Arm Keil MDK vs PlatformIO IDE
Arm Keil MDK
keil.arm.com
PlatformIO IDE
platformio.orgSide by side
| Figure | Arm Keil MDK | PlatformIO IDE |
|---|---|---|
| Price from | $99/mo | $249/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | — | Yes |
| Plans published | 8 | 4 |
| Spec score · Embedded Systems Toolchains | 9.5 (#1) | 8.1 (#9) |
| Spec score · Embedded Development IDEs | 9.5 (#1) | 7.8 (#9) |
| Spec score · C++ IDEs | 9.5 (#1) | 7.9 (#12) |
| Spec score · IoT Development Tools | 9.4 (#1) | 8.0 (#5) |
| Debugging | The VS Code integration supports pyOCD with ST-Link, CMSIS-DAP and ULINK, plus J-Link Server. | The IDE page says its unified debugger supports more than 250 embedded boards with zero configuration. |
| Purpose | Keil MDK simplifies embedded software development for Cortex-M and Ethos-U processors through CLI, IDE, or continuous integration workflows. | PlatformIO is a cross-platform, cross-architecture tool for embedded systems engineers and software developers building applications for embedded products. |
| Support | Keil MDK support offers support cases, a community forum, documentation, and learning videos. | The free Community support option includes round-the-clock access to community forums and documentation; paid Business support lists online ticket submission and a response time under 24 business hours. |
Plans
Arm Keil MDK
- EssentialPriced on request
- ProfessionalPriced on request
- ProfessionalPriced on request
- CommunityFree
- Keil MDK v6 Essential82.39 CHF a month
- Keil MDK v6 Essential$99 a month
- Keil MDK v6 Professional165.60 CHF a month
- Keil MDK v6 Professional$199 a month
PlatformIO IDE
- CommunityFree
- PlatformIO IDEFree
- Business$249 a month
- EnterprisePriced on request
In their own words
Arm Keil MDK
Arm Keil MDK is a toolchain for embedded software targeting Cortex-M and Ethos-U processors. MDK v6 supports command-line, IDE, and continuous-integration workflows across major operating systems. It includes Keil Studio extensions for Visual Studio Code, Keil μVision, Arm Compiler for Embedded, and Arm Fixed Virtual Platform models. Software packs add device and board support, middleware, components, code templates, and example projects independently of the toolchain. Keil Studio supports CMSIS workflows with an integrated debugger and extensions for creating, building, and testing embedded applications. Listed integrations include CMSIS-FreeRTOS, Keil RTX5, MDK-Middleware, IoT clients, CMSIS-DAP, ULink, and third-party debug adapters. Community is for non-commercial use. The listed MDK v6 Essential plan costs $99 a month per license; Professional costs $199 a month per license and adds Arm Virtual Hardware, functional-safety compiler tools, and legacy tools including Arm Compiler 5. Keil μVision is available only for Windows hosts.
PlatformIO IDE
PlatformIO IDE has no write-up on Specifiction yet; its figures are above.