This online SQL formatter and beautifier turns minified or messy queries into clean, properly indented SQL with keyword highlighting.
Quickly format SQL queries for MySQL, PostgreSQL, Oracle and SQL Server right in your browser with no server upload.
A SQL formatter is a tool that takes raw or minified SQL statements and rewrites them with consistent indentation, line breaks and casing. It keeps your queries readable, makes code review easier and helps you spot logic errors in long JOIN, WHERE and window function clauses before you ever run them against a database.
Production SQL is often written as a single long line, generated by an ORM, or pasted from logs without any formatting. A SQL beautifier restores structure by aligning keywords, indenting subqueries and CTEs, and highlighting syntax. The result is queries that are easier to debug, refactor, share with teammates and commit to version control.
Formatting SQL with this tool takes three simple steps: paste your query into the Input editor, pick the SQL dialect and indent size from the options dropdowns, and copy or download the beautified result. Everything runs in your browser, so you can safely format queries that reference internal schemas or sensitive column names.
Our SQL formatter is built for real database work, not just pretty output. It understands multiple dialects, converts keywords to upper case for readability, supports tabs or 2 / 4 space indentation, and keeps comments intact. Combined with a Monaco-powered editor, you get syntax highlighting, error indicators and full-screen mode for complex queries.
Under the hood the formatter runs a dialect-aware tokenizer that splits your query into keywords, identifiers, literals, operators and comments. Each token is classified and then passed to a printer that applies indentation rules: new lines before major clauses (SELECT, FROM, WHERE, GROUP BY, ORDER BY), nested indentation for subqueries and CTEs, and aligned commas for long column lists.
Because the parser is dialect-aware, vendor-specific syntax such as PostgreSQL's RETURNING, SQL Server's TOP, Oracle's CONNECT BY or MySQL backticks are recognised and preserved instead of being mangled into generic SQL.
The tool ships with everything you need to clean up day-to-day queries without jumping between apps:
SELECT, FROM, JOIN) for consistency..sql file.A SQL beautifier is useful well beyond "making code look nice". Typical scenarios include:
JOINs, CTEs and subqueries onto separate lines to isolate the clause that is misbehaving.Yes. All formatting runs 100% client-side in your browser using JavaScript - your queries are never uploaded, logged or sent to any server. This matters when your SQL references production table names, internal schemas or customer data, because those details never leave the current tab.
There is no account, no tracking and no rate limit. Close the tab and every query you formatted is gone from the tool instantly.
DevTools SQL Formatter is part of a wider suite of developer utilities focused on speed, privacy and a distraction-free UI. It is completely free, has no ads, and is maintained with the same Monaco editor and code style as the rest of the toolkit, so switching between formatters feels seamless.
Whether you format one query a week or dozens per day, you get a predictable, professional environment for polishing SQL before it lands in a PR, a Jira ticket or your production pipeline.
After formatting your query you can copy the result to the clipboard or download it as a .sql file - handy for sharing migrations, sending snippets to teammates or attaching reproducible examples to bug reports.
Working with data? Pair the SQL formatter with other DevTools utilities to keep your workflow in one place: JSON Formatter for beautifying API responses, XML Formatter for cleaning up XML payloads and schemas, and CSV Viewer to inspect exported query results.
Yes, it is completely free with no registration, ads or usage limits.
No. All formatting happens locally in your browser - your queries never touch our servers.
You can format Standard SQL, MySQL, PostgreSQL, SQLite, MariaDB and BigQuery queries. Vendor-specific syntax from Oracle and SQL Server that follows ANSI SQL is also handled.
No. The formatter only rewrites whitespace, indentation and keyword case. The tokens, identifiers and query semantics are preserved exactly as written.
Yes, the tool handles long multi-statement scripts efficiently. Performance is only limited by your browser's memory.
Yes. Use the indentation dropdown to pick 2 spaces, 4 spaces or tabs to match your team's style guide.
Yes. Reserved keywords such as SELECT, FROM, WHERE and JOIN are automatically converted to upper case for consistency and readability.
To deepen your SQL knowledge beyond formatting, here are reliable external resources for learning and reference: