Best IoT Development Tools in 2026
Updated
In short: Arm Keil MDK is ranked #1 of 15 as of 4 October 2026, ahead of Arduino IDE and ESP-IDF Extension for VS Code. The best-ranked option with a free plan is Arduino IDE. The lowest first paid tier on this page is Wokwi at €5.60/mo.
IoT development tools support work across devices, firmware and deployment targets, but their listed capabilities vary. This ranked best-of list compares deployment targets, device simulation and firmware debugging, as well as supported boards, languages and protocols. Free plans and paid starting prices add cost information to those technical considerations. Arm Keil MDK, Arduino IDE and ESP-IDF Extension for VS Code lead the entries; MPLAB X IDE, Particle Web IDE, PlatformIO IDE and Wokwi are also included. To narrow the options, match the listed boards, languages and protocols to your project, then compare debugging and simulation support for the development workflow you need.
15 IoT development tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Supported languages | |
|---|---|---|---|---|---|---|---|---|
| 1 | Arm Keil MDK | 7.4 | RecognisedAPIDocumented | $99/mo | Yes | — | — | View |
| 2 | Arduino IDE | 5.9 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 3 | ESP-IDF Extension for VS Code | 5.9 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 4 |  MPLAB X IDE | 5.9 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 5 | Particle Web IDE | 5.9 | RecognisedAPIDocumented | $299/mo | Yes | 299 /mo | C, C++ | View |
| 6 | PlatformIO IDE | 5.9 | RecognisedAPIDocumented | $20.75/mo | Yes | — | — | View |
| 7 | Wokwi | 5.8 | RecognisedAPIDocumented | €5.60/mo | Yes | — | Arduino (C/C++), MicroPython, CircuitPython, Rust | View |
| 8 | Eclipse 4diac | 5.6 | RecognisedAPIDocumented | — | Yes | — | C++; IEC 61499 function blocks | View |
| 9 | Digi IoT Device Simulator | 5.5 | RecognisedAPIDocumented | — | Yes | — | Python | View |
| 10 | Eclipse BaSyx | 5.5 | RecognisedAPIDocumented | — | Yes | — | Java, Python, TypeScript, Go, C#, Rust | View |
| 11 | Simplicity SDK | 5.5 | RecognisedAPIDocumented | — | Yes | — | C; C++ | View |
| 12 | Code Composer Studio | 5.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 13 | e² studio | 5.3 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 14 | Renesas Flexible Software Package | 5.2 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 15 | STM32CubeIDE | 5.2 | RecognisedAPIDocumented | — | Yes | — | — | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which IoT development tool is ranked first on Inferse?
Arm Keil MDK is ranked #1 of 15 with a score of 7.4. Arduino IDE is second and ESP-IDF Extension for VS Code third.
How many of these have a free plan?
7 of the 15 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Wokwi has the lowest first paid tier we found: €5.60/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.