MySQL Visual Explain
Transform MySQL EXPLAIN output to easy-to-understand visualizations.
About MySQL Visual Explain
MySQL Visual Explain is a web-based tool that converts MySQL's EXPLAIN command output into a visual representation of a query's execution plan. Users submit a SQL query and receive a visualization intended to make it easier to identify performance issues than reading EXPLAIN's raw tabular output. The site provides several built-in examples, including joins, subqueries, and complex query plans, and mentions the availability of a private self-hosted version.
The tool is aimed at software developers working with MySQL who need to diagnose slow queries, such as identifying causes of full scans, filesort operations, or temporary table usage, or understanding why an index is not being used. It targets users who find MySQL's native EXPLAIN output difficult to interpret, regardless of their prior experience level.
The site also references a companion book by the tool's creator that covers indexing and query tuning concepts through illustrated explanations, along with an API, a guide, and standard policy pages (privacy policy, terms and conditions, imprint/contact).
Key features
- Visualizes MySQL EXPLAIN output as an interactive diagram
- Accepts a SQL query and generates the execution plan visualization
- Includes built-in examples for joins, subqueries, and complex plans
- Offers a private self-hosted version
- Provides an API for programmatic access to explain visualizations
Frequently asked questions
What does this tool do?
It turns MySQL's cryptic EXPLAIN output into a visual diagram to help developers diagnose slow queries.
Is a self-hosted version available?
Yes, a private self-hosted version is offered.
Does it provide an API?
Yes, an API is available alongside the explain guide.
Who is this tool for?
It is for software developers trying to understand and fix slow MySQL queries and indexes.
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