Network topology scanner and visualizer — single binary, zero dependencies.

Real-time network discovery with an interactive D3.js topology map. Scan, detect services, and visualize your network from a single Go binary.

• TCP Connect Scanning — configurable port presets (quick / standard / full / custom)
• Service Detection — banner grabbing, HTTP probing, TLS certificate inspection
• Topology Visualization — interactive D3.js force-directed graph with subnet clustering
• Real-time Progress — SSE-powered live scan feed with ETA
• Dark / Light Theme — persisted preference
• Export / Import — JSON scan results
• Single Binary — Go 1.22+ with embedded frontend, no external dependencies

Download the latest release from Releases, then:

# Default: localhost:8080, auto-open browser
./netsight

# Custom address, no browser
./netsight -addr 0.0.0.0:9090 -open=false

Open http://localhost:8080 in your browser, add a target range, and start scanning.

git clone https://github.com/ersinkoc/NetSight.git
cd NetSight
go build -ldflags="-s -w" -o netsight .

Requires Go 1.22+. No external dependencies.

GOOS=linux   GOARCH=amd64 go build -ldflags="-s -w" -o netsight-linux-amd64 .
GOOS=darwin  GOARCH=arm64 go build -ldflags="-s -w" -o netsight-darwin-arm64 .
GOOS=windows GOARCH=amd64 go build -ldflags="-s -w" -o netsight-windows-amd64.exe .

All endpoints are under /api/v1.

{
  "targets": [
    {
      "range": "192.168.1.0/24",
      "gateway": "192.168.1.1",
      "label": "Office LAN"
    }
  ],
  "ports": { "preset": "standard" },
  "options": {
    "workers": 200,
    "timeout": "2s",
    "serviceDetect": true,
    "httpProbe": true,
    "tlsInspect": true
  }
}

Images are published to GHCR (GitHub Container Registry):

docker pull ghcr.io/ersinkoc/netsight:latest
docker run -p 8080:8080 ghcr.io/ersinkoc/netsight:latest

docker build -t netsight .
docker run -p 8080:8080 netsight

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