Textastic Code Editor vs JS Shell

Textastic is a comprehensive and versatile text and code editor for iPad and iPhone. It supports syntax highlighting for more than 80 programming and markup languages. Connect to SFTP, FTP, and WebDAV servers or to your Dropbox account. Use the built-in SSH terminal to work directly on your server. Features: - Syntax highlighting for more than 80 languages, including HTML, JavaScript, CSS, C++, Swift, Objective-C, Rust, XML, Markdown, PHP, Perl, Python, Ruby, Lua, YAML, JSON, SQL, shell scripts, and many more (full list available on the website) - Compatible with Sublime Text 3 and TextMate 1 syntax definitions and themes - Code completion for HTML, CSS, JavaScript, C, Objective-C, and PHP - SFTP (SSH), FTP, FTPS (FTP over SSL), WebDAV, and Dropbox clients - SSH terminal connections - Code formatter for HTML, CSS, JavaScript, and JSON - Git repositories from the Git client app Working Copy can be opened as external folders in Textastic - Emmet support - JavaScript console - iCloud Drive file synchronization - WebDAV server for easy file transfer between Textastic and your Mac or PC over Wi-Fi - Symbol list for quick navigation within a file - Full support for external keyboards, trackpads, and mice - Configurable keyboard shortcuts - Additional keys above the virtual keyboard for frequently used programming characters - Cursor navigation wheel for easy text selection - Move the cursor using swipe gestures - Split View and Slide Over multitasking on iPad - Open multiple files in tabs - Multiple windows on iPadOS - Dark Mode support - Support for common text encodings such as UTF-8, UTF-16, and ISO-8859-1 - Support for different tab widths and soft tabs (spaces instead of tabs) - Custom fonts - Find and Replace, including regular expression search - Find in multiple files - File information such as character and word counts - Local and remote web preview for HTML and Markdown files Pricing: Textastic requires a monthly or yearly subscription or a one-time purchase. Each subscription includes a 7-day free trial with full access to all features. Privacy Policy: https://www.textasticapp.com/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

JS Shell is a pocket-sized developer console that lets you write, run, and test web code (HTML, CSS, JavaScript) directly on iOS and macOS. No Xcode, no laptop, no remote server. Paste a page in, tap run, and it loads in a real WKWebView served from a local HTTP origin. A real secure-context origin on iOS, so modern web APIs — from WebRTC to Geolocation — behave the way they should. KEY FEATURES Local HTTP server. An in-process server bound to the loopback interface. Provides a real secure-context origin so modern Web APIs work out of the box. Not reachable from outside the device. JavaScript REPL. A full JavaScript runtime backed by JavaScriptCore. Type js to enter the REPL. console.log, fetch, setTimeout, setInterval, Promises, and async await are all available. Real Promises, real microtasks, real JSON parsing, real URL parsing. Geolocation support. Test navigator.geolocation on a real iOS device. Permissions are handled by the system, just like Safari. Useful for validating location-based web features without deploying to a server. Persistent file system. Files you paste live in your Documents directory and survive app restarts. Each downloaded package gets its own directory. iCloud backup picks them up like any other app data. SQLite key-value store. A real B-tree on disk via SQLite. Read and write from your pages with same-origin fetch. No CORS configuration required. curl. A subset of curl built on URLSession. The flags X, H, d, i, I, o, A, m, v are supported. Pretty-prints JSON responses and saves binary blobs to the virtual filesystem. Archive extraction. In-process tar, tar.gz, tgz, gz, and zip extraction. No shelling out. Download a release tarball with curl, extract it, and run it immediately. Voice commands. Tap the mic, speak a command. Apple Speech framework converts speech to text. Auto-submits on detected silence. Voice commands are saved to the scripts list for one-tap re-run. Saved scripts. Save any sequence of commands as a named script. One-tap to re-run later. Voice-recognized commands are auto-saved to the scripts list for instant replay. Mac Catalyst support. Runs natively on macOS as a Mac Catalyst app. Multi-window, resizable, fullscreen-capable. The same code that runs on your iPhone runs on your Mac. DESIGNED FOR DEVELOPERS JS Shell is a tool for people who want to test web code on a real iOS device without installing Xcode, syncing files, or setting up a tunnel. It is especially useful for: Testing geolocation, camera, and microphone permission flows on iOS. Validating fetch, CORS, and cookie behavior on a real iPhone. Building small offline web tools that need persistent state. Running JavaScript snippets without opening Safari Inspector. Debugging mobile rendering edge cases on the device itself. PRIVACY JS Shell does not collect any user data. There is no telemetry, no ads, no analytics, no third-party SDKs, no remote configuration. Everything you type, paste, or download stays on your device. The local HTTP server only listens on the loopback interface and is not reachable from any network. The app forwards camera, microphone, speech recognition, and location permissions to web pages you load, exactly like Safari does on macOS. The first time a page tries to use them, iOS shows the standard system permission prompt. The first time a page tries to use them, iOS shows the standard system permission prompt.