Nebula – Universal night mode and color customization for websites

Another day, another tweak. Nebula brings night mode for websites to your iPhone and iPad. Here’s how you can download and set it up on your Apple device.

How Nebula works

As you already know, system-wide dark mode tweaks such as NoctisXI fall short in several areas. And it’s for that reason that some tweak developers have started releasing night mode tweaks aimed at third-party apps like Instagram, Chrome, etc.

Nebula Cydia tweak is another similar tweak that brings a fully customizable night mode for websites to Apple devices running iOS 11. It is developed by Tommy Muir and Squ1dd13.

Just like Deluminator, Nebula works with all apps that let you browse websites or load web pages. That means you can use it not only with web browsers but also with apps like Cydia.

Here’s how it looks like in action on Safari, Google Chrome, and Firefox.

As you can see, it blends in really well with web pages in all popular browsers. You can also enable or disable the tweak using an easily accessible toggle (available only for Safari web browser).

Websites that use widgets may not blend in with the dark mode, however.


  • Enable (on) – Enables the functionality of the tweak.
  • Haptic on Toggle (on) – Enables haptic feedback whenever you toggle night mode on/off. This toggle is available only in Safari, not other browsers or apps.
  • Use Safari UI Darkmode (on) – Enables the stock dark mode interface of Safari. Use this option if your default browser is Safari.
  • Use Chrome UI Darkmode (on) – Enables the stock dark mode interface of Chrome. Use this option if your default browser is Google Chrome.
  • Background Color (#262626) – Defines the background color value. Remember, the default color values are just fine and should work well with all kinds of websites. Don’t alter them unless you know what you are doing.
  • Text Color (#EDEDED) – Defines the text color value.
  • Disabled in SpringBoard (on) – Disables night mode on Springboard. Enable this option if you use tweaks like Xen HTML or LockHTML since these tweaks use HTML widgets, which can conflict with Nebula’s night mode.

  • Disabled Sites – Blacklists websites and toggles night mode off when you open them. To add a website, tap the “+” button on the top-right corner, input the website’s URL and tap Done.

  • Disabled apps – Blacklists apps and toggles night mode off when you use them. To blacklist an app or game, simply toggle it on.

If you decide to use my settings, your dark mode setup will come out something like this.

Download Nebula

What I like the most about Nebula is its color scheme the night mode toggle. You can customize everything and create your own dark mode theme (true-dark or dark-gray) that suits your device.

There are a few hitches and glitches here and there; for instance, the blacklist may not work on your device and there’s a white flash before a web page loads fully.

But other than that, the tweak shines in all other departments and is an absolute must-have. Highly recommended.

Once you install it, be sure to disable the stock night mode or dark mode for your apps and browsers.

Nebula is available for download on Packix repo for $2.00. It is compatible with iOS 10-11.

Known issues and bugs

  • Web pages load with the default color theme before going dark.
  • Some users are reporting that menus aren’t displayed correctly or visible on certain websites.
  • Website blacklist isn’t working in version 1.0.0.

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