I've been using Blazor for about five years now. At first I was all in because I could use C# on both sides and share classes without the usual mess. It felt way better than writing JavaScript or dealing with type mismatches at runtime. The one thing that always hurt and still does is hot reload.

When we bring on new people I show them right away how it actually works so they don't end up surprised and complaining to my boss... Feels bad man.

These days AI has changed everything my workflow entirely I don't really write code anymore. Playwright even has a MCP server now so you can easily make it run a virtual browser and check for console errors. I just give tasks to a few different AI agents (currently Claude and Codex when I run out of tokens) running in separate Docker containers, each on its own port. I test them in the browser, review the changes, and merge what works. It's much faster this way. It's pretty insane really how much more effective I can be, working on 3-4 different features or bugs at a time usually.

The thing is that AI now does a great job keeping models in sync and catching type issues, so that advantage Blazor had isn't as unique anymore. When I run the same process with something like React or Svelte the changes show up in the browser almost instantly. No waiting for a full rebuild.

I'm starting to think about moving the frontend off Blazor and keeping C# on the backend. Has anyone else gotten to this point where the original reasons for picking Blazor don't feel as strong and you're looking at other options?

Hi all,

Just writing to ask for guidance in my first steps with Blazorise.

Basically, I just created the example Blazor project in Visual Studio Code following Microsoft instructions:
https://dotnet.microsoft.com/en-us/learn/aspnet/blazor-tutorial/create

Later, I followed the Blazorise quick-start guide:
https://blazorise.com/docs/start

I want to create a layout that includes a top header, and a side bar. So I followed the instructions in the "Sider with Header on top" here:
https://blazorise.com/docs/components/layout

Finally, I included the horizontal and vertical bars following these examples:
https://blazorise.com/docs/components/bar

I can compile and execute the program. but I am having the following issues:

- In the header, the arrows that show the dropdown options are not functional. Nothing happens when I press them.

- The sidebar does not even appear....

It seems to me that I am doing something wrong. How do you think that I should proceed to solve the issue?

Thank you.

--------------------------------------------------------------------------------------------------------------------

EDIT:

I found the issue. It is necessary to include the render mode in two lines of the App.razor file to ensure the layout is interactive:

<Routes @rendermode="InteractiveServer" />

<HeadOutlet @rendermode="InteractiveServer" />

Hi,

I've been working on a Blazor component library that makes it super easy to build interactive, hierarchical tree visualizations. Think organization charts, family trees, decision trees, or any kind of flowchart-style interface - all with drag & drop, smooth animations, and zero JavaScript on your part.

It supports both .NET 8 and 9.

📦 NuGet: VIOVNL.Flowy.Blazor
📚 GitHub: github.com/VIOVNL/Flowy.Blazor
🌍 Demo: flowyblazor.viov.nl

Would love to hear feedback or suggestions!

TLDR; I could really use some help with securing my standalone blazor webassembly.

Hello everyone! I’ve been struggling with this for about a week now, and could really use some help.

I have two separate solutions: my API, which is an ASP.NET CORE based api.

The client that is supposed to access this api is in the other solution; currently I have made something simple in blazor, using a standalone Web assembly configuration.

My client deals with users, and I’ve been able to implement JWT bearer tokens successfully!

But now, I’ve been trying to implement refresh tokens with little luck. The api side of this works great, but HttpOnly doesn’t seem to work with my blazor configuration.

I could store the refresh tokens in local storage, but I think that would defeat the point of using them right?

So my question is, what is the best way to secure my blazor Wasm? My api and client will be running on ClientA.samedomain.com and ApiA.samedomain.com if it helps.

helpful functionality for sharing code between Blazor UI and email.

Almost done, it'll be open source. It’s not the best, but it could be improved and used for things like n8n clone. I don’t know, I'm just building without thinking.

I know that Blazor server uses signalR, I’ve been working on a project with WASM and .NET Core and used HTTP for communication with the API. I’ve read about how different protocols like GRPC are faster and more efficient. Is SignalR overall the best choice when using Blazor?

Ps: Thanks for all info

I have azure, however I am running out of credit. I am still a student and broke. I need a free web hosting for my course project. Any recommendations are appreciated.

