Someone built a web-based System Design Simulator, where you drag & drop architecture components and actually simulate traffic, failures, latency, and scaling in real time, System design just got way more interactive.

This is built by @lordpratap. Here’s the link:

This is actually brilliant for learning system design. Way better than static diagrams in textbooks. Being able to visualize how components interact under different loads is huge for understanding trade-offs.

Fr

I think it’s inspired by

next time just share the source also ,

the failure simulation is the useful part

it's very useful for system design

yeah beats reading about it in a textbook

most people just draw diagrams. builders simulate and stress test. real-time data is the only way to validate if your system actually scales.

Tru

Okay, you got your engagement AND you shilled some get money fast ad. Maybe drop the source of the project too

Cool stuff. Though someone built it before and this one seems like a copy. Not saying that it is, just that there are a lot of similarities. Here's the old one :

I built a one for AWS use case

Source is not reachable atm -

this makes system design way less intimidating. Would’ve loved this while learning

yeah! it's very easy to understand

Moved to

Is that opensource or not?

yeah it's open source

Appreciate it mate, can you attached the source too?

This is fantastic. Good one

beautiful

cool shit

Hey @grok can you provide git repo for this project

Way better than static diagrams.

System design as a playable tower defense? Genius. Visualizing latency bottlenecks beats drawing boxes in Excalidraw any day. Link it or it's vaporware.

Got one similar that has gesture control so you can use your hands lol

I'll bet it's a nice looking chrome dev wrapper. Not knocking. If yes that's smart.

Finally! Reading diagrams is one thing, but actually seeing the 'cascading failure' happen in real-time is a game changer for learning. This is going to save so many people from dry whiteboard interviews.

Built something similar but with extra feats. >realtime collaborative app >AI assistance (chat and cursor based)

nice

yeah it's actual good project

Cool

yeah

Thanks for the info man. Please drop the link too I couldn't zoom in the video

@aminnnn_09 This changes how backend devs prepare.

Its very interesting

nowadays there's anything possible in sw

lovely animations guys workflows that finally exciting to interact with

that's really interesting cool project. @Amank1412 would you able to share github repo link?

The web app doesnt work properly and what are the key bindings man , R for rectanlge is so common who will press 2 for it , visulally looks good though..

This is crazy!! Any limitations you would wanna share ?

Ohhh, I like this one! This can help plan agentic engineering.

Good share