Developing complex regular expressions quickly blows my mind. Here are some online regex editors that help you by highlighting matching text and capture groups:

Ruby:
- Rubular Show archive.org snapshot
Javascript:
- RegExr Show archive.org snapshot
- Regular expression visualizer using railroad diagrams Show archive.org snapshot

UI/UX Design by

We make sure that your target audience has the best possible experience with your digital product. You get:

Design tailored to your audience
Proven processes customized to your needs
An expert team of experienced designers

Testing regular expressions visually

UI/UX Design by