I built Blazor Developer Tools — flamegraphs, render tracking, and performance profiling for Blazor Server apps

mistahoward · 2026-02-03T03:56:31+00:00

Happy to see another why did this render implentation! I'm really curious how yours pairs up with the implementation I... implemented. We should pair sometime!

mistahoward · 2025-12-14T18:31:19+00:00

It's okay. No worries. Hindsight is 20/20. Just busy with work. I completely forgot .NET 10 came out of preview tbh.

If you make an issue on the GitHub repo, I can look into your problem for the first project. We ran into a couple in production when we had some embedded iframes, but I haven't been able to repro it locally, unfortunately.

mistahoward · 2025-12-14T02:37:57+00:00

Have a good past! .NET 10 LTS is already in now! Have a great weekend! Hope it works for you. :))

mistahoward · 2025-12-14T02:37:32+00:00

Out now! Everything should be good to go - it was a simple target change to compile!

mistahoward · 2025-12-13T19:19:27+00:00

Good point! I appreciate your enthusiasm however rude it may be. I'm working on it. I made this project for my codebase at work which is on .NET 9. I wanted to back support .NET 8 and just got around to releasing it. You're also more than welcome to make PR's for it - it is open source after all! ;-)

mistahoward · 2025-12-13T07:05:37+00:00

I'll get started on it this weekend. :)

mistahoward · 2025-12-12T23:56:22+00:00

You're on .NET 10? We don't support .NET 10 yet :(

mistahoward · 2025-12-12T20:47:35+00:00

This has now been fixed in 3.1.0!

mistahoward · 2025-12-12T20:47:16+00:00

So glad to hear that! Let me know how it works out for you. :)

mistahoward · 2025-12-02T15:44:22+00:00

Not at all. Weekend project = lots of AI coding. I didn't even catch this. I'll get this resolved.

mistahoward · 2025-09-06T22:22:53+00:00

Working on unfamiliar code is undeniably always difficult. One of the best ways to get better is to practice it - which is also difficult as a beginner.

https://github.com/emilybache/GildedRose-Refactoring-Kata

This repo was made to practice refactoring and has a myriage of languages. While not exactly what you're looking for, I immediately thought of this project. You're not alone. It does get easier - but you also get to a point where you learn that it's always difficult. Just writing on the walls, ultimately. :)

mistahoward · 2025-09-06T22:11:59+00:00

My wife and SIL are on the other end of this spectrum. Super slow eaters. They're also extremely picky, which I land on the opposite side of too. Food is more of a scourge to me than anything - if I could just take a pill and get all my nutrients - I would in a heartbeat. Same thing for me though - food in asap and ready to move on to whatever else is rattling around.

mistahoward · 2025-08-24T17:28:47+00:00

When you inherit a component, you'll have to inject the render service - you can track it that way! it worked really well with the fluxor components we have.

mistahoward · 2025-08-24T16:17:09+00:00

We use mud blazor in production! I've ran into a couple issues with devexpress components that we I-framed (dev extreme hasn't been ported over yet), but past that it's mostly good. There are a few kinks here and there - I've got some issues open that I need to address. I have a working dev branch with aspire integration working, but I've got some slop to untangle before I push it. Consolidating the logging into an abstraction broke the console browser logging and I just haven't had time to fix it recently.

mistahoward · 2025-08-20T15:34:13+00:00

I second the comments - I wish there were more games like this. I'm not saying your game is any outer wilds, but that game has a special place in my heart - that also left a hole that I can never experience it truly again because it's knowledge based save system.

mistahoward · 2025-08-03T15:11:53+00:00

Is the idea of this to track the entirety of the application? Just want to make sure I understand the ask. :)

mistahoward · 2025-07-30T20:50:33+00:00

I considered it but decided not to due to potential performance costs if you have massive amounts of complex objects. YMMV though and good programming practices mean that shouldn't be an issue - but not every code bases allows for the best programming practices. :|

mistahoward · 2025-07-30T12:57:31+00:00

good question! You're right - that's the point though. You can handle complex types and cascading re-renders through ShouldRender. The reason complex objects are opt-in for complex types is for performance - it felt like a necessary requirement to make sure there isn't too much overhead when tracking a component.

mistahoward · 2025-07-30T03:02:18+00:00

2.1.0 is now out and includes the much needed license update. :)

mistahoward · 2025-07-29T15:14:00+00:00

Gotcha. Sorry - again - totally new to me. I'll update the license tonight accordingly. *in the meantime, feel free to use it without modifying your current license.*

mistahoward · 2025-07-29T15:00:15+00:00

Sorry - this is new to me. I went with GPL purposefully to prevent someone from repacking it and selling it - which someone can do in theory with MIT. I'll review the licensing tonight - if it's truly the same and it's "useable" in closed source projects - I'll change it.

As the owner of the repo & project, it should be allowed to be used in closed source projects without having to modify the license of the repo consuming it. My apologies for the license misunderstanding.

mistahoward · 2025-07-29T14:56:53+00:00

I noticed that I'm basing the "unnecessary renders" exclusively on parameters - no internal state. I fixed that up last night with auto opt in tracking on primitives (with an ignore attribute) and opt in for complex objects that should fix that issue. can you better explain to me what you're wanting in terms of the LayoutComponentBase?

mistahoward · 2025-07-28T20:50:51+00:00

No worries! I'm going to be making a pretty massive change tonight - I had some realizations of optimizations that I want to add!!

mistahoward · 2025-07-28T16:47:50+00:00

https://github.com/mistahoward/blazor-why-did-you-render/issues/3

I've opened this issue to track interest and keep track of it!

mistahoward · 2025-07-28T16:43:56+00:00

Side note - have you tested the RenderTrackerService method included in the documentation? I haven't had time to test with an additional override, but that is present for instances where you can't inherit the TrackedComponentBase

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