Comparison
WSL2 vs native Windows for Rust development
| Factor | Native Windows (rustup + MSVC) | WSL2 |
|---|---|---|
| Windows API access | Full — windows-rs, Win32, WinRT | Limited — Wine or cross-compile only |
| Linux target output | Requires cross-compiler | Native — runs on your WSL2 distro |
| GUI development | Native Windows GUI | X11 via WSLg or remote display |
| File I/O performance | Fast — native NTFS | Slower for Windows FS (fast for Linux FS) |
| Build speed | Fast | Fast — on Linux filesystem |
| Docker integration | Docker Desktop | Native Linux Docker |
| Shell experience | PowerShell, cmd, Git Bash | Full bash/zsh Linux experience |
| Best for | Windows apps, Windows API, desktop | Linux server targets, Linux tooling |
Use WSL2 when
When WSL2 is the better choice for Rust
- Deploying to Linux — compile and test in the same environment as production
- Linux-only crates — some crates use Linux-specific APIs that are not available on Windows
- Docker-heavy workflow — WSL2 runs Docker containers natively without virtualization overhead
- Bash scripting — complex build pipelines that rely on bash and GNU tools
Use native Windows when
When native Windows is the better choice
- Building Windows apps — GUI, system tray, Win32 APIs, Windows services
- Using windows-rs — WinRT and COM APIs only work on the Windows host
- VS Code with MSVC debugger — native debugging experience with CodeLLDB or MSVC debugger
- Simpler setup — no virtualization layer, direct hardware access
FAQ
WSL questions
Can I use the same Rust code in WSL2 and native Windows?
Yes for platform-independent code. Code using #[cfg(windows)] blocks or the windows crate will not compile in WSL2. Structure your code with platform-specific modules behind cfg attributes, and use conditional compilation to support both. Many CLI tools and libraries work on both platforms without changes.
Rust builds are slow in WSL2 on Windows — why?
If your project files are on the Windows filesystem (e.g. /mnt/c/Users/...), WSL2 cross-filesystem I/O is slow. Move your project to the WSL2 Linux filesystem (~/projects/...) for much faster build times. The difference can be 3–10x.