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SQL Formatter

Beautify and format messy SQL queries with proper indentation, keyword uppercasing, and consistent styling. Supports SELECT, INSERT, UPDATE, CREATE TABLE, and more. Runs entirely in your browser.

Why Format SQL?

Well-formatted SQL is easier to read, debug, and maintain. When queries are written as a single long line, it's nearly impossible to spot logical errors, missing JOINs, or incorrect WHERE conditions. Proper formatting puts each clause on its own line with consistent indentation, making the query structure immediately visible.

What This Formatter Does

  • Keyword uppercasing — All SQL keywords (SELECT, FROM, WHERE, etc.) are converted to uppercase for consistency.
  • Clause separation — Major clauses (FROM, WHERE, JOIN, ORDER BY, etc.) start on new lines.
  • Indentation — Continuation clauses (AND, OR, ON) are indented for visual clarity.
  • Column separation — Columns in SELECT statements are separated onto individual lines.

Supported SQL Statements

  • SELECT with JOINs, WHERE, GROUP BY, ORDER BY, LIMIT
  • INSERT INTO with VALUES
  • UPDATE with SET and WHERE
  • DELETE FROM with WHERE
  • CREATE TABLE with constraints
  • ALTER TABLE
  • Subqueries and UNION operations

Frequently Asked Questions

Does this tool support all SQL dialects?

This formatter works with standard SQL syntax that is common across MySQL, PostgreSQL, SQLite, and SQL Server. Dialect-specific syntax (like PostgreSQL's :: casting or MySQL's backtick quoting) is preserved but not specially handled.

Does formatting change the meaning of my query?

No. The formatter only changes whitespace and keyword casing. The logical meaning of your SQL query is completely preserved. The formatted output will produce identical results when executed.

Can it handle very large queries?

Yes, this tool can handle queries of several thousand lines without issues. For extremely large query files, consider using a desktop SQL IDE like DataGrip, DBeaver, or the SQL formatting extension in VS Code.