ByteProbe
BLE Inspector & Developer Tool for Android
A vendor-neutral Bluetooth LE inspector for embedded developers, IoT engineers, and security researchers. Scan advertisements, browse GATT services, read and write characteristics, decode standard values, and watch live traffic — all from your phone.
Features
Advertisement Scanner
Live list of nearby BLE devices with name, MAC, RSSI, connectable flag, and signal-strength histogram.
GATT Explorer
Full service/characteristic tree with properties (READ, WRITE, NOTIFY, INDICATE). Tap to inspect any characteristic.
Auto Decoders
Built-in decoders for Battery, Heart Rate, Device Info, Environmental Sensing (temp / humidity / pressure), and Nordic UART.
Read / Write / Notify
Read characteristics, write arbitrary hex payloads, subscribe to notifications and indications.
Live Traffic Log
Every GATT event — connect, MTU, discovery, read, write, notify — with direction arrows, hex payload, and status. Pause and clear on demand.
Saved Device Profiles
Bookmark devices and snapshot their GATT tree for offline reference. Walk back onto a test bench and remember every service.
Session Recording
Every connect, discovery, read, write, and notify event is captured in a session log you can revisit.
Instrument-Panel UI
Catppuccin Mocha dark theme tuned for bench work. Monospace payloads, colored property badges, scope-style signal histogram.
Privacy First
No account. No telemetry. All scan data and profiles stored locally on your device.
Decoders Included
| Service | Decoded Characteristics |
|---|---|
| Battery (0x180F) | Battery Level (%) |
| Heart Rate (0x180D) | HR Measurement (bpm + flags) |
| Device Information (0x180A) | Manufacturer, Model, Serial, FW/HW/SW version |
| Environmental Sensing (0x181A) | Temperature, Humidity, Pressure |
| Nordic UART (6E40…) | ASCII text on RX / TX characteristics |
Screenshots
Scanner
GATT Explorer
Traffic Log
Sessions
Download
Version: 1.1.0
Size: ~12 MB
Requires: Android 8.0+ (API 26), Bluetooth LE
Price: Free (ad-supported)
Google Play listing coming soon.
Direct APK download:
Download APKSecurity & Privacy
- ✓ No account required
- ✓ No analytics, no tracking, no telemetry
- ✓ All scan results, saved profiles, and sessions stored locally
- ✓ HTTPS-only network policy (cleartext disabled)
- ✓ ProGuard/R8 obfuscation in release builds
- ✓ Minimal permission model — Bluetooth + coarse location (Android 11 and below, required for BLE scanning)
Developer Tool
ByteProbe is a diagnostic and development tool. You should only connect to devices you own or have explicit permission to inspect. Writing to characteristics on devices you do not own may cause unintended behavior.