SQL Formatter Online
Format, beautify, and minify SQL queries instantly. Choose your preferred indentation and keyword casing for clean, readable output. All processing happens in your browser -- your data never leaves your device.
Supports SELECT, INSERT, UPDATE, DELETE, CREATE TABLE, JOINs, and more
SQL Input
Paste or type a SQL query to format, beautify, or minify
How to Use This SQL Formatter
Paste Your SQL
Copy your SQL query from your code editor, database tool, or any source and paste it into the input area above.
Choose Your Style
Select your preferred indentation (2 spaces, 4 spaces, or tabs) and keyword casing (UPPERCASE, lowercase, or preserve original).
Format or Minify
Click Format to beautify with proper indentation, or Minify to compress into a single line. Copy the result with one click.
How SQL Formatting Works
Tokenize → Identify Clauses → Indent & Break Lines → Apply CasingSQL formatting works by tokenizing the raw SQL text into keywords, identifiers, strings, operators, and punctuation. The formatter then applies layout rules based on the type of each token.
Step 1: Tokenize the SQL into keywords, identifiers, and literalsStep 2: Merge compound keywords (GROUP BY, LEFT JOIN, etc.)Step 3: Place major clauses on new lines (SELECT, FROM, WHERE)Step 4: Indent sub-expressions (column lists, conditions)Step 5: Apply chosen keyword casing (UPPER, lower, preserve)Key formatting rules applied by this tool:
- Major clauses start new lines -- SELECT, FROM, WHERE, JOIN, GROUP BY, ORDER BY, HAVING, and LIMIT each begin on a fresh line
- Column lists and conditions are indented -- items after SELECT, WHERE conditions, and JOIN columns are indented one level
- Commas break lines in clause bodies -- each selected column or GROUP BY expression gets its own line for readability
- AND/OR start new indented lines -- logical operators in WHERE clauses are placed at the beginning of new indented lines
This tool processes everything client-side in your browser. No SQL queries are ever sent to a server, making it safe for proprietary database schemas, credentials in connection strings, or sensitive business logic.
Frequently Asked Questions
What is SQL formatting?
SQL formatting (also called beautifying or pretty-printing) adds proper indentation, line breaks, and consistent keyword casing to SQL queries. This makes complex queries much easier to read, debug, and maintain. The query logic remains identical -- only whitespace and letter casing are changed.
Does this tool validate my SQL syntax?
This tool focuses on formatting, not full syntax validation. It tokenizes your SQL and restructures whitespace and keyword casing. It will format syntactically incorrect SQL as best it can, but it does not connect to a database to verify table names, column names, or query logic. For full validation, test your query against your actual database.
Which SQL dialects are supported?
The formatter handles standard SQL syntax including SELECT, INSERT, UPDATE, DELETE, CREATE TABLE, ALTER, JOIN, subqueries, CTEs (WITH clauses), window functions, and common aggregate functions. It works well with MySQL, PostgreSQL, SQLite, SQL Server, and Oracle SQL. Dialect-specific extensions are preserved as-is.
Should I use uppercase or lowercase SQL keywords?
Both are valid. UPPERCASE keywords (SELECT, FROM, WHERE) are the traditional convention and make SQL keywords visually distinct from table and column names. Lowercase is becoming more popular in modern codebases. The most important thing is consistency within your project. Choose one style and stick with it.
Is my data safe when using this tool?
Yes. All SQL processing happens entirely in your browser using JavaScript. Your queries are never sent to any server. Nothing is logged, stored, or transmitted. You can verify this by using the tool with your browser in offline mode after the page loads.
Privacy Notice
This SQL formatter runs entirely in your web browser. Your queries are never uploaded, stored, or processed on any server. All formatting and minification operations use browser-based JavaScript. You can safely use this tool with sensitive SQL queries, database schemas, or proprietary business logic.