MySQL Visual Explain

What it does

Every software developer is struggling to fix slow MySQL queries. You are not alone in this. But you can just visually see what a MySQL query is doing instead of trying to learn the incomprehensible EXPLAIN output.

• IM
  I made a tool to visualize MySQL EXPLAIN query plans2024 · mysqlexplain.com · ▲19

  I was always confused when trying to optimize a slow MySQL query as the output of the EXPLAIN command is so cryptic and totally useless. And there wasn't any tool that could help visualize what a query does - compared to PostgreSQL which has multiple... So, I started developing such a tool for MySQL. But boy, I didn't expect how complicated this is in reality. There were so many things hiding in tiny information pieces that I had to understand. But it also confirmed me in that a tool should try to understand the EXPLAIN output and not a human as it is too easy to oversee something. After…

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  Visualize SQL Queries2022 · animatesql.com · ▲259

  My co-worker and I were debugging a SQL issue; having not seen SQL in two years, I embarrassed myself by confusing union vs. join. After this episode, I tried refreshing my SQL memory, but there are few websites that animate SQL for you. Most of them just have a series of images to help you visualize. There are a few tools that are quite good and robust (especially for large/complex use cases) but require installation and are too complex for my simple purpose. So, just created a small tool to help visualise SQL. Most of the animations are just my understanding of how SQL works. Would…

• VS
  Visual SQL2020 · chartio.com · ▲512
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  Explain.datadoghq.com – a free explain plan visualizerJan 2026 · explain.datadoghq.com · ▲15

  Visualize and analyze database query execution plans for PostgreSQL, MySQL, SQL Server, and MongoDB to optimize performance, brought to you by Datadog.

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  MySQL for Developers2023 · ▲152

  Learn MySQL with 64 videos for application developers

• PQ
  Postgres query lock explainer2023 · github.com · ▲143

  This is like 4 years old, but I’m braver now and ready to share stuff with this community. I’ve been a lurker for a while. I made this tool - it’s kind of like “explain” but it tells you about what locks would be required by the query. I was making it as part of a larger tool that would try to prevent deadlocks during migrations at my last company, I never finished it.

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