Hi, I’m Luiz. I made Lagcheck because I have been in the same spot as so many people playing online: the match starts stuttering, someone teleports across the screen, and an input feels late.
Then you open a speed test. The connection looks fast. And you are left with that frustrating feeling that nothing explains what just happened.
That is where Lagcheck started. I wanted a less confusing way to look at a connection before blaming the game, Wi-Fi, or the provider. Something that could help separate speed from stability.
Over time, I kept running into words like latency, jitter, and packet loss. They sound technical, but they describe things players know well: delay, spikes, stutters, and a match that feels off even when the internet is “good”.
Lagcheck cannot fix anyone’s network with a button. It also cannot always tell the exact cause. But it can help make sense of what is happening — and that already changes the conversation.
It is an independent project, made in Brazil and still under construction. There is no huge team behind every detail. There is a lot of testing, trying things out, ideas that work, ideas that need to go back to the workbench, and conversations with people who use it.
Today, Lagcheck is free, with no account or subscription. The app may show clearly identified ads to help keep the project going, but they stay out of the Check and inconclusive results.
I want to keep it simple: you have lag, you want to understand why, you open Lagcheck, and you leave with a clearer reading than you had before.
If you made it this far, thank you for giving something that is still growing a chance. Really.
Luiz
Creator of Lagcheck · Rio de Janeiro, Brazil
Found a problem, have an idea, or just want to talk? Send me a message. Or open Lagcheck and run a Check.
Lagcheck is an independent project by SignallQ.