Free SQL Formatter Online
The best free SQL formatter online. Beautify your SQL queries with proper indentation and keyword capitalization for MySQL, PostgreSQL, and SQL Server.
Performance Tip
Properly formatted SQL is easier to debug and helps in identifying missing joins or poorly optimized where clauses.
Built With Care
“Formatting runs entirely in your browser using lightweight rules: repeated whitespace is collapsed, reserved keywords are uppercased and moved onto their own lines, and clause lines receive four-space indentation. Because the code is processed in your browser, no network calls are made.”
SQL Formatter & Beautifier
A free online SQL formatter that turns minified or messy queries into readable code by normalizing whitespace, capitalizing reserved keywords, and indenting clauses. Works with MySQL, PostgreSQL, SQL Server, and SQLite queries, with no signup and no server upload.
- 1Paste your unformatted SQL into the Raw Query box.
- 2Click 'Format SQL' to apply keyword capitalization and indentation.
- 3Review the output for correct clause ordering and nested subquery alignment.
- 4Copy the beautified query to your clipboard.
- 5Paste it back into your database client, editor, or migration file.
- 6Repeat for each query, or compare side by side with the original to confirm nothing changed semantically.
- Keyword Uppercasing: Reserved words like SELECT, JOIN, and UNION are standardized to uppercase.
- Clause Indentation: Main clauses start on fresh lines with consistent four-space indents.
- Comma Alignment: List items are placed one per line for easier scanning.
- Multi-Dialect: Handles MySQL, PostgreSQL, SQL Server, and SQLite keyword sets.
- Instant Results: Formatting happens in the browser with no page reload.
- In-Browser Processing: Queries are processed entirely in your browser — nothing is transmitted.
SQL Formatter & Beautifier Specs
Limits
- SQL dialects: standard, MySQL, PostgreSQL, SQLite
- Query length up to paste size
Formats
- Output: indented SQL
Defaults
- PostgreSQL dialect
- Uppercase keywords
How it works
- Client-side SQL tokenizer/formatter
Honest caveats
- EXPLAIN plans not formatted specially
- Comments preserved
Real Ways People Use This
Query Cleanup
Reformat minified SQL copied from logs or generated code so it is readable again.
Code Reviews
Normalize query style before sharing with teammates so diffs focus on logic, not spacing.
Documentation
Produce clean, presentable query examples for tutorials, wikis, and API docs.
Debugging
Spot missing joins, misplaced commas, or unclosed parentheses more easily in formatted output.
Migration Scripts
Tidy up legacy DDL and DML statements before adapting them for a new database version.
- Formatting does not validate SQL syntax, so always execute formatted queries to confirm they run.
- Keyword variations between dialects can produce slightly different layouts for some statements.
- Heavily nested subqueries may need manual review after formatting.
- 1Run the formatted query in your database to confirm it still executes correctly.
- 2Spot-check that every comma and parenthesis survived the reformat.
- 3Compare against the original if a query behaves differently after formatting.