offlinewebtools.com — free, watermark-free browser tools that stay on your device with nothing uploading to our servers

Regex Tester

Test and validate regular expressions with live matching

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

Regular Expression Pattern

Global (g) - Find all matches Case Insensitive (i) Multiline (m)

Test String

Report a bug

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.