Ultra-Lean: Removes costly visual effects globally with zero-runtime overhead and per-site exclusions.
Universal Visual Governor is a ultra lean universal userscript designed to reduce visual complexity and rendering overhead on modern websites by removing costly visual effects that provide little functional value while subtly encouraging more efficient GPU-based rendering paths where supported by the browser.
The script runs entirely at document-start, allowing simplification to occur before most page rendering begins. Once the stylesheet is injected, the script performs no additional processing, resulting in effectively zero runtime overhead.
Globally removes the following visual effects:
backdrop-filter-webkit-backdrop-filterfilterbox-shadowtext-shadowAdditionally applies lightweight rendering optimization hints:
transform: translateZ(0) (encourages GPU compositing where applicable)will-change: transform, opacity (suggests browser layer promotion for smoother rendering)content-visibility: auto (reduces offscreen rendering cost for images)The removed effects are among the most expensive visual operations commonly found on modern websites.
| Feature Removed | Primary Benefit |
|---|---|
| Backdrop Blur | Reduced GPU compositing and blur passes |
| CSS Filters | Reduced GPU image processing |
| Box Shadows | Reduced shadow rasterization costs |
| Text Shadows | Reduced text rendering overhead |
| Optimization Hint | Primary Benefit |
|---|---|
| translateZ(0) | Encourages GPU layer compositing |
| will-change | Pre-allocates smoother animation/rendering layers |
| content-visibility: auto | Reduces layout + paint cost for offscreen images |
Because these changes are applied purely through CSS:
This project follows a strict performance-first design philosophy:
The objective is to reduce rendering complexity while preserving functionality and behavioral integrity, while optionally nudging the browser toward more efficient rendering pipelines.
Some websites intentionally rely on visual effects for their design language.
For maximum compatibility, users can exclude individual websites from simplification.
Excluded sites are:
GM_getValueThis script is entirely local.
It:
All processing occurs locally within the browser.
Designed to work safely across the overwhelming majority of websites.
This version intentionally avoids disabling animations or transitions, preserving:
Some applications that rely heavily on blur or shadow styling may appear visually simplified, including:
If desired, these sites can be excluded via the built-in menu.
After initialization:
The script remains completely idle after injecting its stylesheet.
Released under the MIT License.
You are free to:
Michael Stutesman