Pyodios vs Regex Playground

Run Python on your iPhone or iPad, with nothing sent to a server. Pyodios gives you a nearly real Python workspace: Jupyter notebooks, a script editor, an interactive REPL, plots, package management, and a variable inspector, all running on-device. NumPy and matplotlib come pre-loaded. Install pandas, scikit-learn, Plotly, and hundreds of other WebAssembly compliant packages from PyPI with a tap. Feature highlights: - Jupyter-compatible .ipynb notebooks with code and markdown cells - Python script editor with syntax highlighting, folding, and snippets - REPL with history, search, and code completion - Static matplotlib plots and interactive Plotly, Bokeh, and Altair charts - Environment panel with DataFrame viewer, variable diff, and watch list - Offline Help view with search - Files browser with iCloud Drive sync - Package installer powered by micropip with offline wheel caching - Remote Jupyter kernel support (token, password, or SSH tunnel) [experimental] - Nine built-in color themes plus a theme editor - iPad multi-pane workspace Your code, notebooks, variables, and plots stay on your device. No account. No sign-in. No telemetry on your work. Works offline once Pyodide has initialized and packages are downloaded. Powered by Pyodide, Python in WebAssembly. Not affiliated with the Pyodide or Python project. Python is a trademark of the Python Software Foundation.

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.