Click the appropriate link. Microchip may require you to log in with a free MyMicrochip account. This is normal—registration is free and grants access to technical support, forums, and downloads.
Once logged in, the MPLAB 5.35 download will begin. The file is large (~1 GB), so a stable internet connection is advised.
The story of MPLAB X v5.35 is essentially the "last stand" of classic 8-bit assembly programming.
While newer versions of the IDE (Integrated Development Environment) exist, v5.35 remains a critical download for many embedded engineers because it was the final version to include the MPASM assembler The Turning Point
Starting with version 5.40, Microchip transitioned MPLAB X to a pure 64-bit application. Since MPASM was a 32-bit tool and had reached its end-of-life for development, it was dropped from subsequent releases. This left developers with legacy projects in a difficult spot: they either had to rewrite their code for the newer PIC-AS assembler or stay frozen in time with v5.35. Key Features of v5.35 Last of the MPASM: mplab 5.35 download
The primary reason for its continued popularity; it allows you to compile legacy files without major porting. Device Family Pack (DFP) Support:
Despite its age, it supports the newer DFP system, which technically allows you to add support for newer microcontroller chips as long as they are compatible with the IDE's core. 32-bit Compatibility:
It is one of the last versions that can run comfortably on older 32-bit operating systems or interface with older 32-bit toolchains. How to Download
Because it is a legacy version, you won't find it on the main homepage. Instead, you must access the official MPLAB X Archive Navigate to the MPLAB X IDE section of the archive. Locate the version marked Click the appropriate link
Choose the installer for your OS (Windows, Linux, or macOS).
If you are moving to newer hardware (like the PICkit 5 or newer PIC families), you may eventually need to transition to the latest MPLAB X IDE XC Compilers
, as newer versions have dropped support for older debuggers like the PICkit 3. Are you looking to migrate a specific legacy project , or are you setting up a new environment for an older PIC chip? 5.3 MPLAB XC8 Compiler - Microchip Online docs
Important Note: MPLAB X IDE v5.35 is a legacy version. Microchip Technology continuously updates its software. While v5.35 is still used for maintaining older projects or specific toolchains, Microchip strongly recommends using the latest MPLAB X IDE (v6.xx as of 2025) for new designs. On macOS/Linux:
If you need v5.35 specifically, here is your official guide.
MPLAB X 5.35 is available for:
| OS | File Name (example) | Size (~) |
|----|----------------------|-----------|
| Windows 64-bit | MPLABX-v5.35-windows-installer.exe | 950 MB |
| Linux 64-bit | MPLABX-v5.35-linux-installer.sh | 970 MB |
| macOS (Intel) | MPLABX-v5.35-osx-installer.dmg | 980 MB |
Important: There is no 32-bit Windows version for v5.35. If you need 32-bit, consider v5.05 or older.
MPLAB X IDE 5.35 is a legacy release of Microchip’s integrated development environment for PIC and dsPIC microcontrollers. If you need this specific version (for compatibility with older toolchains, plugins, or a stable project environment), here’s a concise guide covering where to obtain it, verification, installation tips, and troubleshooting.
| Issue | Solution |
| :--- | :--- |
| "Download link is broken" | Clear browser cache or try a different browser (Firefox/Chrome). |
| "Java not found" | v5.35 includes its own Java. Do not install a separate version. |
| Cannot detect PICkit 3 | Install the legacy USB drivers from the drivers folder inside the MPLAB installation directory. |
| Project won't build | Ensure you have the exact compiler version that matches v5.35 (e.g., XC8 v2.05 or earlier). Newer compilers may fail. |