Your laptop struggles to run Roblox smoothly, even though it's plugged in and the game is installed. BloxBoost is a one-click Windows tool that lifts the frame cap, cleans up cached junk, and tells Windows to prioritize the game—no new hardware needed.
Roblox caps itself at 60 frames per second by default. On an old machine with a weak CPU or integrated graphics, the client still works hard to render everything—but you hit the ceiling immediately, so you never feel the difference. The game stutters, animations feel chunky, and responsiveness dies.
BloxBoost doesn't replace your hardware. Instead, it tells Roblox to unlock that cap (using the same settings file that community packs use), wipes away months of cached assets eating RAM, and bumps the game's CPU priority so your processor focuses on Roblox instead of background apps. For machines with 4–8GB of RAM and integrated graphics, that alone can turn 40 fps into 80+.
Every change is reversible. If something goes wrong, one click undoes it all and restores vanilla Roblox.
**Ultra**: Unlimited frame cap, bare-bones lighting. Best for potatoes—single-core CPUs, 2GB RAM, ancient GPUs. Roblox will look flat but run.
**High**: 360 fps cap, voxel lighting. This is the sweet spot for low-end Windows laptops from 2015–2018. Big frame-rate bump without destroying the visuals.
**Balanced**: 144 fps cap, better shadows. Good if your PC is decent but still struggles in crowded games. You keep most of the look.
**Quality**: 240 fps cap, modern lighting. For machines that can already run Roblox okay but want to push higher frames.
You can switch presets any time. Just reset first, then pick a new one.
BloxBoost edits Roblox's own `ClientAppSettings.json` file—the same file Bloxstrap and manual FastFlag tweaks modify. It's not hacking the game or injecting code. Roblox reads this file when it starts and applies the settings itself.
It also clears temporary files and old cached assets (sometimes gigabytes of them), which frees up RAM and makes the client lighter. And it sets the Roblox process to 'High' priority on your CPU, so Windows gives it more computing power when games get crowded.
Because you're only changing client-side settings that Roblox expects to read, updates won't break anything. If a future Roblox version changes how it works, the old flags just get ignored.
No. It's free forever, fully open source, and MIT licensed. No trial, no paid tiers.
No. The app has no login and no sign-up. Download, install, boost, play.
The app only writes settings that Roblox itself reads on launch—the same approach community packs use. It doesn't inject code or patch game files. That said, Roblox's terms are theirs to enforce; use at your own discretion.
Click 'Reset'. Every change the app made is removed instantly, and Roblox goes back to how it was before.
Yes. Windows 10 and 11, both 64-bit.
No. The app runs completely offline with no telemetry or update checks.