NoBloat Dimmer is a free Windows screen dimmer that lowers laptop and external monitor brightness below the normal minimum. Control every display together or adjust each monitor separately, with no account or tracking.
No installer bundle, account creation, or browser extension is required for the Windows application.
NoBloat Dimmer is portable, but its preferences are stored separately so they survive application updates.
%LOCALAPPDATA%\NoBloatTools\NoBloatDimmer. The folder contains settings.json.Dimming software needs an obvious escape route. The safety controls are documented before the download.
Dim the full setup together or tune individual monitors independently.
Focused sliders can be adjusted in predictable five percent steps from the keyboard.
Use Alt + Shift + 0 to restore every display if the screen becomes difficult to use.
Use full screen, resize freely, or choose Compact, Standard, and Spacious layout presets.
Use the stable official asset name and verify that every download comes from the NoBloatTools GitHub repository.
Portable, self-contained Windows x64 release.
Released July 9, 2026. Approximately 62.5 MB.
The release workflow prints a SHA256 hash before upload. The exact value must be copied from the official GitHub release description.
Compare the result against the SHA256 value published with the matching GitHub release. Do not use a hash copied from a mirror or third-party download page.
These are documented behaviors from the current source and release process, not generic warnings.
Windows may show an Unknown Publisher or SmartScreen warning because this beta is not code signed.
The app reduces perceived brightness with local display overlays. It does not alter monitor firmware or the physical backlight setting.
Full blackout remains unavailable if the global Alt + Shift + 0 emergency restore shortcut cannot register.
If Windows blocks the local settings file, the application continues with default settings rather than crashing.
The release checklist focuses on the controls most likely to affect usability and recovery.
Dragging, free resizing, full screen, rounded clipping, and layout presets.
Five percent slider steps, Quick Reset keys, and visible keyboard focus.
Blackout cycling and Alt + Shift + 0 emergency restoration.
The self-contained win-x64 ZIP is tested after publishing before upload.
A compact visual representation of the current global and per-display control model.
Transparent limitations are more useful than pretending early software is finished.
The current beta is not code signed. Download only from NoBloatTools or the official GitHub release page, verify the address before running, and use Microsoft Defender or another trusted scanner when desired.
The essentials, without a support maze.
No. The released Windows utility does not require an account for its core functionality.
NoBloatTools is designed around local control and data minimization. Ordinary preferences and controls remain on the device whenever possible.
The current beta is not code signed, so Windows cannot display a verified publisher identity. The Trust & Help page explains how to confirm you are using the official release.
Use the public GitHub issue tracker or email nobloattools@proton.me. Include your Windows version, display count, GPU, scaling settings, and the steps that caused the problem.
Voluntary contributions help fund code signing, testing, hosting, and long-term maintenance.