Arm Keil MDK vs StackBlitz
Arm Keil MDK
keil.arm.com
StackBlitz
stackblitz.comSide by side
| Figure | Arm Keil MDK | StackBlitz |
|---|---|---|
| Price from | $99/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 8 | 8 |
| Spec score · IDE Software | 9.4 (#1) | 8.7 (#8) |
| Company headquarters | Arm lists its global headquarters at 110 Fulbourn Road, Cambridge, UK, CB1 9NJ. | G2 lists StackBlitz headquarters in San Francisco, United States. |
| Integrations | MDK v6 feature listings include CMSIS-FreeRTOS, Keil RTX5, MDK-Middleware, IoT clients, CMSIS-DAP, ULink, and third-party debug adapter support. | Its integrations page lists a Figma plugin, a Storybook addon, and a browser userscript that opens GitHub projects in Codeflow. |
| Support | Keil MDK support offers support cases, a community forum, documentation, and learning videos. | The site links to StackBlitz Community, documentation, and Enterprise Sales for support and contact. |
| What it does | Keil MDK is Arm’s toolchain for creating, building and debugging software for Cortex-M and Ethos-U microcontrollers and processors. | StackBlitz is a browser-based full-stack JavaScript IDE powered by WebContainers, which run Node.js inside the browser. |
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
StackBlitz
- Personal+Price not published
- Enterprise ServerPrice not published
- PersonalFree
- PersonalFree
- Pro$25 a month
- Teams$60 a month
- EnterprisePriced on request
- Enterprise & Self-hostedPriced 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.
StackBlitz
StackBlitz is a browser-based full-stack web IDE for the JavaScript ecosystem. Its WebContainers run Node.js development environments inside a browser tab, and the service lists millisecond startup and offline work. StackBlitz presents rapid prototyping and coding interviews as use cases. Integrations include a Figma plugin, Storybook addon, and userscript for opening GitHub projects in Codeflow. Viewing and editing projects needs no account, but saving or collaborating requires GitHub. WebContainers depend on SharedArrayBuffer and cross-origin isolation. Enterprise options connect GitHub Enterprise, GitLab, Bitbucket, private npm registries, JFrog Artifactory, and Sonatype Nexus. Enterprise code runs in an isolated browser sandbox with SAML2 single sign-on, an admin portal, and self-hosting on bare metal or in a VPC through Kubernetes. Plans include free access and a 14-day trial; listed plan prices are not provided.