SQL Parameter Injector Preview

How to use this developer tool

1. Paste the parameterized sql or load a local text file.
2. Adjust the available checks or parsing options.
3. Select Build Preview or press Ctrl/Cmd + Enter.
4. Review the summary, detailed output, and structured export before using the result.

What this developer tool does

Preview how named values would appear inside a parameterized SQL statement without connecting to a database. Supply a JSON object, choose a common SQL string-escaping style, and inspect every replacement or missing value. The page deliberately labels the result as a preview because application code should still bind parameters through a database driver.

Do not execute the preview as a substitute for prepared statements. Driver binding is the correct defense against SQL injection.

Example

The bundled sample demonstrates the expected input. Select Sample, run the analyzer, and compare the detailed output with the summary metrics.

SELECT * FROM orders
WHERE customer_id = :customer_id
  AND status = :status;

Use cases

• Pre-commit and code-review checks
• Query or repository troubleshooting
• Generating copy-ready diagnostics for an issue

Tips for reliable output

• Use the exact text that the target system will receive.
• Keep dialect- or policy-specific options aligned with your project.
• Review warnings even when the main result is valid.
• Save structured JSON when another script needs the findings.
• Confirm destructive operations in the real environment separately.

Processing details

Finds :name placeholders outside quoted strings and comments, then renders typed JSON values as SQL literals for inspection only.

Do not execute the preview as a substitute for prepared statements. Driver binding is the correct defense against SQL injection.