E-paper mode for Mac,
no new monitor required

What a real e-ink monitor costs

Monitors built on actual e-ink or e-paper panels, from makers like Dasung and Onyx Boox, run from roughly $450 to $1,100. What you get for that money is real: a reflective surface that looks like paper under any light, no backlight glare, and a screen that is genuinely restful to read for hours.

What you give up is real too. Refresh rates are slow enough that video and fast scrolling smear or ghost. Color is limited or absent entirely. Most are a second monitor you plug in for reading and writing, not a replacement for your main display. That is a reasonable trade for some people and not for others, and it is a decision worth making with the real tradeoffs in view rather than a marketing page.

What Nox does instead

Nox is a $5 menu bar app that turns your Mac's own screen grayscale at the display gamma level, not with a colored overlay sitting on top. The preset is called E-Paper, one of 12 built-in filters, and its gamma curve is shaped to feel closer to a printed page than a flat desaturation.

• One click or a global shortcut turns it on, from the menu bar.
• Combine it with the Dimming and Black Point sliders to soften harsh contrast further.
• Custom presets can keep the grayscale look while you adjust everything else to taste.
• Pause or schedule it: 15 minutes, 1 hour, until morning, custom times, or sunset to sunrise.
• Per-display control, so a second monitor can stay in full color while your main screen goes paper-like.

Side by side

What software cannot do

Being direct about this matters more than selling past it: an LCD screen emits its own light through a backlight. E-ink is reflective, it shows you ambient light bouncing off a physical surface, the way paper does. No amount of gamma reshaping changes which one your Mac's panel is. Nox's E-Paper preset narrows the visual and comfort gap between the two; it does not close it. If what you want is a screen that looks and behaves exactly like paper under a reading lamp, and you use it heavily enough to justify the cost, a dedicated e-ink monitor is still the more honest answer.

Where Nox fits is the much larger set of days in between: when you want less visual noise on the screen you are already using, when a laptop is your only display, or when you want to try the paper-like look before spending hundreds of dollars on separate hardware. It is also worth reading in the context of Nox's other purpose; the app's research-based spectral presets are built for light sensitivity and photophobia, and E-Paper sits alongside them as the calmest, lowest-stimulation option of the twelve.

What Nox changes on your Mac

Nox is a menu bar app for macOS 14 and later, downloaded as a signed DMG from this site. While running, it writes to the display's gamma tables through the standard macOS display APIs. It installs no kernel or system extensions and requires no account. Toggling the filter off or quitting Nox restores full color immediately. To uninstall, quit Nox and move it from Applications to the Trash. Details on data handling are in the privacy policy; support is support@getnoxapp.com.

Frequently asked questions

What is e-paper mode on a Mac?

It is a software filter that reshapes your Mac's display gamma into a flat, paper-like grayscale, instead of the backlit colors a screen normally shows. Nox ships this as a built-in preset called E-Paper, one of 12 presets, that you can combine with dimming and black point control.

How is this different from buying a dedicated e-ink monitor?

A dedicated e-ink monitor is a separate reflective display, typically $450 to $1,100, that trades away fast refresh rates and color for a genuinely paper-like, low-glare surface. Nox is $5 software that reshapes the screen you already own. It gets you closer to that reading feel without new hardware, but it cannot replicate a reflective panel on an emissive one.

Can I turn e-paper mode off instantly when I need color?

Yes. Toggle it from the menu bar or a global keyboard shortcut, or pause it for 15 minutes, 1 hour, or until morning. You can also schedule it for set times or sunset to sunrise, so it turns on and off without you thinking about it.

Does Nox change my Mac permanently?

No. Nox adjusts the display gamma tables only while it runs. Toggling the filter off or quitting the app restores full color immediately. Uninstalling is quitting Nox and moving it from Applications to the Trash.