Yub-X Executor
Yub-X is a freemium Roblox script executor for Windows. The developer advertises a 100% sUNC score, fast injection and near-instant script execution, with a free key-based tier and an optional one-time paid tier that removes the key system.
What Yub-X is and how its free tier works
Yub-X positions itself as a high-performance executor that is "freemium" rather than fully free or fully paid. The free tier is gated behind a key system: you complete a short series of checkpoints (three, according to the developer) to receive a key, and that key keeps the executor unlocked for 12 hours before you need to repeat the process. The developer says this takes roughly five to ten minutes.
The paid tier is advertised as a single $20 purchase that removes both the ads and the key system. If you only run scripts occasionally, the free tier may be enough; if you'd be re-doing the key process every day, compare that time cost against the one-time fee.
About the 100% sUNC claim
Yub-X advertises a 100% sUNC success rate, which would mean it passes the full sUNC compatibility test suite that most script hubs are written against. That figure comes from the developer, and sUNC results shift between Roblox updates, so we list it as a claim rather than a confirmed benchmark. Check the current result on a community tracker before relying on it for a script-heavy hub.
What the developer says it offers
100% sUNC (claimed)
Advertised full sUNC compatibility, intended to run most online scripts without missing-function errors. Developer-reported.
Fast injection
Advertised as a quick attach to the Roblox client. We haven't timed it ourselves.
Instant execution
Scripts pasted into the built-in editor are described as running as soon as you press execute.
Freemium model
Free key-based tier, plus an optional paid tier with no ads or key system.
Built-in editor and tools
A script editor and additional tools are built into the client interface.
Low system requirements
Windows 10/11, 1.5 GHz CPU, 2 GB RAM and any DirectX-compatible GPU, per the developer.
How to install Yub-X
Download the installer
Use one of the two mirrors in the download panel below.
Allow the file through your antivirus
Unsigned executor binaries typically trigger a generic Defender/SmartScreen warning. Scan the file yourself first and only allow it if you trust the source.
Launch Yub-X and enter your key
On the free tier, complete the key checkpoints to get a key and enter it when prompted. Paid users skip this step.
Open Roblox, attach and run scripts
Open Roblox and let it finish loading, attach Yub-X from its interface, then paste a script into the editor and execute it.
Safety & detection notes
Yub-X is a third-party tool that operates outside Roblox's Terms of Service, and using it can result in an account ban. The developer's marketing describes it as undetected, but no executor can honestly guarantee that, because Roblox's anti-cheat changes with each update. The developer also reports a clean VirusTotal scan, but that applies to one file at one point in time and not to every mirror circulating under the Yub-X name. Only download from the mirrors below, scan the file yourself, and be careful with payment details if you buy the paid tier.
Requirements
Windows 10 or 11, a 1.5 GHz processor, 2 GB of RAM and any DirectX-compatible graphics card. Roblox installed. Permission to allow an unsigned executable past Windows Defender/SmartScreen. Free tier users also need to complete the key checkpoints every 12 hours.
Download Yub-X Executor
Freemium — free key-based tier, paid tier optional.
Third-party download hosts. Roblox-Exploits.com does not host or control these files — verify the file with your antivirus before running it. See our disclaimer.
Yub-X FAQ
Partly. Yub-X is freemium: the free tier requires a key that you get by completing a short series of checkpoints, and the developer states the key lasts 12 hours. A paid version is advertised as a one-time $20 purchase with no ads or key system.
The developer advertises a 100% sUNC success rate. That figure is self-reported and we have not independently verified it, so treat it as a claim rather than a benchmark result.
According to the developer: Windows 10 or 11, a 1.5 GHz processor, 2 GB of RAM and any DirectX-compatible graphics card. If your PC can run Roblox, it should be able to run Yub-X.
We can't vouch for any specific file. Like most executors it is an unsigned injector and may trigger a Windows Defender or SmartScreen warning. The developer says a VirusTotal scan comes back clean, but you should always scan the exact file you download yourself before running it.
Yes, it can. Yub-X is a third-party tool that operates outside Roblox's Terms of Service, and no executor is guaranteed undetected. Use a secondary account you are prepared to lose.