Arm Keil MDK vs IntelliJ IDEA
Arm Keil MDK
keil.arm.com
IntelliJ IDEA
jetbrains.comSide by side
| Figure | Arm Keil MDK | IntelliJ IDEA |
|---|---|---|
| Price from | $99/mo | $8.33/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Plans published | 8 | 5 |
| Spec score · IDE Software | 9.4 (#1) | 9.1 (#4) |
| Maker legal name | The UK corporate register identifies ARM LIMITED, company number 02557590, incorporated on 12 November 1990. | Crunchbase identifies the legal company name as JetBrains s.r.o. |
| System requirements | Minimum requirements are a 1 GHz 64-bit x86 or AArch64 CPU, 1 GB RAM and 2 GB free disk; recommended is 2 GHz, 4 GB RAM and 5 GB disk. | The 2026.2 guide specifies a four-core x86_64 or arm64 CPU and 8 GB total RAM with 3 GB available to IDE processes. |
| Version control | Its Source Control view integrates Git and creates a workspace .gitignore file. | It integrates with Git, Mercurial, Perforce, and Subversion, and supports processing GitHub pull requests in the IDE. |
| What it does | Keil MDK is Arm’s toolchain for creating, building and debugging software for Cortex-M and Ethos-U microcontrollers and processors. | IntelliJ IDEA is an integrated development environment for Java, Kotlin, Groovy and Scala that combines editing, debugging, testing, code completion, static analysis and refactoring. |
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
IntelliJ IDEA
- Free feature setFree
- IntelliJ IDEA coreFree
- IntelliJ IDEA Ultimate individual$19.90 a month
- IntelliJ IDEA Ultimate subscription$100 a year
- IntelliJ IDEA Ultimate annual$199 a year
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.
IntelliJ IDEA
IntelliJ IDEA is an IDE for professional Java and Kotlin development, available on Windows, macOS, and Linux. It offers context-aware completion, static analysis, and automated refactoring. The JVM debugger includes breakpoints, variable inspection, expression evaluation, and step-by-step execution. Gradle and Maven integrations cover building, packaging, testing, and deployment, while version-control support includes Git, Mercurial, Perforce, and Subversion. Users can process GitHub pull requests in the IDE, and plugins from JetBrains Marketplace add support for other languages, frameworks, and technologies. Core Java and Kotlin functionality remains free after the included 30-day Ultimate trial ends. The Ultimate subscription adds advanced tools and integrations and costs $100.00 for the first year, $199.00 for the second year, and $159.00 per year from the third year onward. Listed minimum hardware is a 4-core x86_64 or arm64 CPU, 8 GB total RAM, and 10 GB of disk space. Users can choose in IDE settings whether to share anonymous usage data.