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MewUI

Free#48 of 61 in Desktop App Development Frameworks

MewUI: A free, open-source C# UI framework for desktop apps on Windows, Linux, and macOS. Ranked #48 of 61 in Desktop App Development Frameworks by our editors (4.5/10); pricing: Free plan; best for C# developers building cross-platform desktop UIs.

4.5/10Editor score

Visit MewUI

MewUI4.5 Visit MewUI

At a glance

Editor score
4.5 / 10
Pricing
Free plan
Best for
C# developers building cross-platform desktop UIs
Free plan
Yes
Paid from
Free
UI stack
Custom
Facts checked
23 Oct 2026

Where it wins
- Build interfaces with fluent C# markup instead of XAML.
- Supports Windows, Linux/X11, and macOS desktop hosts.
- Includes editor preview, hot reload, and runtime inspection tools.
Where it doesn't
- The public API is still stabilizing, so minor releases may bring breaking changes.
- Does not target mobile platforms.
- Support is through documentation and the community.

Our verdict on MewUI

MewUI is a code-first .NET framework for building desktop interfaces in C# without XAML. It is aimed at developers who want to build for Windows, Linux/X11, and macOS from one framework, including solo developers and small teams. Its fluent markup, common controls, and explicit data binding cover typical interface needs, while NativeAOT and trimming support are intended for self-contained native executables. The framework is free and open source under the MIT license.

MewUI’s development tools are a notable part of its offering. Editor preview is available for Visual Studio, VS Code, and Rider, and hot reload supports changes during development. Runtime visual-tree and property inspection, along with profiler tools, provide ways to examine an application while it runs. These features make the framework more than a set of controls: it includes tooling for composing and inspecting the UI. Developers looking for a C# workflow without XAML may find that combination relevant, especially when targeting desktop rather than mobile.

The trade-off is project maturity: maintainers say the public API is still stabilizing and breaking changes may occur between minor releases. That matters for teams prioritizing a settled API and predictable upgrade work. Support channels are documentation and community, which may not suit organizations that need commercial support. MewUI is a fit for developers comfortable following an actively developed open-source framework and its API changes; teams requiring a stable public API or a support offering beyond documentation and community should consider alternatives.

Your product? Our editors can test MewUI in depth and publish a review, labelled as paid · from $149/mo →

MewUI pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on mewui.aprillz.net

MewUI fact sheet

Free plan	Yes
Paid from	Free
Supported desktop OS	Multi_platform
UI stack	Custom
Primary language	C#
Open source	Yes
Mobile targets	No
App packaging	Bundle
Commercial support	Not verified
Deployment	Cloud
Platforms	Windows, Linux, macOS
Support	Docs, Community
Built for	Solo, Small business (editorial estimate)
Pricing	Free plan
Website	mewui.aprillz.net
Facts checked	23 Oct 2026

Alternatives to MewUI

See all MewUI alternatives →

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used MewUI for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

MewUI is listed in our Desktop App Development Frameworks directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 30 Oct 2026 · How we research and update