Pocket Regex

Pocket Regex is the ultimate regex tool for developers, engineers, and anyone who works with text patterns. Write, test, and debug regular expressions in real time - no browser needed.

Regex Tester

• Live match highlighting as you type - see exactly what your pattern captures

• Color-coded matches with position info [start-end]

• Capture group breakdown - indexed and named groups

• Find & Replace mode with live preview and $1 group substitution

• Flag toggles: ignore case (i), multiline (m), dot-all (s), literal (x)

• Copy all matches or the replaced result to clipboard

• Save any pattern to your personal favourites

Regex Cheat Sheet - 65+ patterns

• Searchable library covering Email, URLs, Numbers, Dates, Validation, Code, Files, Security, and Advanced patterns

• Categories: Email & Comms · URLs & Web · Numbers · Date & Time · Validation · Programming · Files & Paths · Security · Advanced

• Tap "Test →" to load any pattern straight into the tester

• Expandable cards show description, live example, tags, and default flags

Favourites

• Save and name your own patterns — persisted across sessions

• Rename, delete, and reload saved patterns instantly

Whether you're validating emails, scraping logs, writing parsers, or just learning regex - Pocket Regex has you covered.