SQL Tools

SQL Validator

SQL Validator — validate SQL with local heuristic checks and clear warnings. It works entirely in your browser, with nothing uploaded to any server.

Client-sideRuns entirely in your browser — your data never leaves your device.

SQL Validator is a free SQL Tools utility that runs entirely in your browser — nothing you enter is uploaded.

SQL input
Check report



  
How to use SQL Validator

  
    
      
  1. Type or paste your SQL into SQL Validator's input area.
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  2. Tune the Dialect control before you validate.
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  3. Watch the output update instantly while you adjust the SQL.
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  4. Finish by choosing Copy to take the output with you.
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About this tool

  
There is no server behind SQL Validator. SQL Validator works on your query locally and returns a cleaner version instantly.

  
Your query is never uploaded. Nothing you enter is uploaded, and it keeps working offline once the page has loaded.

  
Frequently asked questions

  

      
How do I use SQL Validator?
SQL Validator runs entirely on your device: add your input using the Dialect control, and it validates it locally in real time.

      
Do I need an account for SQL Validator?
No — SQL Validator needs no account, sign-up or installation.

      
Does SQL Validator upload my data?
No — SQL Validator processes everything locally in your browser, so nothing you enter is uploaded or stored.

      
Which SQL dialects does SQL Validator understand?
SQL Validator formats the common dialects in your browser and never sends your queries to a server.

      
Does SQL Validator work on mobile?
Yes — SQL Validator is just a web page and runs on any modern browser, including phones and tablets.

  

  
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