Placeholders follow the selected dialect
PostgreSQL uses numbered dollar placeholders, Transact-SQL uses named parameters, and MySQL and SQLite use positional question marks. Bind in the emitted order.
- Input
- SQL
- Dialects
- 4 explicit
- Runtime
- Browser
Replace supported SQL literals with placeholders
Replace supported scalar literals in parsed DML with dialect-specific placeholders and return a reviewable binding map.
Local processingNo sign-upNever executed
Parameterize SQL
Inputs stay in this browser tab. Parser-heavy work uses a tighter 256 KiB safety cap.
Parameterized SQL and bindings
No result is placed in a URL, account, API, or remote log.
What this tool does
Bounded, explicit-dialect processing
Parameterization is not an authorization control and does not make arbitrary dynamic SQL safe. This route accepts only parsed SELECT, INSERT, UPDATE, DELETE, and REPLACE statements with supported scalar literals.
Unsupported syntax fails closed
Backslash string escapes, executable DDL, unknown AST shapes, and statements outside the listed DML subset are rejected rather than rewritten.
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 FormatterValidate the selected dialect, then apply readable whitespace and keyword casing without executing the statement.SQL Query AnalyzerSummarize syntax-tree facts for the selected dialect without claiming runtime plan or cost information.