Lazarus-main.zip -

: If you intend to contribute to the Lazarus project itself, you need the source code from the main branch.

: Do not extract it to C:\Program Files on Windows, as restricted permissions can break the build process. Use a path like C:\Lazarus\ or your home directory instead. Install Free Pascal Compiler (FPC) : Lazarus-main.zip

Once the build completes, look for the lazarus.exe (Windows) or lazarus (Linux/macOS) executable in the root folder. Why use "main.zip" instead of an installer? : If you intend to contribute to the

: If this sounds too complex, it is much easier to download the pre-compiled installer from the Official Lazarus SourceForge . Install Free Pascal Compiler (FPC) : Once the

: You get access to the newest components and bug fixes before they reach a stable release.

: Keep the installation path free of spaces (e.g., use C:\Development\Lazarus instead of C:\My Projects\Lazarus ) to avoid confusing older build tools.

If you have downloaded this zip file, follow these steps to get it running: : Unzip the folder to a location on your drive.