't tell you what will really be slow. Treat findings as "worth a second look," not a verdict. For a real cost estimate, run EXPLAIN against your actual database (see the PostgreSQL Explain Visualizer for reading the output).

Frequently asked questions

What is SQL Query Analyzer?

Analyze a query for potential performance issues. It is one of the Database Tools tools on MyCodeTips.

How do I use SQL Query Analyzer?

Open the tool, enter or paste your input, and the result appears right away. Use the Copy button to copy it.

Is SQL Query Analyzer free to use?

Yes. It is free to use and does not need an account.

Is my data safe with SQL Query Analyzer?

Yes. It runs entirely in your browser, so what you enter is never uploaded to our servers.

Can I share my result?

Yes. Use the share buttons below the tool to post a link or copy a link to the tool page.