NetJolt

Spindlecode, LLC

About this app

NetJolt is a comprehensive network diagnostics and monitoring toolkit that puts professional-grade tools in your pocket. Run all diagnostics locally on
your device with zero data collection — your network data stays yours.

SPEED TESTING
Measure your download and upload speeds with dual-gauge visualization. Test against multiple server providers to get accurate, real-world results.

WIFI ANALYSIS
Monitor your WiFi signal strength in real-time with precise dBm readings. View channel, frequency, link speed, and channel width details. Scan nearby networks to find the least congested channel and optimize your setup.

NETWORK DIAGNOSTICS
A full suite of professional tools at your fingertips:
• Ping — Test latency and packet loss to any host
• Traceroute — Map the path your traffic takes across the internet
• DNS Lookup — Query DNS records for any domain
• Port Check — Test if specific ports are open on a host
• Whois — Look up domain registration information
• ARP Table — View devices on your local network
• Connection List — See all active network connections

DEVICE DISCOVERY
Automatically find devices on your local network. Identify what's connected and get details about each device.

WAKE-ON-LAN
Send magic packets to wake up computers and devices on your network remotely.

CONNECTIVITY MONITORING
Track your connection status, latency, and DNS health continuously. Get notified when conditions change with background monitoring via persistent notification.

HOME SCREEN WIDGET
Keep an eye on your network at a glance without opening the app.

PRIVACY FIRST
NetJolt runs everything locally on your device. No accounts, no cloud services, no analytics, no tracking. Your network data never leaves your device.

Designed for network administrators, IT professionals, developers, and anyone
who wants to understand and troubleshoot their network connection.

What’s new

• Android 16 (API 36) support.
• Device Discovery finds more devices (adds SSDP/UPnP + ping sweep) and now lists only identified devices, matching the desktop app.
• New Speed Test debug log: turn it on before a run and it attaches to Share Results.
• Reliability & privacy fixes (scan cancel, share crash, log redaction).