SQL Formatter
Free online SQL formatter. Paste any SQL query and instantly get clean, readable, indented SQL. Supports PostgreSQL, MySQL, Snowflake, BigQuery, SQLite, Redshift, Spark, MariaDB, SQL Server, and ClickHouse dialects. Runs entirely in your browser — no data is sent to any server.
What is an SQL Formatter?
An SQL formatter automatically rewrites SQL queries with consistent indentation, line breaks, and keyword capitalization — without changing what the query does. Formatted SQL is dramatically easier to read, review, and debug, especially for complex queries involving multiple joins, subqueries, CTEs, and window functions.
SQL formatting is a standard part of database development workflows. Just as code formatters (Prettier, gofmt, Black) enforce consistent style in application code, SQL formatters enforce readability in query code — making it easier to spot logic errors, review changes in pull requests, and onboard new team members.
This formatter is dialect-aware: selecting the right database (PostgreSQL, MySQL, Snowflake, BigQuery, SQLite, Redshift, Spark SQL, MariaDB, SQL Server, or ClickHouse) enables syntax-specific formatting for features unique to each database. The tool runs entirely in your browser — your queries are never sent to any server.
Frequently asked questions
What is an SQL formatter and why should I use one?
An SQL formatter automatically rewrites SQL with consistent indentation, spacing, and line breaks — without changing what the query does. Proper formatting makes it much easier to read and review complex queries with joins, subqueries, and CTEs, reduces errors, and improves collaboration.
Does this SQL formatter store or log my queries?
No. This tool runs entirely in your browser. Your SQL queries never leave your machine — there are no server calls, no logging, and no data retention. It is safe to use with production queries and sensitive data.
Which SQL dialects does this formatter support?
This formatter supports 10 SQL dialects: PostgreSQL, MySQL, Snowflake, BigQuery, SQLite, Amazon Redshift, Apache Spark SQL, MariaDB, Microsoft SQL Server (T-SQL), and ClickHouse. Select the right dialect for syntax-aware formatting specific to your database.
What is the difference between SQL formatting and SQL minifying?
SQL formatting expands and indents SQL for human readability — adding line breaks, consistent spacing, and indentation. SQL minifying does the opposite: it compresses SQL into a single line by stripping all whitespace and comments, useful for embedding queries in code or reducing payload size.
Can I format SQL stored procedures and functions?
Yes. The formatter handles multi-statement SQL including stored procedures, functions, triggers, and scripts. For best results with procedural SQL (PL/SQL, T-SQL), select the matching dialect.
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