Arm Keil MDK
Arm Keil MDK: A broad Arm IDE suite covering coding, debugging, simulation, RTOS, middleware, and CI workflows. Ranked #2 of 29 in Embedded Development IDEs by our editors (9.2/10); pricing: Free plan; best for professional Arm development.
At a glance
- Editor score9.2 / 10
- PricingFree plan
- Best forProfessional Arm development
- Free planYes
- Integrated debuggingYes
- Facts checked20 Sep 2026
Where it wins
- Free Community tier for non-commercial Cortex-M development
- Integrated debugger, toolchains, RTOS support, middleware, and CI workflows
- Broad probe support including ULINK, CMSIS-DAP, ST-LINK, and J-Link
Where it doesn't
- Community use is limited to non-commercial projects
- Advanced virtualization and functional-safety tools require Professional
- The suite spans both current MDK v6 and legacy μVision/MDK v5 components
Our verdict on Arm Keil MDK
Arm Keil MDK is a software development suite for building, testing, and debugging embedded applications on Arm targets. It is aimed at embedded developers working with Cortex-M, Armv8-M, SecurCore, legacy Arm microcontrollers, Ethos-U processors, and Fast Models. Keil Studio Visual Studio Code extensions, Keil μVision, command-line tools, CMSIS-Packs, integrated debugging, and multiple toolchains give teams several ways to manage development. The Community edition also provides a path for students, hobbyists, makers, and non-commercial projects.
The plan structure separates non-commercial development from commercial engineering work. Community includes Keil Studio, Keil μVision, and Cortex-M device support, while Essential adds commercial development, all Cortex-M cores, VS Code extensions, and API access. Professional includes the Essential features plus Arm Virtual Hardware, the Arm Compiler for Embedded FuSa, and legacy tools. This makes the lower tier suitable for learning and personal projects, while commercial teams need a paid edition and teams with virtualization or functional-safety requirements need Professional.
Its main strength is breadth across the embedded workflow and Arm ecosystem. Developers can combine Arm, GCC, and LLVM toolchains with CMSIS-Packs, RTX5, CMSIS-FreeRTOS, networking, USB, file-system middleware, integrated flashing, and command-line continuous-integration workflows. Debugging and probe compatibility cover ULINK, CMSIS-DAP, ST-LINK, and J-Link, while Arm Virtual Hardware adds simulation models in the Professional tier. That breadth suits teams standardizing on Arm development across tools and targets. It is less suitable for strictly non-Arm work, and the split between current MDK v6 tools and legacy μVision/MDK v5 components may require teams to choose their workflow carefully.
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Arm Keil MDK pricing
All 3 Arm Keil MDK plans and prices →
Arm Keil MDK fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Supported targets | Arm Cortex-M, Armv8-M, SecurCore and legacy Arm microcontrollers; Ethos-U processors; Fast Models |
| Integrated debugging | Yes |
| Hardware probe support | Both |
| RTOS support | Yes |
| Integrated flashing | Yes |
| Desktop platforms | Linux, macOS, Windows |
| Deployment | Cloud, Desktop, Browser extension |
| Platforms | Web, Windows, macOS, Linux |
| Compliance & security | 2FA |
| Support | Tickets, Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 11 integrations: CMSIS-Packs, Arm Virtual Hardware, Arm Compiler for Embedded, Arm GNU Toolchain, LLVM Embedded Toolchain, Keil RTX5 … |
| Pricing | Free plan (source) |
| Website | keil.arm.com |
| Facts checked | 20 Sep 2026 |
Arm Keil MDK integrations
Arm Keil MDK lists 11 integrations on its own site.
- CMSIS-Packs
- Arm Virtual Hardware
- Arm Compiler for Embedded
- Arm GNU Toolchain
- LLVM Embedded Toolchain
- Keil RTX5
- CMSIS-FreeRTOS
- ULINK
- CMSIS-DAP
- ST-LINK
- J-Link
Alternatives to Arm Keil MDK
- PlatformIO IDEA free, cross-platform IDE covering build, flash, debug, test, and analysis.9.3
- Code Composer StudioA free, TI-focused IDE with integrated build, debug, configuration, flashing and profiling.9.1
- STM32CubeIDEA free STM32-focused IDE with configuration, code generation, debugging, and programming tools.9.0
See all Arm Keil MDK alternatives →
Arm Keil MDK vs the competition
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Also Ranked In
Arm Keil MDK is ranked in 5 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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