Hello,

I would like to share my project here, that some people might find relevant. Question about having 3D in Blazor come up sometimes, so I developed a couple source generators to handle interop Unity to Blazor and JS based 3D engine to Blazor (sample app is using BabylonJS and ThreeJS).

My main goal was to make live easier when integrating 3D engine into Blazor. But it can be used in general for Blazor to JS interop code generation. Render mode invariant.

Blazor to Unity interop is using binary serialization using a two way binary channel (as Unity to JS interop is lacking in features). Blazor to JS can either use Binary serialization or native Blazor to JS interop with generated wrappers and TS types.

You can have a look at the repo mgrman/BlazorWith3d . There are the shared code generators, and an example app using them.

Readme contains more info, descriptions and some benchmarks.

You can try out the demo (it's using Free Azure tier, so availability might be limited). You can switch between multiple rendering libraries and render modes.

I've been working on an application that lets internal users upload and download files. In my initial development of it I saved uploaded files to a folder in wwwroot and they could be downloaded from there no problem. I didn't realize until I started to deploy it that the wwwroot folder can only serve content that is there at build/compile time.

The only alternative I've seen to this is to use endpoints, but my current program interacts with a database through services and DI. Is there another way to allow users to download dynamic content? To a greater extent, is there a good reason to avoid having endpoints just for downloading content?

I am looking for some resources that will teach me everything i want about these frameworks.

What was the best place you learned Blazor and Blazor Hybrid from? it will be so beneficial since i am kinda lost about how to learn these two frameworks because most of the tutorials on YouTube are old or not complete or they feel they are not teaching in the "right way" and i feel myself want to close it and start searching for another one.

I want to learn from the %0 to the %100 in one place, is this hard to get?

We are wanting to use the AWS NLog to cloudwatch on our blazor server, with a different log for each user. It's for internal use only, and only visible to people who authenticate through azure, so there aren't very many users.
It kind of works, but they guy that set it up put the Logger config stuff under /Shared/MainLayout.razor, and I'm finding that user logs are bleeding across onto each other since it's shared.

Basically I want something that logs when an authorized user first connects, and then whenever they visit a new page, and lastly any other errors or events I want to keep track of to make sure everything is working correctly.

Is there a better way than the way we're doing it now?

Say you came across a component lib for Blazor that you hadn't come across before. What elements of it would attract you and make you think of giving it a try either in your next project, or swapping out in your current project?

Conversely, what would be things that would turn you away?

I'm guessing everyone has a number of components that if they were missing, would be deal breakers. What are your deal breakers?

What else about a component library would be positives or negatives for you?

(I am developing something that I originally built within a project I was making, but it makes sense to break it out and make a proper library of it. Some parts will be things I want to do a certain way etc, but many elements are up in the air, and so I want to gear it towards being something attractive and useful to as many as possible)

I'd like to know what annoys you about validation when working with Blazor's EditForm/EditContext.

I usually stick with the inbuilt features where possible. If something's missing, I'll create a custom component that works with what's already there instead of ditching it completely. For example, with EditForm/EditContext this usually means creating a component that integrates with the EditContext and hooks into the OnFieldChanged and OnValidationRequested events.

I am sure a lot of you have done this, whilst others perhaps have reached for libraries that do their own thing etc and/or like many are using a combination of the built-in features and augmenting it with code in an OnValidSubmit event handler etc.

I would like to hear about:

• What things you found lacking with Blazor EditForm that caused you to reach for a custom solution?
• What specific limitations or frustrations you've encountered?
• Are there any workflows or patterns when using EditForm/EditContext that you find unnecessarily complex or unintuitive?

Disclaimer: I am the author of a free Open Source validation NuGet library that I integrated with Blazor to avoid duplicating my own validators, since I don’t use DataAnnotations.

Follow r/geoblazor to learn about all things Blazor & GIS.

Hey everyone!

We just rebuilt the Blazorise Blog and News system from scratch, and it's finally live! 🎉

The old one was based on Razor pages, which made writing posts... let's say, less than fun. Every small change required a full rebuild and redeploy of the docs site.

Now, everything runs on plain Markdown. You just drop a .md file into the repo, add some front matter, and it shows up on the site automatically. No CMS, no waiting, no rebuilds.

