Jayson vs HexFil

Jayson is a JSON viewer and editor for iPhone and iPad. Browse JSON as a structure, edit values, and save your changes back to the file. Whether you're inspecting an API response, checking a config file, or making a quick fix on the go, Jayson turns raw JSON into something you can actually read and change. BROWSE AND EDIT - Open JSON files stored on your device or in iCloud Drive. - Toggle between a structured table view and syntax highlighted text. - Add new values and keys, and save your changes back to the file. - Parse text or the contents of a URL from your clipboard into JSON. - Highlight a key from a child of an array to get a quick overview of your data. TABS, SPLITS, AND WINDOWS - Switch between files, or different objects in a single file, using tabs. - Compare JSON in a single file or across files using multiple splits. - Open multiple windows on the iPad. WORKS WITH SHORTCUTS Jayson integrates with Shortcuts, which comes in handy for debugging API calls, previewing JSON files, and building workflows around JSON. - Pass a response from Get Contents of URL to Jayson to see how it is structured. - Open JSON as a document you keep working on, or as a temporary preview. - Format JSON and hand the result to the next action, using spaces or tabs. FREE, WITH AN OPTIONAL UPGRADE Jayson's core functionality is free. Browsing, editing, saving, splits, Shortcuts, and working with up to two tabs at a time cost nothing. A one-time in-app purchase enables having more than two tabs open at once, switching between light and dark themes, and personalizing the app icon, accent color and type icons. One purchase, no subscription.

Ever wondered how to transmit big files with no internet and no USB drive? Picture this: You're in a secure environment. Air-gapped systems. No network. No removable media allowed. Yet you need to extract data - logs, firmware, configuration files - from a machine that can only display information on its screen. What do you do? HeExfil solves this impossible problem. Using nothing but your iPhone's camera, HeExfil captures hexadecimal dumps displayed on any screen and intelligently reconstructs them into complete, usable binary files. It's like data teleportation through light. What is HeExfil? HeExfil is an advanced optical data capture tool designed for security researchers, embedded engineers, forensic analysts, and anyone working with air-gapped or restricted systems. It turns your iPhone into a powerful hex capture device capable of extracting data from any display - no cables, no network, no physical contact required. Key Features Intelligent Camera Capture • Point your camera at any hex dump on a screen • Real-time OCR (Optical Character Recognition) with intelligent error correction • Automatically handles common OCR confusions (O to 0, I to 1, Cyrillic characters, etc.) • Live confidence scoring shows you capture quality in real-time • Adjustable region of interest (ROI) for precise targeting Smart File Assembly • Automatically reconstructs binary files from captured hex lines • Detects and tracks gaps in incomplete captures • Displays real-time completeness percentage • CRC-32 checksums for data integrity verification • Supports offset-based captures (captures can start from any memory location) Live Monitoring Dashboard • Real-time status updates (Idle, Capturing, Processing, Paused) • Confidence meter shows OCR accuracy • Unique line counter prevents duplicate captures • Adjustable sensitivity slider for different screen types • Duplicate line filtering ensures clean data Powerful File Management • Live Capture View: See your current capture session in real-time • Saved Files: Keep multiple capture sessions organized • Hex Dump Viewer: Review captured data line-by-line with monospaced formatting • Gap Detection: Instantly identify missing data ranges • Export Options: Share as .bin binary files or .hex text dumps Advanced Settings • Configurable bytes-per-line (8, 16, 32, or custom) • Duplicate filtering toggle • Auto-pause on low confidence • Region-of-interest customization Export and Share • Export reconstructed binaries directly to Files app • Share hex dumps as text for analysis • Copy to clipboard for quick transfers • Standard iOS share sheet integration Perfect For: • Security Researchers extracting firmware or memory dumps from restricted devices • Embedded Engineers capturing debug output from development boards • Forensic Analysts documenting hex data from isolated systems • IT Professionals working in air-gapped or SCIF environments • Hardware Hackers reverse-engineering protected devices • Anyone who needs to transfer data without physical or network access How It Works 1. Display your hex dump on any screen (terminal, oscilloscope, debug console, etc.) 2. Open HeExfil and point your camera at the display 3. Adjust the region of interest to frame your hex data 4. Capture automatically as HeExfil reads and validates each line 5. Monitor progress with real-time completeness tracking 6. Export your reconstructed binary file when complete No typing. No manual entry. No errors. Just pure optical data capture. Technical Highlights • Built with Swift and SwiftUI for native performance • Powered by Vision Framework for accurate text recognition • AVFoundation camera integration for real-time capture • Intelligent OCR fixups handle common misreads • Supports standard hex dump formats (offset plus hex bytes) • CRC-32 validation ensures data integrity • Works with monochrome or color displays