SQL Formatter
Runs locally in your browser. Nothing leaves your device.Format and beautify SQL scripts locally in the browser.
Formatter settings
Input
Successful formatting does not mean the SQL is syntactically correct, semantically valid, or executable.
Output
Formatted SQL appears here.
Formatted SQL appears here.
How it works
- 1
Paste SQL or load a file
Paste SQL or load a .sql, .ddl, .dml, or .txt file.
- 2
Choose the dialect and preset
Choose the specific SQL dialect and a formatting preset, or adjust individual options.
- 3
Copy or download the formatted SQL
Copy the formatted SQL or download it as a file.
Good to know
The SQL formatter formats SQL queries directly in your browser according to a chosen dialect — Standard SQL is only a common compatibility profile, not a real dialect. A formatting preset bundles settings such as keyword, function, and data-type case, indentation, and AND/OR wrapping, but automatically switches to “Custom” the moment a single option is changed manually.
Granular options control expression width, operator spacing, blank lines, and semicolon behavior individually. Important: successful formatting does not mean the SQL is syntactically correct, semantically valid, or executable — there is no database connection and no execution, and formatting only improves readability, not query performance.
Typical use cases
Make an unwieldy legacy query readable
Paste a single-line or inconsistently indented SQL query to make it readable with clear indentation and consistent keyword case.
Prepare a SQL file with dialect-specific formatting
Upload a .sql file and choose the specific target dialect such as PostgreSQL or MySQL for correctly formatted output.
Tips for better results
Choose a specific dialect instead of Standard SQL
Choose the specific target dialect like PostgreSQL or MySQL, since Standard SQL is only a common compatibility profile and doesn't format dialect-specific syntax optimally.
Don't mistake formatting for validation
A successfully formatted query can still be syntactically wrong or semantically invalid — also test it against the real database.
Features
Granular formatting options
Control keyword, function, and data-type case, indentation, and AND/OR wrapping individually.
Dialect-specific presets
Choose a preset matching the target dialect, which automatically becomes Custom on manual change.
No execution, no connection
The SQL is only formatted; there is no database connection and no execution.
Frequently asked questions
Does formatting check whether my SQL is correct?
No. Successful formatting does not mean the SQL is syntactically correct, semantically valid, or executable.
Is a connection to a database established?
No. There is no database connection; the SQL is only formatted locally, not executed.
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