Regex Playground vs Atrium Agent Client

Regex Playground is a powerful yet intuitive tool designed for developers, data scientists, and anyone working with text patterns. Whether you're validating emails, parsing logs, or extracting data, test your regular expressions instantly with live syntax highlighting and detailed match analysis. KEY FEATURES Real-Time Pattern Matching - Type your regex and see matches highlighted instantly in your test text. No more guessing — know immediately if your pattern works. Visual Match Analysis - Tap any match to inspect capture groups, match ranges, and see whether you've achieved a full or partial match. Perfect for debugging complex patterns. Pattern Explanation Engine - New to regex? Toggle the explanation view to see a color-coded breakdown of every token in your pattern. Learn what ^, \d, (?:...), and lookahead assertions actually do. Built-In Pattern Library - Jump-start your workflow with 15+ production-ready patterns covering emails, phone numbers, URLs, dates, credit cards, passwords, IP addresses, and HTML tags. Save your own custom patterns and organize them by category. Regex Flags Support - Enable Case Insensitive, Multiline, Dot All, and Extended modes to test patterns against real-world text formats. Test Case Suite - Save reusable test cases with expected outcomes. Run your pattern against your entire test suite and see pass/fail results with a visual progress indicator. Essential for regression testing regex patterns. Smart History - Your recent patterns are automatically saved so you can iterate quickly without retyping. Favorite patterns you use daily. DESIGNED FOR DEVELOPERS - Clean, distraction-free interface optimized for focused work - Monospace fonts for pattern readability - Dark mode support - No account required — all data stored locally - Works offline completely WHO IT'S FOR - iOS/macOS developers parsing text data - Backend engineers validating API inputs - Data analysts cleaning datasets - Students learning regular expressions - QA engineers writing test validations Stop switching between browser tabs and IDEs. Build better regex patterns faster with Regex Playground.

Atrium is the iPhone and iPad companion to Atrium for Mac. Follow your Codex and Claude tasks, send prompts, and manage your development work while your Mac runs the agents. • Pair by scanning the QR code in Atrium for Mac or opening a shared pairing link. • Connect to your Mac from any network with end-to-end encryption. • Read live agent replies and send prompts with images or voice transcription. • Choose agent models and reasoning settings. • Browse projects, review Git changes and diffs, and run workspace commands. • Switch between paired Macs and receive task notifications. Atrium for Mac is required. Download the latest macOS release from the link on the pairing screen. Codex and Claude require their respective command-line tools and accounts on your Mac. Optional voice transcription uses your own OpenAI API key.