Derzko Executor is a free, Windows-native Roblox script executor built by rayan and isandex — two developers who actually use the tool themselves and keep it updated weekly. It sits at 99% UNC (Unified Naming Convention) and 99% sUNC, meaning it supports nearly every modern Roblox script function without breaking or erroring out. That puts it in the same tier as paid executors, except Derzko costs nothing.
What makes it stand out is the Switch Execution API — a flexible system that lets you swap execution modes on the fly depending on what script you're running, something most free executors don't offer. The UI is clean and modern, not the typical ugly gray window you get with most free tools. It feels like a premium product.
The team behind it is small but active. Alex handles testing to make sure every update ships stable. There's a live Discord server where the team actually responds to tickets — not a dead server with no staff. You can get support, report issues,
Features
- good unc and sunc
- good ui
- best performace
- derzko executor for roblox can switch apis beetwen xeno and velocity but soon derzko api xeno and velocity
- derzko have ai so you can make roblox scripts with that
- fast execution
- 6+ settings
- very good discord comunity to help you
- keyled but also key have 2 days duration and even 1 month key for free giveways
- free executor
- best one