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SQL EXPLAIN Plan Visualizer

Parse and visualize SQL EXPLAIN / EXPLAIN ANALYZE output (PostgreSQL text + JSON, MySQL JSON, SQL Server XML) as an interactive tree. Per-node scan type, cost, rows (estimate vs actual), timing, loops, buffers. Detects bottlenecks and row-misestimates with plain-English advice. 100% client-side; plans never leave the browser.

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Parse and visualize SQL EXPLAIN / EXPLAIN ANALYZE output (PostgreSQL text + JSON, MySQL JSON, SQL Server XML) as an interactive tree. Per-node scan type, cost, rows (estimate vs actual), timing, loops, buffers. Detects bottlenecks and row-misestimates with plain-English advice. 100% client-side; plans never leave the browser. Everything runs locally in your browser — your data never leaves your device.

How to use

  1. Enter your input in the tool above.
  2. Adjust any options to your preference.
  3. Use the Copy or Download buttons to save the result.
  4. Everything happens locally — your data never leaves your browser.
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