Description
mDNSShark is an open-source iPhone application created by a small team of engineers who wanted a simpler, clearer way to explore local networks. By tapping into protocols like Multicast DNS (mDNS), DNS-SD, and SSDP, mDNSShark quickly uncovers printers, media servers, IoT gadgets, and other active services on your home or office Wi-Fi - no convoluted setup required. If you've ever wondered what devices are really on your network, or how various services talk to each other, mDNSShark is designed to give you those answers efficiently and privately.
Simplicity is key: we've stripped away clutter so you can focus on scanning and understanding results. Every discovery operation runs right on your phone, with no external servers involved. We also do not collect or share any usage data - there's no telemetry, no user analytics, and certainly no hidden trackers. You remain fully in control, deciding if and when to allow local network access, which is all the app needs to function.
Built by Engineers, Open to Everyone:
mDNSShark was created by engineers who love transparent, lightweight solutions - yet it's also friendly for anyone curious about local network behavior. If you're a fellow engineer, a technologist, or just someone who enjoys problem-solving, you'll find plenty of ways to contribute. Newcomers can help refine the interface, add new features, or even propose deeper networking enhancements. Veterans can dive into advanced scanning logic, integrate emergent protocols, and optimize performance. We firmly believe that collectively, we can build an indispensable network tool for iPhone users everywhere.
Current Development:
mDNSShark is still in active development, with regular updates that refine performance, expand support for various network protocols, and polish the user experience. We welcome your ideas - whether it's a new device detection trick, an easier UI flow, or an innovative scanning feature. Our public repository provides a transparent view of current issues and ongoing discussions, letting you jump in wherever your skills or interests fit best.
Nouveautés (v1.3)
Version 1.3 brings meaningful improvements to TLS inspection reliability and overall stability.
The TLS inspection engine has been significantly hardened. The certificate cache now enforces a maximum size of 200 entries with automatic eviction, preventing memory and keychain growth during extended capture sessions. The bypass list logic has been corrected so that entries now match exact domain names or true subdomains rather than any suffix match, which eliminates false bypasses for domains that share a common ending. Drop count tracking is now thread-safe, resolving a race condition that could cause inaccurate counts when multiple TLS sessions closed simultaneously.
Packet capture reliability has been improved. A bundle identifier mismatch between the VPN tunnel extension and the main app configuration has been fixed, which in some cases prevented the tunnel from starting entirely and caused the packet list and analysis screen to show no data. The PCAP export writer received a patch that corrected a file corruption issue affecting certain capture sessions.
The app group settings bridge between the main app and the network extension now uses structured logging instead of a debug assertion when the shared container is unavailable, making diagnostic output more useful in production builds.
Several deprecated API calls have been updated to their modern equivalents across the codebase. Cross-file type resolution issues involving the packet model have been resolved, improving build reliability. The launch screen has been refactored for cleaner presentation on all supported device sizes.
Note: All information and features are provided for educational purposes.