Regex to Code Converter
Wrap a regex for JavaScript, Python, PHP, Java, Go, Rust, or C# with proper escaping and syntax.
What is Regex to Code?
Regex syntax differs subtly across languages (delimiter conventions, escaping rules, flag syntax). This converter produces the correct native regex literal or constructor string for your chosen language.
How it works
We apply each language's escaping rules — double-escape backslashes for double-quoted strings (Java, Go), add delimiters (PHP), convert flags to the language's native format — and output a copyable code snippet.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Ready-to-paste snippets
Convert a pattern into a code snippet for your language — escaping, flags, and literal syntax applied for you.
Common mistakes
Flavor differences between languages
Each language's regex flavor differs slightly — pick the target language so the output matches its syntax.
Frequently asked questions
Why do backslashes double in Java/Go?
These languages use the backslash as a string escape character. A literal backslash in the regex must be written as double-backslash in the source code.