Which SQL dialects are supported?

The formatter works with standard ANSI SQL and common dialects like PostgreSQL, MySQL, and SQLite. It recognises the most common keywords and functions across dialects.

Does it preserve comments?

In Format mode, inline and block comments are kept and placed on their own lines. In Minify mode they are stripped to reduce size.

Is the output safe to run in production?

Yes for Format — it only changes whitespace and keyword casing. Minified output is functionally identical but harder to read. Use it for deployment logs or embedding.

Is my SQL sent anywhere?

No. All formatting and minification run entirely in your browser. Your queries never leave your device.

Will formatting change query performance?

No. SQL engines parse queries into an execution plan regardless of whitespace. Formatting is purely cosmetic and does not affect indexes, joins or performance in any database.

Does minifying SQL actually help?

Rarely for execution — the database parses both versions identically. Minification is useful when SQL is embedded in code, logs, or HTTP payloads where byte size matters. For readability during debugging, always prefer the formatted version.

SQL Formatter & Minifier

Format messy SQL into readable code or minify it into a single line for logs. Control keyword casing (UPPERCASE, lowercase or Preserve) and indentation level. Comments are kept in Format mode and stripped in Minify mode.

How to use

Paste your SQL

Type or paste the SQL query into the input field.

Choose Format or Minify

Format beautifies the query; Minify compresses it into fewer lines.

Set keyword casing

Choose UPPERCASE, lowercase or Preserve for keywords.

Copy the result

Copy the formatted or minified SQL to your clipboard.

FormatMinify

Keyword case

Indent

SQL input

Result

SELECT u.id, u.name, u.email, COUNT(o.id) AS order_count FROM users u LEFT JOIN orders o ON o.user_id = u.id WHERE u.created_at >= '2026-01-01' AND u.status = 'active' GROUP BY u.id, u.name, u.email HAVING COUNT(o.id) > 0 ORDER BY order_count DESC LIMIT 100;