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Regex Language Escaper — Cross-Language String Tool

Escape a raw regex pattern for Java, JavaScript, Python, Go, and other source languages in your browser, reducing double-backslash mistakes when embedding patterns in code.

Quick switch→Regex Highlight Tester

RegexEscapeMulti-language

Quick switch:Regex Highlight Tester Regex Tester

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Use cases

Move a browser-tested regex into a Java string
Check Python raw or normal string escaping before paste
Keep regex literals consistent across SDKs

How to use

Enter the pattern without surrounding delimiters
Review the escaped output for each language
Copy the source-ready string

Example input and output

Pattern

\d+\.\d+

Java string

\\d+\\.\\d+

FAQ

Why does a browser-tested regex fail in Java?

String literals need another escaping layer for backslashes. This tool adds that layer for the target language.

Should I include /pattern/ delimiters?

Usually enter only the pattern body. Add delimiters and flags separately for the target language.

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