SQL Formatter

Beautify SQL in your browser with the sql-formatter library: choose a dialect (PostgreSQL, MySQL, SQLite, BigQuery, and more), keyword case (upper, lower, preserve), and indentation (2 spaces, 4 spaces, or tab). Format, copy, or download query.sql. Identifiers and function names stay as typed unless you change keyword casing.

sqldatabaseformatter

Category: Code & Developer Tools

Runs entirely in your browser. Pick a dialect that matches your engine for best results. Identifiers and function names stay as typed unless you change keyword casing.

Paste SQL and choose options, then click Format.
Formatted SQL appears here…

What does an SQL formatter do?

An SQL formatter (or beautifier) rewrites queries with consistent indentation, line breaks, and often standardized keyword capitalization so SELECT, FROM, and JOIN blocks are easy to scan. It does not change query meaning for well-formed input; it is primarily a readability and code-review aid for analysts, backend engineers, and DBAs pasting snippets from logs, ORMs, or one-off scripts.

How this SQL Formatter works

Dynamic Duniya’s SQL Formatter uses the open-source sql-formatter package directly in your tab. Paste messy or minified SQL, select the dialect that matches your database engine (the dropdown lists every dialect the library supports), choose whether SQL keywords appear in UPPER, lower, or preserved case, and pick indentation with 2 spaces, 4 spaces, or tabs. Click Format to generate pretty-printed SQL in the output panel. Identifiers, function names, and data types are left as in your source unless you change keyword casing — the tool preserves them by design.

Why dialect matters

Different engines accept slightly different syntax — string quotes, dollar-quoting, backticks, JSON operators, and procedural blocks. Choosing the closest dialect helps the parser produce sensible layout and fewer parse errors. If you are unsure, try generic “sql” or switch dialects until formatting succeeds.

Privacy

Formatting runs entirely client-side. Your queries are not uploaded to Dynamic Duniya for processing. Avoid pasting production secrets on shared computers; use Clear when finished.

Frequently Asked Questions

Why do I see a formatting error?

The formatter must parse your input as SQL for the selected dialect. Extremely incomplete fragments, embedded non-SQL text, or dialect mismatches can trigger an error message instead of output. Fix syntax, try another dialect, or paste a smaller isolated statement.

Does this validate or execute my SQL?

No. It only reformats text. It does not connect to a database, run EXPLAIN, or guarantee the query is semantically valid for your server.

Can I download the formatted query?

Yes. After a successful format, use Download .sql to save the result as query.sql locally, or Copy to put it on the clipboard.

What is the difference between keyword case and preserve?

Keyword case controls reserved words like SELECT and WHERE. Preserve leaves keywords as you typed. Upper and lower normalize those tokens. Table and column names (identifiers) stay as typed in this tool’s configuration.

Is the SQL Formatter free?

Yes. No signup is required.

Tips

Quick guidance for using our tools safely and effectively.

Privacy

Files are processed on the server for conversion only and are not used for training or shared with third parties.

Best results

Use the formats suggested in each tool. Large media files may take longer — keep the tab open until processing finishes.

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