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BleuIO Explorer

A free, browser-based Bluetooth LE tool. Scan for devices, connect and explore GATT services, read/write characteristics, and configure custom advertising — no SDK required.

BleuIO Explorer
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Unlock BleuIO Explorer

Get free access to this powerful Bluetooth LE development tool by joining our community.

  • Scan for nearby Bluetooth LE devices
  • Connect and explore GATT services
  • Read, write, and subscribe to characteristics
  • Configure custom advertising packets
  • Real-time AT command logging

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Best on Desktop

BleuIO Explorer works best on a desktop browser with Web Serial API support (Chrome, Edge, or Opera) to connect to the BleuIO USB dongle.

Chrome Edge Opera
v1.0.0

Version 1.0.0

January 21, 2026
  • Hybrid combobox for Company ID with search and browse functionality
  • Hybrid combobox for Appearance values with category grouping
  • Official Bluetooth SIG data sources (3,900+ companies, 340+ appearances)
  • Popular companies quick-select on focus
Beta

This tool is in active development. Some features may not work as expected.

BleuIO Pro USB Dongle

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Get your BleuIO USB dongle to start exploring Bluetooth LE devices. Perfect for learning, prototyping, and development — works instantly with no SDK required!

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1. Open Port 2. Verify Dongle 3. Configure 4. Ready
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Connection Failed
Tips: Close other apps using the port • Reconnect the dongle • Select the correct port
Product
Firmware
Chip
Role
MAC Address
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Scanning for devices...

Looking for nearby Bluetooth LE devices.

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No connected devices

Scan for devices and connect to see them here.

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Advertisement Type

Advertisement Data

Note: Advertising flags (LE General Discoverable, BR/EDR Not Supported) are automatically set by the BleuIO dongle firmware.
Example: "My BLE Device" or "Sensor-01"
Displayed when scanning. Max ~20 chars recommended.
Company ID + Custom Payload → Auto-formatted as AD Type 0xFF
Loading company database...
Preview:
Search for a company (Apple, Nordic, etc.) or enter a 4-digit hex ID. Use FFFF for testing.
Search: "Battery", "Heart", "Environmental" or enter UUID like "180F"
Advertises that this device offers this service. Helps with filtering during scan.

Advertising Interval

Raw Advertisement Data (Advanced)

Format: Length:Type:Data for each AD element. Leave empty to use fields above.
Example: 02:01:06:09:09:4D:79:44:65:76:69:63:65 = Flags (06) + Name "MyDevice". When set, this overrides all fields above.

Packet Size

Advertising Data / bytes (+3 flags)
Scan Response /31 bytes

📋 AT Command Log