Free Tool
BleuIO Explorer
A browser-based Bluetooth LE development tool. Scan for nearby devices, connect and explore GATT services, read/write characteristics, and configure custom advertising — no SDK required.
Scan & connect to devices
Explore GATT services
Works with BleuIO USB dongle
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.
⚠️
Browser Not Supported
Web Serial API requires Chrome 89+, Edge 89+, or Opera 75+. Please use a supported browser.
Web Serial API requires Chrome 89+, Edge 89+, or Opera 75+. Please use a supported browser.
Need a BleuIO Dongle?
Get your BleuIO USB dongle to start exploring Bluetooth LE devices. Perfect for learning, prototyping, and development — works instantly with no SDK required!
🎯 Want another dongle for dual-device testing?
Get BleuIO →
1. Open Port
2. Verify Dongle
3. Configure
4. Ready
Connection Failed
Tips: Close other apps using the port • Reconnect the dongle • Select the correct port
Product
Firmware
Chip
Role
MAC Address
Connected
Beacon/Non-connectable
📡
🔍
Scanning for devices...
Looking for nearby Bluetooth LE devices.
Connected
🔗
No connected devices
Scan for devices and connect to see them here.
Exploring:
▶
UUID:
UUID:
Read
Write
Write No Resp
Notify
Indicate
📊
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"
Member
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
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