Caddy vs Uno Platform

What Caddy is

Caddy is a web server that obtains and renews TLS certificates automatically, with a configuration file most people can read.

What Uno Platform is

Uno Platform is an Apache-2.0-licensed .NET UI framework for building applications from a shared C# and XAML or C# Markup codebase across Windows, Android, iOS, WebAssembly, macOS and Linux. Its open-source runtime is complemented by account-based Studio tooling such as Hot Reload and Hot Design. Actual target coverage depends on the development host, IDE, .NET workloads, platform SDKs and renderer, so single-codebase does not mean identical tooling or behavior everywhere.

What Uno Platform is built to do

Shared .NET UI

Uses C# with XAML or C# Markup to share application and interface code across targets.

WebAssembly target

Runs supported .NET UI applications in modern desktop and mobile browsers.

Skia desktop

Targets desktop environments on Windows, macOS and supported Linux configurations.

Studio tooling

Adds account-based Hot Reload and Hot Design workflows where the compatibility matrix permits.

Choose Caddy if

• Anyone who wants a correctly configured HTTPS server without ceremony.

Choose Uno Platform if

• C# teams extending WinUI-style skills beyond Windows
• Products whose required hosts and targets appear in the supported environment matrix
• Applications that can test and tune each platform rather than assume pixel-identical behavior

Skip Uno Platform if

• A required target or debugging workflow is unsupported from the team's development hosts
• The product depends heavily on native controls or APIs not proven through Uno abstractions
• You cannot maintain platform SDKs, .NET workloads and target-specific QA

Caddy: pros & cons

• HTTPS configured correctly by default
• Configuration is short and legible
• Single binary, easy to deploy
• Smaller community than nginx
• Fewer third-party guides
• Some advanced setups need plugins

Uno Platform: pros & cons

• Broad target matrix: One .NET solution can target Windows, Android, iOS, browsers, macOS and Linux.
• Familiar Microsoft UI model: C#, XAML and WinUI-aligned APIs reduce conceptual switching for .NET UI teams.
• Open-source core: The Uno repository is available under Apache License 2.0.
• Multiple IDE choices: Official setup paths cover Visual Studio, VS Code and JetBrains Rider.
• Host-dependent targets: iOS requires a current Mac/Xcode path, while WinAppSDK development is unavailable from macOS and Linux hosts.
• Compatibility matrix: IDE, host OS, target, .NET version and renderer combinations do not all offer the same build or debugging support.
• Upgrade work: Migration notes include removed target frameworks, tooling updates and platform-specific API changes.
• Studio boundaries: Hot Design requires sign-in, supported project versions and XAML; it excludes C# Markup and currently has target limitations.