The frame rate limiter in Roblox is hardcoded to 60 FPS by default — even if your PC can handle more. Roblox Unlocker writes a single FastFlag that tells the engine to push as high as your hardware allows. Your account, game files, and purchases never change.
Installation and first boost take about one minute.

Roblox Unlocker writes the same performance flags that Roblox already recognizes internally. The moment you boot the game after applying a preset, the frame counter stops capping at 60 and climbs toward your monitor's refresh rate or your GPU's actual limit. The effect is immediate and doesn't require restarting your PC.
Most frame-rate "unlockers" are websites or browser extensions that claim to boost FPS — but they can't. Roblox Unlocker is a Windows app that actually changes what Roblox reads.
Roblox Unlocker touches only performance settings. Everything else stays exactly as it was.
The TaskScheduler target-FPS flag is the only value the unlocker writes that Roblox reads at startup. It tells the engine to render at your monitor's speed instead of locking to 60. You can set it to 144, 240, 360 or unlimited.
Roblox Unlocker never touches your login, session tokens, or account settings. You log in the same way, your username is the same, and Roblox servers see no difference in your traffic.
No game code is modified, no DLLs are injected, and no memory is patched. The unlocker only writes to Roblox's own ClientAppSettings.json config file — the same place Bloxstrap and the FastFlag community write to.
Your Robux balance, game passes, and cosmetic purchases are server-side and have nothing to do with performance flags. Buying, selling and equipping items works exactly as before.
Roblox Unlocker writes flags to a config file that Roblox's own launcher reads at startup — the same method that Bloxstrap uses. It doesn't inject code, patch memory, or alter the game client. Whether Roblox allows frame-rate unlockers is Roblox's decision, not ours; you should check the game's terms before using any optimization tool.
Yes. The Reset Flags button removes every value Roblox Unlocker wrote and restores Roblox to its default settings in one click. You can toggle presets on and off as many times as you want.
Roblox Unlocker runs on Windows 10 and Windows 11. If your laptop can run Roblox at 30+ FPS, a preset like High FPS or Balanced will help smooth out performance. Ultra FPS is built for rigs with stronger GPUs.
Roblox Unlocker detects every Roblox version on your PC and applies the preset to all of them in a single pass. If you later uninstall a version, the next time you run the unlocker it will skip folders that no longer exist.
It depends on your hardware and which preset you choose. Ultra FPS can push 144+ on a mid-range GPU if the game is not heavily loaded. In a crowded server or during a raid, you'll see a smaller jump but steadier frame pacing overall.
Roblox Unlocker bumps the Roblox process to High priority on your CPU, which helps with frame pacing when other apps are running. The presets also let you switch render backends — Vulkan for GPU throughput, Direct3D11 for stability — depending on which hardware bottleneck you want to fix.
Roblox Unlocker is free to download and free to use. The source code is open on GitHub if you want to check how it works.
Roblox Unlocker is a one-minute setup that your PC keeps applying every time you launch the game.
Download for Windows