How To Make Slack Dark Theme

How To Articles

Slack is a well-known team collaboration platform that facilitates effective communication and collaboration. An effective method to personalize your Slack workspace is by applying a dark theme. As someone who appreciates dark themes, I will assist you in the steps of creating a dark theme for your Slack workspace.

Before we dive into the steps, let me tell you why I love dark themes. Dark themes not only look sleek and stylish, but they also help reduce eye strain, especially when working in low-light environments. Plus, they just have a certain aesthetic appeal that I can’t resist.

Now, let’s get started with making your Slack workspace dark:

Step 1: Install a Slack theme changer browser extension

The first thing you’ll need is a browser extension that allows you to customize the appearance of websites, including Slack. There are several available extensions for different browsers like Chrome, Firefox, and Safari. I personally use the “Stylus” extension for Chrome.

To install the extension, simply go to the extension store for your browser and search for “Slack theme changer” or “Stylus.” Once you find the extension, click on the “Add to Chrome” button to install it.

Step 2: Find a dark theme style

After installing the Slack theme changer extension, you’ll need to find a dark theme style that you like. There are many pre-made styles available online, created by fellow Slack users. These styles are essentially snippets of CSS code that change the look and feel of Slack.

A great place to find dark theme styles is the Slack Themes website. Browse through the different styles and find one that resonates with your personal taste. Remember, you can always customize the style later if you want.

Step 3: Apply the dark theme style

Once you’ve found a dark theme style that you like, it’s time to apply it to your Slack workspace. Here’s how:

  1. Open Slack in your browser and click on the Slack theme changer extension icon.
  2. Select the option to “Create New Style” or “Add New Style.”
  3. Give your style a name, something like “My Dark Theme.”
  4. Paste the CSS code of the dark theme style you found into the code editor of the extension.
  5. Click on the “Save” button to apply the style.

Voila! Your Slack workspace is now sporting a dark theme. Take a moment to admire the stylish new look.

One thing to note is that the dark theme may not be applied instantly to all parts of Slack. Sometimes, you might need to refresh the page or restart your Slack application for the changes to take full effect.


Customizing your Slack workspace with a dark theme is a fun and easy way to personalize your collaboration experience. By following the steps outlined in this article, you’ll be able to transform your Slack into a sleek and eye-friendly environment.

Remember, dark themes not only look cool, but they can also help reduce eye strain, especially during late-night work sessions. So go ahead, give your Slack workspace a makeover and enjoy the benefits of a dark theme.