Most Mac users have been there: fourteen tabs open, three apps competing for attention, and a browser notification blinking somewhere in the corner. The screen becomes a visual argument, and the thing you actually need to focus on loses every time. Window dimming tools have existed for years to solve exactly this problem, and Ombrelle is the latest take on the concept, built by indie developer Lionel Guichard as a cleaner, more modern alternative to the long-standing HazeOver.
The pitch is simple. Your active window stays fully lit. Everything else on your Mac fades back. No timers, no blocklists, no daily distraction reports. Ombrelle just quietly dims whatever you are not using, automatically, every time you switch tasks.
It has picked up over 1,000 users in its first month, runs entirely on-device, requires no account, and costs $11.99 as a one-time purchase after a seven-day free trial. That combination of low friction and low price makes it worth a proper look.
Key Features of Ombrelle
Blur, Tint, and Glass Effects
Where HazeOver simply darkens background windows, Ombrelle gives you actual visual controls. You can apply blur, tint, a warm color wash, or a glass-style color overlay to everything behind your front window. The result feels closer to depth of field than a plain dimmer. It is subtle when you want subtle, and noticeable when your setup needs a stronger visual cue.
Focus, Flow, and Evening Presets
Instead of forcing you to tune sliders every time your working context changes, Ombrelle ships with three one-click presets. Focus is crisp and direct. Flow is softer. Evening warms everything down for late-night work sessions. You can also save your own custom settings into any of these slots. The whole point is fewer decisions while you are mid-task.
App and Display Exclusions
Some apps should never dim. A reference PDF on your secondary monitor, a music player you glance at occasionally, a terminal window you want to keep bright. Ombrelle lets you exclude specific apps and specific displays independently. That level of control is the main thing missing from older tools in this category, and it makes a real difference in multi-display setups.
Menu Bar Control, Nothing Else
There is no separate settings window to open and close. Everything lives in a single panel that drops down from the menu bar. You adjust blur intensity, switch presets, exclude an app, or toggle a display, then close it. The rest of the time, you do not think about it. That kind of restraint in the interface design is harder to pull off than it sounds.

How Sophie Used Ombrelle to Get Through a Difficult Writing Session
Sophie Marchand is a freelance copywriter based in Lyon who routinely works with six to eight browser tabs open alongside her writing app, a Slack window, and at least one Notion doc. At around 2:30 in the afternoon on a Tuesday, she sat down to finish a 1,200-word client brief that was already two days late. Every background window was lit at full brightness. She kept glancing at a half-finished Notion task list sitting just behind her Pages document.
She had tried Ombrelle the previous week but had been running it on default settings without thinking much about it. This time she opened the menu bar panel, switched to the Flow preset, and bumped the blur up slightly so the Notion window behind her document became visibly soft. She excluded Spotify so the now-playing bar stayed readable.
Within a few minutes, the background windows simply stopped registering as something worth looking at. She finished the brief in just under ninety minutes, which she described afterward as the cleanest writing session she had managed in weeks. The only change to her setup was that everything not named Pages had become visual background noise rather than a competing foreground element.
How Ombrelle Actually Works
Step 1: Download and Install
You download the app directly from the Ombrelle website. No App Store account needed, no sign-up form. You get a seven-day trial with full access to every feature. The app runs entirely on your Mac, with no data sent anywhere.
Step 2: Turn It On from the Menu Bar
Ombrelle lives in your menu bar. One toggle turns it on. From that moment, your active window stays bright and every inactive window dims according to your current preset. The fade happens automatically each time you switch focus.
Step 3: Adjust to Your Setup
Open the menu bar panel to pick a preset, fine-tune blur and tint levels, exclude any app you want to keep bright, or tell a secondary display to stay untouched. Most users spend about two minutes here on first setup, then leave it alone indefinitely.
Step 4: Forget It Is Running
That is the actual goal. Ombrelle is working when you stop noticing it. The developer puts it plainly: you will only really feel what it does the day you turn it off.

Pricing
Ombrelle is free to try for seven days, no credit card required upfront. After the trial, it is a one-time purchase of $11.99. That covers all future updates as well. There are no subscription tiers, no feature gates, and no account to manage. For a utility you run every single workday, that is a fair trade.
Worth Trying If Your Screen Feels Cluttered
Ombrelle is aimed at Mac users who already know they want window dimming but find existing tools either too basic or too dated. If you use HazeOver and wish you had more control over how the dimming looks, this is the direct upgrade. If you have never tried this category of app before, the free trial is low-risk enough to just install it and see. Head to ombrelle.app to download the trial and try it through a normal work session.