Launching today
Display Dimmer
A Windows brightness slider for external monitors.
4 followers
A Windows brightness slider for external monitors.
4 followers
A Windows utility for controlling external monitor brightness and contrast, with DDC/CI hardware control, gamma fallback, schedules, app rules, global hotkeys, and multi-monitor support. Free to start, with optional Pro features. For a limited time, Product Hunt users can claim a free Display Dimmer Pro promo code by entering the Product Hunt code here: https://displaydimmer.com/producthunt The page includes Microsoft Store redemption instructions.
I built Display Dimmer because controlling external monitor brightness on Windows was way more annoying than it should be.
My own monitor setup was a bit of a mess. One display worked fine with DDC/CI hardware brightness, one would briefly disconnect and reconnect after certain DDC commands, and another stopped responding to DDC when HDR was enabled. I couldn’t find a brightness control utility that handled my setup reliably, so I decided to develop my own.
I didn’t really want a fancy app at first. I just wanted my monitors to get dimmer without reaching for the physical buttons, and I wanted brightness control to keep working even when DDC/CI wasn’t available.
Display Dimmer grew from that. It uses DDC/CI where it works, falls back to GPU gamma dimming when it needs to, and adds the features I actually wanted day to day: per-monitor controls, all-displays adjustment, schedules, app rules, hotkeys, and linked display groups.
The goal is still simple: make external monitors easier to control on Windows, especially for real setups that are not always perfect.
I’m also working on a local CLI/API for scripts and automation, so sensors, Stream Decks, scheduled scripts, and small hardware projects can control brightness through Display Dimmer instead of talking to monitors directly. If that sounds useful, I’d love to hear what you’d want to build with it.
For a limited time, Product Hunt users can claim a free Display Dimmer Pro promo code here:
https://displaydimmer.com/producthunt
Use code: PRODUCTHUNT
The page includes Microsoft Store redemption instructions.