SQL Escape Tool

SQL escaping is the process of converting special characters in string literals to their SQL-safe representations. The most critical character to escape in SQL is the single quote ('), which is used to delimit string values. A single quote inside a string is typically escaped by doubling it ('') in standard SQL, or by using a backslash (\') in MySQL with NO_BACKSLASH_ESCAPES disabled.

For example, the name John O'Brien becomes 'John O''Brien' when properly escaped as a SQL string literal.

SQL Escape Methods by Database

1. Escape — Type or paste SQL string content into the left panel, then click Escape to convert special characters to SQL-safe sequences.
2. Unescape — Type or paste escaped SQL content into the right panel, then click Unescape to revert escape sequences to their actual characters.
3. Options — Toggle Escape backslashes for MySQL mode, or Wrap in single quotes to surround the output with quotes.
4. Swap & Clear — Click Swap to exchange escape/unescape values, Clear All to reset everything.

• SQL injection prevention — Always escape string values containing user input before building SQL queries to prevent SQL injection attacks.
• Dynamic query building — Properly escape strings when constructing dynamic SQL queries in application code.
• Database migration scripts — Ensure string data with special characters is correctly escaped in SQL migration files.
• Debugging SQL logs — Unescape escaped SQL strings in database logs to read the actual query content.
• Data import/export — Escape strings containing quotes, backslashes, and control characters when preparing SQL dump files.