SQL Formatter
Format and beautify SQL queries with proper indentation and keyword capitalization. Supports SELECT, INSERT, UPDATE, DELETE, and more.
Reviewed May 25, 2026. Privacy model: tool input is processed in your browser and is not uploaded to BytePane servers.
Step 1
Paste valid sql input
Add the sql input you want to convert. The conversion runs locally in your browser.
Step 2
Review the formatted sql
Check the generated formatted sql for field names, formatting, escaped characters, and empty values.
Step 3
Copy and verify before production use
Copy the output, then validate it against the tool, library, spreadsheet, API, or runtime that will consume it.
About SQL Formatter
SQL (Structured Query Language) is the universal language for relational databases, used by MySQL, PostgreSQL, SQLite, SQL Server, Oracle, and dozens of other database systems. Complex queries with multiple JOINs, subqueries, and aggregations can become extremely difficult to read when written on a single line. A SQL formatter transforms dense, unreadable queries into properly structured code with keyword capitalization, logical line breaks, and consistent indentation -- making complex queries understandable at a glance.
SQL Formatting Best Practices
The most widely adopted SQL style guide recommends uppercase for SQL keywords (SELECT, FROM, WHERE, JOIN) and lowercase for table and column names. Each major clause (SELECT, FROM, WHERE, ORDER BY, GROUP BY) should start on a new line. Column lists in SELECT statements should have one column per line when there are more than 2-3 columns. JOIN conditions should be on the same line as the JOIN keyword or indented directly below it.
AND/OR conditions in WHERE clauses are typically indented one level and placed on separate lines for clarity. Subqueries should be indented inside their parentheses. For complex queries with CTEs (Common Table Expressions using WITH), each CTE should be clearly separated. This formatter handles all standard SQL operations including SELECT, INSERT, UPDATE, DELETE, CREATE TABLE, and window functions across all major database dialects.
Safe quick-format workflow
For production SQL, formatting is only the first pass. After reflowing a query, check quoted strings, identifier casing, parameter placeholders, and dialect-specific syntax before running it. For automated enforcement, pair a browser formatter with a repository linter such as SQLFluff or a database-specific formatter in CI.
Readable SELECT lists
Long SELECT clauses are split into one column per line so aliases and expressions are easier to review.
Protected literals
Quoted strings and identifiers are restored after formatting so keyword casing does not rewrite literal data.
Review-ready output
Use the result for tickets, code review comments, docs, and quick query cleanup before running dialect validation.
Frequently Asked Questions
What SQL dialects are supported?
The formatter handles standard SQL keywords used across MySQL, PostgreSQL, SQLite, SQL Server, and Oracle. It focuses on formatting structure rather than dialect-specific syntax.
Does the formatter validate SQL?
No, the formatter only restructures the whitespace and capitalization. It does not parse or validate the SQL syntax. Invalid SQL will still be formatted based on keyword patterns.
Will this change strings or quoted identifiers?
The formatter protects single-quoted strings, double-quoted identifiers, backtick identifiers, and bracket identifiers before keyword formatting, then restores them afterward.
When should I use SQLFluff instead?
Use SQLFluff for CI linting, dbt projects, semantic rules, and team style enforcement. Use this online formatter for quick browser-side readability checks before pasting SQL into a review, ticket, or scratch query.