Version 1.1 · Native Windows utility

HDR SDR Brightness Assistant

Keep SDR apps comfortable while Windows HDR stays on. Set day and night SDR brightness, recover your preferred level automatically, and capture HDR screenshots that do not look blown out.

Two Windows HDR annoyances, one quiet tray app.

Built for OLED, QD-OLED, MiniLED, HDR monitors, HDR TVs, and HDR laptop panels where regular SDR apps can become too bright, too dim, or washed out after HDR is enabled.

Comfortable SDR brightness

Apply your preferred Windows SDR content brightness while HDR remains enabled for games, video, and supported apps.

Day and night settings

Use separate SDR brightness values, follow Windows Night Light, or rely on the built-in fallback schedule.

Automatic recovery

If Windows or another app changes SDR brightness, the tray app can restore your configured value.

HDR screenshots

Capture region or fullscreen HDR screenshots with native tone mapping, physical-pixel output, clipboard copy, PNG save, and annotations.

Native and self-contained

No bundled .NET runtime, service, driver, account login, or telemetry. Three native executables keep the portable package compact.

Store trial

The Microsoft Store version is a paid app with a full-feature trial and no subscriptions or in-app purchases.

HDR SDR Brightness Assistant settings in dark mode

Designed for daily use from the tray.

Pick comfortable SDR brightness values, preview the result, apply once, then let the app stay out of the way.

Tray menu with day and night brightness controls

Share HDR screenshots without the washed-out look.

Regular screenshot tools can turn HDR content into a pale or overexposed image. Version 1.1 adds a faster native workflow, latest-request screenshot replacement, fullscreen maximize, pointer-centered wheel zoom up to 8x, and middle-button panning for precise annotations.

HDR screenshot preview and annotation controls

FAQ

Does it change game HDR?

No. It targets Windows SDR content brightness while HDR is enabled, so HDR games and videos can stay HDR.

Does it need admin rights?

No. The app runs as a normal user app from the tray and does not install a driver or Windows service.

Does it collect analytics?

No. Settings stay local. The app does not require an account and does not include telemetry or third-party tracking.

Which languages are supported?

Auto, Simplified Chinese, Traditional Chinese, English, Korean, Japanese, Russian, and German.

Try it from Microsoft Store.

Install the Store version to use the full-feature trial, receive updates through Microsoft Store, and keep setup simple.