Regex Escape Tool

Regex escaping is the process of prefixing special regular expression characters with a backslash (\\) so they are treated as literal characters rather than as regex operators. In regular expressions, characters like ., *, +, ?, (, ), [, ], {, }, ^, $, |, and \\ itself have special meanings. When you want to match these characters literally (e.g., matching a literal dot in a filename), you must escape them.

For example, the regex pattern \d+\.\d+ matches numbers like 3.14. The dot is escaped with a backslash so it matches a literal period instead of the "any character" wildcard. Without escaping, 3.14 would also match 3a14, 3-14, or any other character in the dot position.

This tool is essential for developers working with regular expressions in programming languages, text editors, database queries, or log analysis. It helps you quickly escape user-supplied input before using it in a regex pattern, preventing both unintended matches and potential ReDoS (Regular Expression Denial of Service) vulnerabilities from unescaped input.

1. Enter text — Type or paste the string containing special regex characters into the input textarea. Use the Load Sample button to see an example.
2. Select characters to escape — Use the checkboxes to choose which special characters to escape. By default, all major regex metacharacters are selected. You can disable specific characters if your use case requires leaving some unescaped.
3. View escaped output — The escaped result appears in the output section, with a count of how many characters were escaped.
4. Copy the result — Click Copy Escaped to copy the escaped string to your clipboard for use in your regex pattern.