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Head-to-head · Embedded Development IDEs

Arm Keil MDK vs MPLAB X IDE

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Arm Keil MDK #2 in Embedded Development IDEs 9.2/10 Free plan Free plan✓ 3 of 3 features Visit Arm Keil MDK
MPLAB X IDE #5 in Embedded Development IDEs 8.9/10 Free plan Free plan✓ 3 of 3 features Visit Microchip

Arm Keil MDK leads on 0 checks, MPLAB X IDE on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreArm Keil MDK · 9.2/10
  • Free planboth

Arm Keil MDK scores higher on our rubric for embedded development ides: 9.2 against 8.9 out of 10; our editors rank them #2 and #5.

On hardware probe support, Arm Keil MDK gives you Both where MPLAB X IDE offers Vendor.

Arm Keil MDK is the better fit for professional Arm development. MPLAB X IDE is the better fit for microchip MCU developers.

  • Arm Keil MDK fits best

    Professional Arm development

  • MPLAB X IDE fits best

    Microchip MCU developers

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Side by side

Feature Arm Keil MDK 9.2/10 Visit ↗ MPLAB X IDE 8.9/10 Visit ↗
At a glance
Editor score 9.2 8.9
Ranking #2 in Embedded Development IDEs #5 in Embedded Development IDEs
Best for Professional Arm development Microchip MCU developers
Pricing model Free plan + paid Free
Starting price — Free plan
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop, Browser extension Desktop
Platforms Web, Windows, macOS, Linux Windows, macOS, Linux
Support Tickets, Community, Docs Live chat, Tickets, Community, Docs
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Arm Keil MDK 3/3 · MPLAB X IDE 3/3
Integrated debugging ✓ ✓
RTOS support ✓ ✓
Integrated flashing ✓ ✓
Specs
Supported targets Arm Cortex-M, Armv8-M, SecurCore and legacy Arm microcontrollers; Ethos-U processors; Fast Models PIC, dsPIC, AVR, SAM, PIC32 and other Microchip MCU, DSC and MPU families
Hardware probe support Both Vendor
Desktop platforms Linux, macOS, Windows Windows, macOS, Linux
Our review
Pros
  • 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
  • Free desktop IDE for Windows, macOS, and Linux
  • Supports PIC, dsPIC, AVR, SAM, PIC32, and other Microchip families
  • Combines debugging, simulation, programming, and device packs
Cons
  • 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
  • Its target coverage is centered on Microchip devices
  • Hardware debugging uses Microchip programmer/debugger tools
  • Microchip recommends MPLAB Tools for VS Code for new and existing projects
Our verdict

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…

Read the review →

MPLAB X IDE is a free desktop environment for discovering, configuring, developing, debugging, and qualifying embedded designs. It is intended for firmware developers, electronics engineers, and teams building products with Microchip…

Read the review →
  1. Arm Keil MDKEmbedded Development IDEs 9.2Free plan
  2. MPLAB X IDEEmbedded Development IDEs 8.9Free plan

Strengths and trade-offs

  • Arm Keil MDK — 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

  • MPLAB X IDE — where it wins

    • Free desktop IDE for Windows, macOS, and Linux
    • Supports PIC, dsPIC, AVR, SAM, PIC32, and other Microchip families
    • Combines debugging, simulation, programming, and device packs

    Where it doesn't

    • Its target coverage is centered on Microchip devices
    • Hardware debugging uses Microchip programmer/debugger tools
    • Microchip recommends MPLAB Tools for VS Code for new and existing projects

More comparisons

All embedded development IDEs comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update