XAML.io — Online .NET IDE (@xaml_io) header
XAML.io — Online .NET IDE (@xaml_io) profile picture

XAML.io — Online .NET IDE

@xaml_io

Design, build & run .NET apps in your browser with C#+XAML. Visual drag&drop UI designer, AI, in-browser compilation to WebAssembly. Free, no signup, no install

xaml.io
Joined September 2025
  • Tweets108
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  • Followers229
What if AI app builders (Lovable, Bolt, etc.) worked directly on real .NET projects? Introducing XAML.io v0.9: - Prompt, edit, run & publish C# + XAML apps - In-browser .NET IDE with AI + a visual designer - Free to use + free AI credits
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XAML.io — Online .NET IDE retweeted
OpenSilver - Web-native WPF (@OpenSilverTeam) profile picture
OpenSilver - Web-native WPF
@OpenSilverTeam11h
Want to try C# 15 before .NET 11 launches? We made 5 interactive examples, including union types and extension indexers. Edit and run them in XAML-io, powered by OpenSilver. C# compiles in your browser via WebAssembly. No SDK install needed. xaml.io/s/Samples/CSharp15Ex…
Image from OpenSilver - Web-native WPF (@OpenSilverTeam)
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Richard Campbell (@richcampbell) profile picture
Richard Campbell
@richcampbellOct 22
Can your WPF app run in a browser without rewriting it in JavaScript? Giovanni Albani joins Carl and Richard to discuss XAML.io, OpenSilver, WebAssembly, and building reliable AI-assisted software development workflows. dotnetrocks.com/details/2025
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Richard Campbell (@richcampbell) profile picture
Richard Campbell
@richcampbellOct 22
Silverlight isn't dead if you have a migration path. This week on .NET Rocks, Giovanni Albani talks OpenSilver, turning WPF apps into WebAssembly with XAML.io, and using AI with real developer guardrails. dotnetrocks.com/details/2025
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RT @OpenSilverTeam: Our CEO was on .NET Rocks! Had a great chat about OpenSilver and XAML.io, our new browser-based .NET ID…
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A new AI model has just been added to our online .NET IDE: Claude Haiku 5.5 List of all models: - GLM 5.3 - Kimi K3 - GPT 5.5 - GPT 5.6 Luna - GPT 5.6 Terra - GPT 5.6 Sol - GPT 6 Astra - GPT 6.1 Sol - Haiku 4.5 - Haiku 5.5 - Sonnet 5 - Opus 4.8 - Opus 5 - Opus 5.5 - Fable 5.1
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Thank you, @ilsoftware, for covering our 0.9 release! Grazie!
IlSoftware.it (@ilsoftware) profile pictureIlSoftware.it@ilsoftwareOct 6
Scrivi un prompt e ottieni un'app .NET completa: XAML.io porta il vibe coding su C# e WPF ift.tt/zfcv8sC
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XAML.io — Online .NET IDE retweeted
OpenSilver - Web-native WPF (@OpenSilverTeam) profile picture
OpenSilver - Web-native WPF
@OpenSilverTeamOct 5
No AI. Unedited footage of porting a 6-year-old WPF Tetris game to the Web in under 100 seconds with xaml.io
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GPT-6.1 Sol is now live (and free to use) on XAML.io
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Thank you, @Iprogrammerinfo, for covering the launch of our new web-based coding agent for .NET! Link to the article: i-programmer.info/news/89-ne…
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Web-based AI app builders usually generate React. Ours generates real .NET, C#, and XAML.
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XAML.io — Online .NET IDE retweeted
Sagar Tanur 🇮🇳 (@Sagarvd01) profile picture
Sagar Tanur 🇮🇳
@Sagarvd01Sep 26
XAML.io v0.9 (Sep 21): describe a .NET app, agent writes C#/XAML, compiles in-browser via WASM, reads diagnostics, fixes until it runs. standard .NET solution you can open in VS. Version History + per-request cost in *dollars* (their Win98 Paint stress test: ~42 min, ~3500 LOC, ~$57 on top model). AI opt-in; no AI means code stays local. rare honesty about sticker price.
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Ported nostalgic classic Windows 3D Starfield screensaver by jiludkumar-therealone to C#/XAML Live web demo: starship-viewport.xaml.cloud Source: xaml.io/s/github/jiludkumar-…
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Want to try Opus 5.5 (Low) for free? We just added it to XAML.io It’s free up to $5/month, with a $3/day cap, and you can see exactly what each request costs. We tried: "Create a mobile-friendly Minesweeper clone" Here’s what it made 👇 xaml.io/s/Samples/Minesweepe…
Image from XAML.io — Online .NET IDE (@xaml_io)
Image from XAML.io — Online .NET IDE (@xaml_io)
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No credit card needed. We’re all about instant gratification 😄 Just sign in, select the new model, and start using it.
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Thanks for the great write-up, @thurrott! 🙏
Thurrott Feed (@Thurrottfeed) profile pictureThurrott Feed@ThurrottfeedSep 21
XAML.io Lets You Build .NET Apps in a Web Browser dlvr.it/TVb0tM
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Prefer to design visually? The drag-and-drop designer edits the same XAML the agent writes. Arrange controls and set properties without writing code, then go back to prompting or coding anytime.
Image from XAML.io — Online .NET IDE (@xaml_io)
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There’s a lot more behind v0.9: how the agent works, the .NET project underneath, WPF migration, Web + Desktop publishing, pricing, and what we’re building next. Read the full post on our blog ↓ blog.xaml.io/post/build-dotn…
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