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SQL

Free SQL Formatter & Beautifier Online

Beautify and minify SQL instantly, then explain it with AI. Performance notes and improvement suggestions for MySQL, PostgreSQL, T-SQL, Spark SQL, and more.

SQL Formatter & Beautifier
Format or minify SQL instantly. Runs 100% in your browser — nothing is sent to a server.
How it works

Format — beautifies SQL with proper indentation, line breaks, and uppercase keywords.

Minify — compresses SQL into a single line for storage or transmission.

Format runs locally in your browser. AI Explain sends your query to our AI for analysis (optional).

AI SQL Explain
Get a plain-English explanation, performance notes, and improvement suggestions. Powered by AI. Free tier: ~15 requests/min — wait a few seconds between clicks.

Supported SQL Dialects

Select your dialect from the dropdown above for best results.

PostgreSQL SQL Formatter

Format PostgreSQL queries with proper indentation for SELECT, JOIN, CTEs, and window functions.

MySQL SQL Formatter

Beautify MySQL and MariaDB syntax including stored procedures, backtick identifiers, and LIMIT clauses.

SQL Server (T-SQL) SQL Formatter

Prettify T-SQL with support for DECLARE, BEGIN/END blocks, and SQL Server-specific keywords.

Spark SQL SQL Formatter

Format Spark SQL and Hive queries for data engineering and big data pipelines.

Redshift & BigQuery SQL Formatter

Clean up warehouse SQL for Amazon Redshift and Google BigQuery analytics workloads.

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Frequently Asked Questions

What is a SQL formatter?
A SQL formatter (also called a SQL beautifier or prettifier) takes unreadable, minified SQL and reformats it with proper indentation, line breaks, and keyword casing so it's easier to read and debug.
What SQL dialects are supported?
MySQL, PostgreSQL, MariaDB, SQL Server (T-SQL), Spark SQL, Redshift, BigQuery, SQLite, PL/SQL, and standard SQL.
Is this SQL formatter free?
Yes. VyomaStack SQL Formatter is completely free with no signup, no limits, and no watermarks.
Is my SQL sent to a server?
No. All formatting runs entirely in your browser. Your queries never leave your device — ideal for sensitive production SQL.
Can I minify SQL as well as format it?
Yes. Use the Minify button to compress SQL into a single line for storage, logging, or transmission.
How do I format a PostgreSQL query online?
Paste your query, select PostgreSQL from the dialect dropdown, and click Format. The output will use PostgreSQL-compatible keyword handling.
Can AI explain my SQL query?
Yes. Click 'Explain SQL with AI' to get a step-by-step breakdown, performance notes, and improvement suggestions powered by AI.
Does this work on mobile?
Yes. The formatter is fully responsive and works on phones, tablets, and desktops.