Free SQL Formatter & Beautifier

The SQL Formatter is a free online tool that formats and beautifies SQL queries with proper indentation and syntax highlighting for better readability.

Yes, it is completely free with no registration required. All formatting happens client-side in your browser.

No, all formatting happens locally in your browser. Your SQL queries are never sent to any server, ensuring complete privacy of your database queries.

Yes, the SQL Formatter & Beautifier is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

No account or registration is needed. Simply open the SQL Formatter & Beautifier in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.

The SQL Formatter & Beautifier works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

The formatter handles eight dialects: Standard SQL, MySQL, PostgreSQL, SQLite, SQL Server (T-SQL), Oracle, BigQuery, and Redshift. The dialect you pick drives keyword recognition and dialect-specific validation, so the output matches the database you actually run against rather than a generic guess. It also powers smarter warnings — for example, flagging a LIMIT clause in a SQL Server query, since T-SQL uses TOP or OFFSET...FETCH instead, or noting that Oracle expects ROWNUM or FETCH FIRST. Backtick identifiers from MySQL and other dialect quirks are parsed correctly too. If you're not sure which to choose, Standard SQL is a safe default that covers the most common syntax. Paste your query, select the matching dialect from the dropdown, and the formatting and validation hints adjust to it instantly.

It refers to where the comma sits in a multi-column list. Trailing commas (the default) put the comma at the end of each line, like "name," followed by "email" on the next line — the style most people write by hand. Leading commas place it at the start of the next line, so each line after the first begins with ", column". The practical advantage of leading commas is cleaner version-control diffs: adding or removing the last column doesn't touch the line above it, so the change shows up as a single added or deleted line instead of two. Teams that review SQL in pull requests often prefer them for that reason. This formatter lets you switch between both with one setting, so your column lists match whatever convention your codebase already uses.

No. Formatting only changes whitespace, line breaks, indentation, and optionally keyword casing — it never alters the logic, table names, conditions, or column list, so the query returns exactly the same result before and after. SQL ignores extra spaces and newlines between tokens, which is why a one-line query and a neatly indented one are functionally identical to the database. Keyword case is cosmetic too: SELECT, select, and Select all run the same. The one thing to watch is that identifiers inside quotes or backticks are case-sensitive in some setups, and the formatter preserves those untouched. A built-in side-by-side diff view lets you confirm nothing meaningful changed by comparing the original against the formatted output. Paste your query and review the diff to verify the reformat is purely visual.

As you format a statement, the analysis panel parses it and assigns a complexity score by weighting the structural parts of the query. Joins, subqueries, CTEs, window functions, aggregations, GROUP BY, DISTINCT, the number of tables, and the count of conditions each add points, with the heavier constructs — subqueries and window functions — contributing the most. The total maps to a label: Simple, Moderate, Complex, or Very Complex. It's a quick readability signal, not a performance benchmark; a high score means the query has many moving parts worth reading carefully, not necessarily that it runs slowly. Alongside the score, the panel lists the tables referenced, the joins and conditions, and any subqueries, giving you a structural map of code you didn't write. Paste an unfamiliar query to see its breakdown before you start editing.

Minifying collapses a query onto a single compact line, stripping the extra whitespace and line breaks that formatting adds. That's the opposite goal of beautifying, and it's useful when SQL has to live inside something else: embedding a statement in application code, a JSON config, a log line, or a one-line shell command where multi-line text is awkward to handle. The minified form is functionally identical to the formatted one — the database treats them the same — it's just easier to transport. The tool also reports a compression ratio so you can see how much shorter the result is. When you need the readable version back, paste the minified query in and format it again. Use the minify mode when you're packaging a query for code or config, and the formatter when you're reading or reviewing it.