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Open toolSQL Formatter
Format and beautify SQL online with the dialect and keyword case you choose. Review an indented query and copy the text; no SQL is executed.
Free to useNo sign-upRuns in your browser
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Enter the inputs, then select Format SQL.
Your result
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Result will appear here
How SQL Formatter works
The formatter parses SQL using the selected dialect and rewrites whitespace and keyword presentation with two-space indentation.
Literals and comments remain part of the formatted text. The tool does not connect to a database, run statements, or verify that a query returns the intended result.
The input is limited to 100000 characters and formatting runs in a bounded worker.
How to use SQL Formatter
Choose the SQL dialect and keyword case before formatting a statement or query.
Select the SQL dialect and case
Paste the SQL statement and choose its actual dialect. Set uppercase, lowercase, or preserved keyword case. Keep literals and comments in the source so they remain available for review.
SQL
Format the statement
Run the formatter and read the indented output. The result identifies the selected dialect and line count, helping you check that the statement was processed with the intended settings.
SQL formatted
Copy and inspect the query text
Copy the SQL and inspect literals, comments, and dialect-specific syntax before using it. The result note states that nothing was executed. Query behavior and performance still need database-side evaluation.
Output and export
When to use SQL Formatter
Use formatted SQL to make a review easier while keeping execution in the database workflow.
Beautify a long SQL query
Format a query with several clauses before discussing it with another developer. The line layout can help locate joins and conditions. Still read the conditions themselves, since visually tidy SQL can select the wrong rows or calculate the wrong expression.
Format SQL samples for documentation
Apply a consistent keyword case to a SQL excerpt used in documentation. Select the dialect shown by the sample and retain quoted identifiers and literal values. Keep any surrounding explanation accurate instead of treating the formatted appearance as validation.
Compare generated statements
Format comparable SQL statements from an application before inspecting their differences. Use a text comparison afterwards if needed. Formatting can reduce visual noise, but it cannot establish semantic equivalence or explain why an application generated a different condition.
Review formatted SQL without running a query
Review the reformatted statement as source text before taking it back to an editor or database workflow.
The result is SQL text with a new layout and keyword treatment. It is not a query plan, a schema check, an execution result, or a test of database performance.
Quoted content is handled as source content rather than executed. A parser error can indicate a dialect mismatch or unsupported syntax, so compare the source with its actual database dialect.
Check large or rejected statements
Match the dialect to the original statement and address parser errors before using the formatted text.
The input is limited to 100000 characters and formatting runs in a bounded worker. For a rejected statement, confirm the dialect and remove copied command prompts before changing the SQL itself.
Keep the original query when formatting a large generated statement. If work is stopped, format a smaller complete statement or relevant excerpt and review it with the same dialect selection.
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Open toolFormat and copy a SQL query
Choose the SQL dialect and keyword case before formatting a statement or query.
SQL Formatter: common questions
Answers about using SQL Formatter and understanding its results.
Does it connect to my database?
No. It formats pasted text only.
Does it preserve literals and comments?
The formatter preserves them, but review the output before using it.
Which dialects are available?
Standard SQL, PostgreSQL, MySQL, SQLite, SQL Server, and BigQuery are available in the form.
Will formatting improve query performance?
The tool changes presentation. It does not execute or optimize the query; inspect an execution plan in the database when performance is the question.