SQL Formatter
Make long SQL queries readable.
Runs entirely in your browser — your data is never uploaded to any server.
How it works
- Paste your queryAny length, any dialect.
- Choose the dialectSo syntax is parsed correctly.
- Copy the resultAligned clauses and consistent casing.
What this tool does
- Seven dialects including T-SQL and PostgreSQL
- Keyword casing control
- Handles CTEs, subqueries and window functions
- Local formatting — queries containing schema details stay private
Frequently Asked Questions
No. Only whitespace and keyword casing change; SQL is case-insensitive for keywords.
Match your database. SQL Server uses T-SQL; picking the wrong dialect may misread dialect-specific syntax.
Procedural blocks format reasonably well, though very complex T-SQL or PL/SQL bodies can be simplified.
No. Formatting runs in your browser, which matters when the query reveals your schema.
Privacy and security
Your input is processed by JavaScript running inside your browser. Nothing you paste is sent over the network, logged, or stored — which is what makes this safe to use with production data. If you want to check this yourself: open your browser’s developer tools, switch to the Network tab, and use the tool — you will see no request carrying your file or input leave the page.