What is a SQL Formatter?
A SQL formatter (also called a SQL beautifier, prettifier or tidy tool) takes a messy, single-line or poorly indented query and restructures it with consistent indentation, line breaks and keyword casing. It makes complex queries — JOINs, subqueries, CTEs and window functions — far easier to read and review, without changing what the query does.
How does it work?
Paste your SQL and click Format. The tool parses your query for the selected dialect and re-prints it with clean indentation and your chosen keyword case. Click Minify to collapse it back into one compact line. Everything runs locally in your browser — your SQL is never uploaded.
Features & Capabilities
How to Use
- Paste your SQL query into the input area (or click Load Sample).
- Select your database dialect, keyword case, and indent width.
- Click Format to beautify, or Minify for a compact single line.
- Use Copy or Download to grab the formatted SQL for your editor or documentation.
Why Format Your SQL?
Well-formatted SQL is easier to review, debug and maintain. A consistent style — keywords aligned, JOINs and WHERE conditions on their own lines, predictable indentation — lets you spot a missing condition or a mis-joined table at a glance. It also makes code review and version-control diffs cleaner: a one-line change shows up as a one-line diff instead of a wall of reformatted text. Use this SQL beautifier before committing a migration, pasting a query into a ticket, or sharing it with a teammate.
Choosing the Right Dialect
SQL syntax varies between databases. MySQL uses backticks for identifiers, SQL Server (T-SQL) uses square brackets, and PostgreSQL, Oracle, SQLite and BigQuery each add their own functions and operators. Selecting the matching dialect ensures the formatter handles these correctly instead of breaking on syntax it doesn't recognise. When in doubt, start with Standard SQL — it handles the most common ANSI syntax.
Frequently Asked Questions
Is this SQL formatter free and is there any signup?
Yes — it's completely free with no signup, no account and no limits. Just paste your query and format it as many times as you like.
Is my SQL uploaded to a server?
No. All formatting happens locally in your browser using a JavaScript engine. Your SQL queries are never sent, uploaded or stored anywhere — safe for production and proprietary queries.
Which SQL dialects are supported?
MySQL, PostgreSQL, SQL Server (T-SQL), Oracle (PL/SQL), SQLite, BigQuery and Standard SQL. Pick the one matching your database so dialect-specific syntax is handled correctly.
Does formatting change my query's results?
No. Formatting only changes layout — indentation, line breaks and keyword casing. The logic and results of your query stay exactly the same. (Note: a formatter improves readability, not performance, and won't fix a query that is logically wrong.)