SQL Formatter

The SQL Formatter analyzes a given SQL string to produce a consistent, readable version suitable for review and collaboration. It operates entirely client-side, without sending data to external servers. The primary users are developers, database engineers, and data analysts who review, share, or integrate queries. It is used when preparing queries for code reviews, documentation, or collaboration. It preserves semantics while reformatting whitespace.
Core processing occurs through tokenization and rule-based reformatting. The formatter recognizes statements, clauses, and subqueries, applies indentation levels, and aligns commas and operators. It can enforce keyword case, wrap lines at a configurable length, and maintain spacing around tokens. The behavior is dialect-aware, with ANSI rules as the baseline.
Unique value and differentiators: fast in-browser, no server round-trips, configurable preferences, and robust handling of nested structures. It supports common dialects like MySQL, PostgreSQL, and SQL Server, while defaulting to ANSI SQL. By preserving comments and string literals, it ensures readability without altering semantics.
Core features and use cases: paste SQL, apply indentation, adjust wrap length, and export or copy the result. Typical use cases include preparing queries for code reviews, sharing examples in documentation, or standardizing code across a team. Outputs are purely formatted text; no execution or data modification occurs.
Output structure and reliability: the tool returns a single formatted SQL string. In case of syntax quirks, a best-effort layout is produced with conservative spacing. It is designed for consistency and auditability, helping teams maintain coding standards across projects.