SQL Formatter Online: Format & Beautify SQL (15+ Dialects)
Format and beautify SQL online with our free SQL Formatter. Supports PostgreSQL, MySQL, SQLite, T-SQL, BigQuery, and 10+ dialects. Uppercase keywords, 2 or 4 space indent, copy, download, share. No install.
📐 Format & Beautify SQL Online—15+ Dialects, No Install
Our SQL Formatter turns minified or messy SQL into readable, indented code in your browser. Choose your dialect (PostgreSQL, MySQL, SQLite, T-SQL, BigQuery, and 10+ more), toggle uppercase keywords, set 2 or 4 space indent, and get instant formatting. Copy, download as .sql, or share via link. All processing runs client-side—your SQL never leaves your device. Perfect for code reviews, documentation, and debugging complex queries.
What is the SQL Formatter Tool?
The SQL Formatter is a free online tool that takes raw or minified SQL and reformats it with consistent indentation, line breaks, and optional uppercase keywords. You paste your query, pick a dialect so dialect-specific syntax is handled correctly, and the formatted result appears in a second panel. The tool uses the sql-formatter library and supports 15+ dialects, including Standard SQL, PostgreSQL, MySQL, MariaDB, SQLite, T-SQL (SQL Server), PL/SQL (Oracle), BigQuery, Redshift, Spark SQL, Hive, Trino, DB2, N1QL, and SingleStoreDB.
💡 Quick Tip
Select the dialect that matches your database (e.g. PostgreSQL or MySQL). Formatting updates live as you type—no button to click. Use "Load sample" to try an example query.
Why Use an Online SQL Formatter?
Formatted SQL is easier to read, review, and debug. An online formatter is useful when you don’t want to install a CLI or IDE plugin:
📄Code Reviews & Docs
- •Paste one-liner SQL from logs or tickets and format for PRs or wikis
- •Standardize style across the team (indent, keyword case)
- •Make complex JOINs, CTEs, and subqueries readable at a glance
🔒No Install, No Upload
- •Runs entirely in your browser—your SQL is never sent to a server
- •Share a link that encodes your query so others can open and format it
- •Works on any device with a modern browser
Using the SQL Formatter (Step by Step)
Our SQL Formatter & Beautifier is straightforward:
1Paste Your SQL
Paste your SQL into the left panel—whether a one-liner from a log, a query from a ticket, or a snippet from docs. Use "Load sample" to try an example. The editor has SQL syntax highlighting and line numbers.
2Choose Dialect and Options
Select your SQL dialect from the dropdown (e.g. PostgreSQL, MySQL, T-SQL). Choose 2 or 4 space indent and toggle UPPER for keyword casing. The formatted output in the right panel updates automatically.
3Copy, Download, or Share
Copy the formatted SQL to the clipboard, download it as a .sql file, or use Share to get a link. Anyone with the link can open the same query in the formatter.
Supported SQL Dialects
The formatter supports 15+ dialects so your database’s specific syntax is handled correctly:
| Dialect | Typical use |
|---|---|
| Standard SQL | Generic / ANSI SQL |
| PostgreSQL, MySQL, MariaDB, SQLite | Relational databases |
| T-SQL (SQL Server), PL/SQL (Oracle) | Enterprise databases |
| BigQuery, Redshift, Spark SQL, Hive, Trino | Data warehouses & analytics |
| DB2, N1QL (Couchbase), SingleStoreDB | Specialized platforms |
Before and After: Example
Paste a minified query and see it formatted with indentation and uppercase keywords:
Input (one line)
SELECT u.id, u.name, o.total FROM users u JOIN orders o ON u.id = o.user_id WHERE o.status = 'completed' AND o.total > 100 ORDER BY o.total DESC LIMIT 10;
Output (formatted, 2 spaces, uppercase)
SELECT u.id, u.name, o.total FROM users u JOIN orders o ON u.id = o.user_id WHERE o.status = 'completed' AND o.total > 100 ORDER BY o.total DESC LIMIT 10;
Best Practices
Get the most out of the SQL Formatter:
🎯Pick the Right Dialect
Dialect affects how reserved words and syntax are recognized. If the formatted result looks wrong (e.g. keywords not uppercased or odd line breaks), switch to the dialect that matches your database.
📐Format Before Committing
Run SQL through the formatter before adding it to version control or documentation. Consistent style (2 or 4 spaces, uppercase keywords) makes diffs and reviews easier.
Common Pitfalls
⚠️Formatter Is Not a Validator
The tool reformats your SQL for readability; it does not check whether the query will run or is semantically correct. Validate and test your SQL in your database or test suite.
❌Unparseable SQL Stays Unchanged
If the SQL is invalid or the parser can’t handle it, the formatter returns the original text unchanged. Fix syntax errors (e.g. unclosed quotes, missing commas) and try again.
Pro Tips
Combine the SQL Formatter with other tools:
🔗Format JSON or XML Too
Use our JSON Formatter or XML Formatter for configs and API payloads. Use the Code Editor for multi-language snippets including SQL.
✅ Format SQL in Your Browser Now
Use our free SQL Formatter to beautify SQL with 15+ dialects, configurable indent and keyword casing, and copy, download, or share. No install, no sign-up—all processing in your browser.
Related Tools
Related Articles
Magic Box: Intelligent Content Detection That Learns Your Workflow
Discover how Magic Box instantly detects JSON, HTML, curl, JWT, CSV, regex, and 20+ formats. Learn how it adapts to your patterns and suggests workflows to accelerate your development.
Color Picker: Hex, RGB, HSL Converter & Eyedropper Online
Free online color picker with hex to RGB, RGB to hex, and HSL conversion. Pick colors with visual picker or eyedropper. WCAG contrast checker, shareable URL, palette export. No sign-up.
Flow Canvas: Free Online Flowchart & Flow Diagram Maker
Create flowcharts and flow diagrams online by clicking to add nodes and dragging to connect. Auto-styling for database, API, user. Templates, export, share. No syntax—visual flowchart maker in the browser.