Feature reference

Discovery — CIDR/range, ping, TCP fallback, ARP, OUI vendor (3-tier), mDNS, banners

CIDR + range input — 10.0.0.0/24, 192.168.1.50-192.168.1.200, or comma-separated multiple ranges (10.0.0.0/24, 172.16.0.0/24)
Auto-detected default subnet from the active interface (en0/en1)
Concurrent ping (32 parallel) using /sbin/ping
TCP fallback probe (445/80/443/22/3389) for hosts that block ICMP — Windows Firewall, etc.
Reverse DNS with 1-second timeout (race-cancelable)
MAC address via arp -an parsing, subject to network reachability and macOS privacy restrictions
Vendor lookup with the bundled IEEE OUI registry — MA-L (24-bit), MA-M (28-bit), and MA-S (36-bit) for sub-block matching; local/randomized MACs are not assigned a manufacturer
mDNS / Bonjour service discovery (_airplay, _homekit, _smb, _ssh, _ipp, _googlecast, …)
HTTP / HTTPS title and SSH banner fetch on demand (port-scan banner enrichment)

Actions — port scanner, context menu, Wake-on-LAN, multi-select

Port scanner — common-ports preset, web preset, custom ranges (8000-8100), bounded concurrency to avoid connection storms
Right-click context menu per host: HTTP / HTTPS / SSH / VNC / RDP / SMB / AFP / Telnet / Ping in Terminal / Refresh / Wake-on-LAN / Copy IP/Hostname/MAC / Remove from list
Wake-on-LAN — UDP magic packet, single host or bulk; successful sending does not confirm the device woke up
⌘C copies selected IP(s) from the table
Multi-select for bulk actions

Inspector — open on demand, ping monitor, action grid

Select a host and choose Device Details (⌘⌥I). Details open in a sheet in compact windows and a resizable panel in wide windows.

Header — device-type icon, IP, vendor status and estimated device type
Inline label editor with #tag syntax (searchable, MAC-anchored, persisted)
Full info: hostname, MAC, anchor, open ports (with service names), service title, RTT, TTL, NetBIOS name & workgroup (Standard / Deep)
mDNS services list
Live ping monitor — sparkline + avg / min / max / loss stats (1s interval, 60-sample buffer)
Action grid grouped into Connect / Tools / Copy

v1.1 additions — scan profiles, interface picker, auto-rescan, snapshot diff, search highlighting, warnings hub

Scan profiles — Quick (ping only) / Standard (+ TCP fallback) / Deep (+ auto port scan & banner fetch on alive hosts)
Network interface picker — choose en0 / en1 / utun (VPN) from a menu; subnet auto-fills
Auto-rescan — off / 30 s / 1 m / 5 m / 15 m, kicks in after the previous scan finishes
Change detection / snapshot diff — load a previous .ipscan.json as comparison baseline; per-row badges (+ new, ~ changed, − missing) plus a summary popover listing missing hosts
Permission/failure surfacing — status-bar warnings hub (ARP table empty, banner fetch failures) with a click-through detail popover
Search match highlighting — query substrings highlighted in IP / Hostname / MAC / Vendor / Title / Label cells
Resizable inspector — drag the divider; width persisted

v1.2 additions — file import, CLI binary, NetBIOS, subnet calculator, update check, TTL, new export formats

File import — feed a .txt / .csv of IPs, CIDRs, or ranges instead of typing into the range field; invalid lines reported, duplicates deduped
ipscanner CLI — headless binary inside the app bundle for cron / launchd / scripts (see Command-line interface)
NetBIOS name fetcher — Standard / Deep profiles pull Windows computer name + workgroup via UDP 137 when DNS is stale
Subnet calculator popover — Tools menu; /N → network, broadcast, host range, count, dotted mask, wildcard
Signed in-app updates — Sparkle checks the GitHub-hosted feed daily when enabled; manual checks are available in Help and Settings. Review release notes and choose installation in the native update window.
TTL column — parsed from /sbin/ping, optional column with an OS hint tooltip
IP:Port export and Text Report export — flat ip:port lines for piping into Nmap / firewalls, and a padded human-readable report for tickets

Persistence & I/O

Saved ranges with friendly names (Home, Office VLAN) — sidebar with rename support
Snapshot save/load — .ipscan.json, ⌘O / ⌘⌥S
Export as CSV / JSON / IP:Port list / Text Report / clipboard
Per-host labels persisted in UserDefaults

UX — split view, app menus, appearance picker, status bar

macOS-native: NavigationSplitView (sidebar + detail + inspector), ContentUnavailableView, App-menu commands, custom About panel, GitHub Help menu
Appearance picker in View → Appearance (System / Light / Dark)
Live updates — alive hosts stream into the table as they're discovered
Status bar — progress, alive count, filter match, elapsed time, warnings, diff summary
Distributed outside the App Store with Developer ID signing and notarization

Help & feedback — native help, Settings and issue reporting

Help explains scan profiles, device information, snapshots, shortcuts and troubleshooting.
Settings controls the default scan profile, appearance and automatic update checks.
Feedback previews a bug or feature request before submitting it through Cloudflare to a public GitHub issue. A failed submission retains the draft.
Signed updates and the refreshed radar icon ship with 1.3.0; update distribution details.

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