Connection Debugger
Connect to MQTT, HTTP, TCP or UDP devices with plain or TLS. Instantly see connection status, errors and handshake details.
◎ THE IOT TESTING PLATFORMTest IoT devices.
Test IoT devices.
Build with confidence.
From your first connection to reliable firmware, understand what your devices are doing. Test MQTT, HTTP, TCP and UDP in one workspace, inspect every message, and find connection issues faster.
✓ Free plan available✓ Set up in minutes✓ Works with any device
YOUR DEVICE WORKSPACEProduct preview
Devices › Tracker-01 › Live Console● Online
Device traffic, clearly understood.
| Time | Direction | Protocol | Topic / Endpoint | Length | Data |
|---|---|---|---|---|---|
| 10:42:21 | IN | MQTT | sensors/temperature | 42 | Temperature received |
| 10:42:22 | IN | HTTP | /telemetry | 312 | Telemetry received |
| 10:42:23 | OUT | MQTT | devices/status | 28 | Acknowledgement |
| 10:42:25 | IN | TCP | device stream | 64 | Frame received |
✓
Connected. Secure. Ready to inspect.
See messages and connection details together.
Works with any device
Test real devices or simulators.
No vendor lock-in.
Multiple protocols
MQTT, HTTP, TCP, UDP
with plain or TLS.
Inspect every byte
Live view of every frame,
handshake and payload.
Clear connection insights
Connection insights that help
you solve problems yourself.
Powerful tools for IoT developers
Spend less time guessing and more time building devices that work.
Live Console
See all device traffic in real time with color-coded direction, topics and payloads. Switch between Hex, ASCII, JSON or raw view.
Protocol Inspector
Deep inspection for MQTT, HTTP, TCP and UDP. Parse headers, payloads and structures with human-readable views.
TLS Inspector
Inspect the complete TLS handshake, certificates and negotiated ciphers. Debug TLS issues with detailed logs.
Device Simulator
Simulate MQTT, HTTP, TCP or UDP devices to test your applications. Customize payloads, intervals and behaviors.
ACK & Command Tester
Send commands to devices and verify acknowledgements. Create custom ACK rules and validation logic.
Command Queue
Queue, schedule and replay commands. Perfect for testing scenarios and automation.
Storage & Retention
All device traffic is stored for later inspection. Search, filter and export logs with flexible retention controls.
How it works
Get up and running in minutes. A straightforward path from first connection to clearer answers.
Add a device
Choose a protocol and add your device with a few details.
Copy connection details
Get connection parameters for MQTT, HTTP, TCP or UDP (with plain or TLS).
Connect your hardware
Point your device at its connection endpoint and start understanding its traffic.
Inspect and debug instantly
View every frame, handshake and payload in real time.
BUILT FOR YOUR WORKFLOW
From first prototype to a dependable integration.
A shared view of device behavior for the people bringing connected products to life.
Find the issue before it ships.
Inspect payloads, acknowledgements and reconnects while you develop. See how your firmware behaves beyond the happy path.
Explore debugging tools →Make every message easier to understand.
Compare raw bytes with readable protocol details. Validate what your device sends and how your integration responds.
Explore protocol inspection →Keep your testing in one workspace.
Organize devices, review connection history and manage storage with a consistent workflow across protocols.
See how to get started →ROOM TO GROW
A plan for your next stage of testing.
Start with a few devices. Expand your workspace as your project grows.
Free
For exploring and testing your first devices.
₹0 / month
- ✓ 3 devices
- ✓ HTTP and MQTT with TLS
- ✓ 250 MB account storage
- ✓ 3-day default retention
- ✓ 50 commands per day
Pro
For developers and teams building connected products.
₹999 / month
- ✓ 25 devices
- ✓ MQTT, HTTP, TCP and UDP
- ✓ 10 GB account storage
- ✓ 30-day default retention
- ✓ Custom ACK rules and data export
Business
For larger fleets and more demanding test workflows.
Custom
- ✓ Up to 200 devices
- ✓ All supported protocols
- ✓ 200 GB account storage
- ✓ 180-day default retention
- ✓ Custom domains and advanced certificate options
Frequently asked questions
Everything you need to know about IoT Playground.
What protocols are supported?
MQTT, HTTP, TCP and UDP, with plain or TLS connections where supported. Each device gets its own connection details.
Can I create custom ACK rules?
Yes. Match incoming payloads and define replies in hex, text or JSON on supported plans.
Do you support TLS connections?
Yes. Inspect TLS versions, cipher suites and certificate details to troubleshoot secure connections.
Can I use my own domain or IP?
Custom domains and endpoint options are available on eligible plans.
How much device data is stored?
Storage and retention depend on your plan. Device-level limits let you control how much traffic is retained.
Do you offer a free plan?
Yes. A free tier lets you start testing before upgrading for additional devices and tools.
Build with a clearer view of your devices.
Bring your hardware. Understand its behavior. Move your project forward.
Get started →Free plan available