Beautify and format SQL queries for readability. Supports SELECT, INSERT, UPDATE, CREATE and more.
This free online SQL formatter and beautifier takes dense, unreadable SQL queries and reformats them with proper indentation, uppercase keywords, and logical line breaks - making complex queries easy to read, review, and maintain. It supports multiple SQL dialects including MySQL, PostgreSQL, SQLite, MariaDB, and T-SQL, so it fits naturally into any database workflow. All formatting runs entirely in your browser using the open-source sql-formatter library.
The formatter uses the open-source sql-formatter library (loaded from jsDelivr CDN) to tokenize your SQL query and reconstruct it with proper keyword casing, consistent indentation, and logical line breaks. You can select the SQL dialect - MySQL, PostgreSQL, SQLite, MariaDB, or T-SQL - to ensure dialect-specific keywords are handled correctly. All formatting runs in your browser with no server communication required.
Yes, completely. The SQL Formatter runs entirely client-side in your browser - no SQL is transmitted to any server, stored in a database, or logged anywhere. This makes it safe to paste queries that reference internal table names, column names, or business logic that you cannot expose externally. The CDN script is loaded once and then operates offline within your browser session.
The formatter supports Generic SQL, MySQL, PostgreSQL, SQLite, MariaDB, and T-SQL (Microsoft SQL Server). Selecting the correct dialect ensures that dialect-specific functions, keywords, and quoting styles (e.g., backticks in MySQL vs. double quotes in PostgreSQL) are formatted correctly. For most standard SELECT/INSERT/UPDATE/DELETE queries, Generic SQL works well across all databases.
No - SQL formatting only changes whitespace and keyword casing, which are ignored by the database engine's query parser. The logical meaning, execution plan, and result set of the query remain identical before and after formatting. You can safely copy the formatted output back into your SQL client, ORM, or migration file without any functional changes.
Database clients like DBeaver or pgAdmin include built-in SQL formatters, but they require a full installation and an active database connection. This online tool works instantly in any browser without installing software, which makes it useful on shared or locked-down machines, in CI/CD documentation workflows, or when you just want to quickly clean up a query snippet without opening a full IDE.