KozBon
iOS Universel / Utilitaires
KozBon gives users a way to see, understand, and broadcast Bonjour (mDNS / DNS-SD) services on your local network. Built for iPhone, iPad, Mac, and Apple Vision Pro.
Free, private, open source. No ads. No subscriptions. No telemetry.
DISCOVER
Live scan of every Bonjour service on your network, with a 150+ built-in service type library covering HTTP, AirPlay, AirDrop, AirPrint, HomeKit, Matter, Thread, IPP, SSH, SMB, Sonos, Spotify Connect, Chromecast, Plex, Jellyfin, mDNS-SD, and dozens more.
- Filter by category: Smart Home, Apple Devices, Media and Streaming, Printers and Scanners, Remote Access
- Apple devices identify themselves automatically, so Discover rows read "iPhone 16 Pro Max" instead of generic hostnames
- Inspect every detail: hostnames, IPv4 and IPv6 addresses, transport layer, and TXT records
- Long-press any field to copy it: service name, hostname, IP, full type, individual TXT keys and values
BROADCAST
Publish your own Bonjour services with custom port, domain, and TXT records. Edit TXT records on already-published services without restarting the broadcast.
- Define and persist custom service types using IANA-format identifiers
- Library tab to browse the full type catalog with category filters and search
- Best-practice footnotes on every form, so first-time broadcasters know what each field expects
INSIGHTS, POWERED BY APPLE INTELLIGENCE
KozBon's Insights feature uses Apple's on-device Foundation Models to explain what every service does, in your own language and at your chosen depth.
- Long-press any service for a streaming explanation: what it does, why devices advertise it, and how to interact with it from your device
- Conversational chat (called Explore on Mac and Vision Pro) grounded in your live network: discovered services, what you're broadcasting, and the full type library
- Mention any service type by name and the assistant pulls in authoritative catalog descriptions inline
- Scan-freshness aware: the assistant knows whether your data is fresh, stale, or still populating, and hedges accordingly
- "Hey Siri, scan for Bonjour services" or "list discovered services" via App Intents and Shortcuts
- Configurable detail level: Basic for newcomer-friendly explanations, Technical for protocol-level depth
PRIVATE BY DESIGN
Every Insights query runs on-device through Apple Foundation Models. Nothing ever leaves your device. There are no servers, no telemetry, and no analytics. KozBon is open source on GitHub, so you can read every line of code yourself.
PLATFORM POLISH
KozBon is built natively for every Apple platform it ships on, with treatment that matches each device.
- Liquid Glass on iOS 26+ and macOS 26+: translucent compose bars, tinted send buttons, floating capsules
- Pull-to-refresh on iPhone and iPad
- macOS menu-bar commands, keyboard shortcuts, and a dedicated Settings scene
- Vision Pro: native translucent surfaces, with gaze-driven hover effects on every interactive card
- Localized in English, Spanish, French, German, Japanese, and Simplified Chinese with locale-appropriate typography
ACCESSIBILITY
KozBon takes accessibility seriously. Every control has a descriptive VoiceOver label and a hint that explains what tapping it will do, including a three-way contextual hint on the Send button so VoiceOver explains exactly why a control is currently unavailable. Dynamic Type works throughout the app, with contextual caps in places where layout demands. Reduce Motion is respected on every animation.
WHO IT'S FOR
- Network and IT professionals trying to identify what's on a network
- Smart-home enthusiasts curious about HomeKit, Matter, and Thread
- Developers building or debugging Bonjour-enabled services
- Anyone wondering what those mystery devices on the Wi-Fi actually are
Quoi de neuf dans la dernière version ?
Major update: KozBon now has an on-device conversational assistant called Insights. Ask plain-English questions about your network, your broadcasts, and the full service-type library. Everything runs through Apple Foundation Models. Nothing leaves your device.
NEW
- Insights chat (called Chat on iPhone and iPad, Explore on Mac and Vision Pro), grounded in your live network and the full service-type library
- "Hey Siri, scan for Bonjour services" and "list discovered services" via App Intents and Shortcuts
- 41 new built-in service types including Matter, Thread border router, GoPro, Spotify Connect, Sonos, and more
- Library tab gains a category filter: Smart Home, Apple Devices, Media and Streaming, Printers and Scanners, Remote Access
- Apple devices identify themselves automatically. Discover rows now read "iPhone 16 Pro Max" instead of a generic hostname
- About section in Preferences shows the marketing version and build number for easy bug-reporting
POLISH
- Liquid Glass compose bar and tinted send button on iOS 26+ and macOS 26+
- Per-sentence haptic taps while the assistant streams responses
- Vertical message-bubble transitions and a tactile press animation on the recommended-prompt cards
- Large navigation title in chat that collapses on scroll, matching Mail and Messages
- Best-practices footnotes on the create-service-type, broadcast, and add-TXT-record forms
- Send button hit target now covers the full pill, fixing missed taps near the edges
- Detail level and response length collapsed into a single Preferences setting so the two can no longer drift out of sync
- Detail row renamed from "Device Name" to "Service Name", reflecting what the value actually represents
ACCESSIBILITY
- Three-way contextual hints on the chat Send button so VoiceOver explains exactly why it's unavailable
- Hover effects on suggestion cards for trackpad-equipped iPads and Vision Pro gaze input
- Dynamic Type caps where multi-line layouts demand
- Reduce Motion respected on every transition and animation
PERFORMANCE
- Pre-warmed model session at app launch so the first chat response starts streaming faster
- Optimized service-type lookups (O(N+M) dedup, memoized library) to keep tab switches snappy on service-rich networks
- Fixed a scanner accumulation bug that doubled NetServiceBrowser instances on every refresh
PRIVACY
KozBon stays on-device. No servers, no telemetry, no analytics. Open source on GitHub.
