Dialect selection is required
The formatter never auto-detects a database. The same source can be valid with different meaning across engines, so the selected grammar is part of the result.
- Input
- SQL
- Dialects
- 4 explicit
- Runtime
- Browser
Format SQL for one explicit database dialect
Validate the selected dialect, then apply readable whitespace and keyword casing without executing the statement.
Local processingNo sign-upNever executed
Format SQL
Inputs stay in this browser tab. Parser-heavy work uses a tighter 256 KiB safety cap.
Formatted SQL
No result is placed in a URL, account, API, or remote log.
What this tool does
Bounded, explicit-dialect processing
Formatting is a presentation task, not a query-safety or correctness proof. Select the dialect explicitly because keywords, quoting, functions, and statement grammar differ.
Validation and formatting stay separate
Syntax is checked with a dialect parser before formatting. Formatting does not inspect a schema, optimize a plan, resolve names, or prove that a statement is safe to run.
The parser runs locally under byte, statement, AST-node, depth, row, column, diagnostic, and output limits. It never connects to a database or resolves files and URLs.
Questions and answers
Related SQL tools
SQL Syntax ValidatorParse one explicit SQL dialect and report syntax status, statement count, and statement types.SQL Query AnalyzerSummarize syntax-tree facts for the selected dialect without claiming runtime plan or cost information.SQL ParameterizerReplace supported scalar literals in parsed DML with dialect-specific placeholders and return a reviewable binding map.