SQL Formatter Online Free — Format & Beautify SQL Queries
SQL Formatter is a free online tool that takes messy or minified SQL and reformats it with consistent indentation, keyword casing, and line breaks. Supports 7 SQL dialects including MySQL, PostgreSQL, SQLite, T-SQL, BigQuery and Spark SQL. All formatting runs in your browser — your queries are never uploaded to any server.
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How to Format SQL Online Free
- 01
Paste your SQL
Copy any SQL query — raw, minified, or already partially formatted — and paste it into the input area.
- 02
Choose dialect and options
Select your SQL dialect (MySQL, PostgreSQL, etc.) and adjust keyword case, indent size, and other options.
- 03
Copy the result
Formatted SQL with syntax highlighting appears instantly. Copy to clipboard or download as a .sql file.
Features
- ✓Supports 7 SQL dialects: MySQL, PostgreSQL, SQLite, T-SQL, BigQuery, Spark SQL
- ✓Syntax highlighting: keywords, strings, comments, numbers in different colors
- ✓Keyword case control: UPPERCASE, lowercase, or preserve original
- ✓Configurable indent: 2 or 4 spaces
- ✓Minify mode: compress SQL to single line for production
- ✓Stats bar: line count, character count, keyword count before/after
- ✓Auto-format on input change (600ms debounce) and Ctrl+Enter
- ✓100% client-side — queries never leave your browser
Frequently Asked Questions
- What SQL dialects does the formatter support?
- The SQL Formatter supports 7 dialects: Standard SQL, MySQL, PostgreSQL, SQLite, T-SQL (SQL Server), BigQuery, and Spark SQL. Each dialect has different reserved words and syntax rules which the formatter accounts for.
- Is my SQL query sent to a server?
- No. All formatting is done entirely in your browser using the sql-formatter JavaScript library. Your queries never leave your device and are never logged or stored on any server.
- What is the difference between formatting and minifying SQL?
- Formatting (beautifying) adds consistent indentation, line breaks, and keyword casing to make SQL human-readable. Minifying does the opposite — it removes all extra whitespace to produce the most compact SQL string, which can be useful for production configurations or reducing payload size.
- Why should I use UPPERCASE keywords in SQL?
- While SQL is case-insensitive for keywords, using UPPERCASE for reserved words (SELECT, FROM, WHERE) and lowercase for identifiers and table names is the most widely adopted convention. It makes queries visually easier to parse, clearly separating SQL structure from data identifiers.
- Can the formatter handle multiple queries at once?
- Yes. You can paste multiple SQL statements separated by semicolons and the formatter will handle them all. Use the "blank line between queries" option to add visual separation between statements in the output.