Regex Tester for Go
Free online regex tester with Go code examples
Working with regex tester in Go? Our free online regex tester helps Go developers format, validate, and process data instantly. Below you will find Go code examples using regexp (built-in) so you can achieve the same result programmatically in your own projects.
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Open Regex TesterGo Code Example
package main
import (
"fmt"
"regexp"
)
func main() {
text := "Contact support@example.com"
re := regexp.MustCompile("[\\w.+-]+@[\\w-]+\\.[\\w.]+")
matches := re.FindAllString(text, -1)
fmt.Println(matches)
}Quick Setup
Library: regexp (built-in)
// Built-in package — no installation neededGo Tips & Best Practices
- regexp.MustCompile panics on invalid patterns — use for constants
- Go uses RE2 syntax (no backreferences or lookaheads)
- Use backtick strings to avoid escaping: `pattern`