What Is Custom Resolution Utility (CRU) and What Is This Website For?

Updated

Custom Resolution Utility (CRU) is a small Windows tool by ToastyX that edits a monitor's EDID—the data block in which the display declares which resolutions and refresh rates it supports. By changing that data, you can add resolutions or refresh rates Windows does not normally offer, remove unwanted modes, or adjust FreeSync settings. The site customresolutionutility.dev is a download and installation guide page for CRU, currently listing version 1.5.3 (533 KB). It is aimed at users who want to unlock hidden modes on a monitor or GPU, tune an ultrawide or high-refresh display, or fix problems such as flickering, incorrect screen size, or graphics-card-specific display issues.

What CRU actually changes

CRU is an EDID editor, not a control panel for the graphics driver. It shows how the connected monitor's resolutions are currently defined and lets you add, edit, or delete those definitions, then apply the override so Windows and the driver see the modified display data.

  • Works with: AMD and NVIDIA graphics cards, and Intel GPUs when the correct driver is installed.
  • Typical uses: adding a resolution or refresh rate the monitor supports but Windows hides, removing modes you never use, adjusting FreeSync settings, and correcting flicker or wrong screen sizing.
  • Not a fix-all: because it edits display data rather than rendering settings, results depend on what the monitor and GPU can actually handle.

Who it is for

CRU suits users who have a specific display goal and are comfortable with a low-level utility:

  • You have an ultrawide or high-refresh monitor and want a mode Windows does not list.
  • You want to trim the mode list to the ones you use.
  • You are troubleshooting flicker, incorrect screen size, or display behavior tied to a particular graphics card.
  • You use DisplayPort-to-HDMI adapters and need to manage HDMI handling or the TMDS clock limit.

If you only want to change brightness, scaling, or color in normal use, the standard Windows and GPU control panels are the simpler route.

System requirements listed on the site

Requirement Detail
Operating system Windows Vista to Windows 11 (Windows XP does not support EDID overrides)
Graphics card AMD/ATI or NVIDIA with the correct driver installed; the Microsoft Basic Display Adapter driver will not work
Intel graphics Supported with the right drivers; newer Intel GPUs need the latest drivers, 6th-gen (Skylake) uses Intel Graphics Driver for Windows [15.45], and 4th/5th-gen (Haswell/Broadwell) need the corresponding Intel driver

Laptops with switchable graphics are listed as supported when the correct drivers are present.

How to get it

The site provides a direct download of the latest version plus links to older versions, followed by a step-by-step install guide. The page describes CRU as safe, free, and easy to use, but it does not publish pricing terms or account/login requirements—treat the download as the documented route and check the version number (1.5.3 at the time of the page) before installing.

Practical caveats

  • Keep a way to revert: an EDID override that the monitor cannot handle can leave you with a blank or unstable picture, so know how to reset the display data before applying changes.
  • Driver matters: the tool depends on a proper AMD, NVIDIA, or Intel driver, so update or reinstall the driver first if CRU does not detect your display correctly.
  • Expect monitor limits: CRU exposes modes; it does not create capability the panel or GPU lacks.