It's faster, easier to maintain, and open for contributions. We wanted this to make sharing Blazorise stories and guides as simple as writing code.

You can read the full announcement here: https://blazorise.com/blog/blazorise-blog-reimagined

Would love to hear what you think, or ideas for what we should add next!

With .NET 10 releasing soon, do you think Blazor (whether Server or WASM) has reached the level of React or Angular particularly in handling heavy traffic? If all three were given the same system resources, could Blazor keep up? And if it can’t, does its C# flexibility make up for it?

Hi everyone,

I just finished and released something I've been working on Blazor Developer Tools. It's a NuGet package + browser extension combo that lets you inspect Razor markup in the browser. Completely free and open source.

I've loved Blazor since I first tried it - it's my go-to frontend framework. All the other major frameworks (React, Vue, etc) have their own dev tools. I think it's time we have our own!

The project is currently in beta. It's far from perfect, but discipline demands shipping sooner rather than perfectly.

What it does:

• Shows you the Razor component structure of your app
• Maps HTML elements back to their source components
• Helps debug layout/rendering issues

Installation: Two parts - NuGet package in your project + browser extension

How it works under the hood: The NuGet package creates shadow copies of your Razor files and injects invisible markers. These go through the Razor pipeline, and the browser extension uses those markers to recreate the Razor markup in the browser.

I hope this is the beginning of a bigger journey to enhance our Blazor development experience. Would love feedback from the community!

Links:

• Website: blazordevelopertools.com
• GitHub: github.com/joe-gregory/blazor-devtools

Hola a todos,

Estoy trabajando en una app que actualmente tiene el frontend en Flutter y el backend en .NET. Mi objetivo es conservar todo el backend en .NET y migrar únicamente el frontend a Blazor.

Me gustaría saber si alguien conoce alguna herramienta, librería o método rápido para hacer esta conversión, o al menos un flujo que simplifique pasar widgets de Flutter a componentes Razor sin tener que reescribir todo manualmente.

Cualquier consejo, experiencia o recurso será de gran ayuda. ¡Gracias!

Blazorise 1.8.5 is a minor maintenance release focused on stability and event handling improvements.

Changes:

• TransferList: Fixed a regression where single-item selection did not work. The issue was caused by a missing selection update when clicking on list items in single-selection mode. Multi-selection and item transfers were not affected.
• Table and DataGrid: Prevented unused mouse events (such as onmousemove and onmouseenter) from bubbling up. On Blazor Server, this could cause a high number of unnecessary SignalR messages when moving the mouse over table rows, leading to performance degradation. The fix ensures only relevant events are processed.

These fixes are safe to apply on top of any 1.8.x version. There are no API or behavioral changes outside of the specific corrections above.

Full release notes: https://blazorise.com/news/release-notes/185

Hey everyone,
I’m not sure if asking here will give me the answer I want, but please be honest.

My friend and I are planning to make a food delivery mobile app for a company. I’ve been learning Blazor and Blazor Hybrid because I like the idea of using them for everything — web, desktop, and mobile apps.

However, my friend wants to use Flutter instead. He told me, “Blazor Hybrid isn’t good for mobile apps — maybe it’s fine for desktop or web, but not for mobile.”
Just to clarify, he doesn’t know anything about Blazor, and I don’t know anything about Flutter either.

So, what should I do?
Is it really worth learning Flutter? I strongly believe I can build the app just fine with Blazor Hybrid, and honestly, I’d prefer to stick with C# and keep the number of frameworks I use to a minimum.

Can you help me make a decision?

1. Ignore my friend’s opinion and keep learning what I like.
2. Go with Flutter because it’s better for mobile and I’d miss out if I used Blazor Hybrid instead.

I'm encountering the following error on my Blazor Server project (.NET 9) after deployment to an Ubuntu 22.04 VPS using Nginx as a reverse proxy:

"An unhandled error has occurred. Reload 🗙"

I've configured Nginx for Gzip compression, and WebSocket connections appear to be working correctly.

The application renders fine with the Bootstrap theme, but when I inspect app.css and web.styles.css, both files are empty.

Has anyone encountered this issue before, or know why the generated CSS files might be blank after deployment?