How to Change Line Height on Any Website

Learn how to adjust line height on any website for better reading comfort and accessibility Support for all learners and educators. Learn how to adjust line height on any website using Helperbird. Line height adds space between lines of text, making it easier to read without losing your place.

What is Line Height?

Line height is the vertical space between each line of text. When you increase line height, the lines spread apart more, giving text more breathing room.

For example, a paragraph with increased line height will have larger gaps between each row of text, making it easier to follow from one line to the next without accidentally skipping or rereading lines.


Who is This For?

This feature is helpful for:

  • People with dyslexia who lose their place between lines
  • Anyone who finds tightly packed text difficult to read
  • People with visual stress or eye strain
  • Students reading long articles or documents
  • Anyone who wants text to feel less crowded

Step 1: Open Helperbird

Click the Helperbird icon in your browser toolbar. It looks like a small owl and is usually in the top-right corner of your browser.

This will open the Helperbird menu.


Step 2: Open the All Features Section

Scroll down to the bottom of the Helperbird menu. You will see a section called All Features.

Click the arrow next to All Features to expand it and show all available features.


Step 3: Find Text Settings

Look through the list of features until you see Text settings.

It has a yellow icon with the letter "T" on it.


Step 4: Open Text Settings

Click on Text settings to open it.

A panel will appear with three tabs at the top: Text, Colors, and Border.

Make sure the Text tab is selected. This is where you will find the line height option.


Step 5: Turn on Line Height

In the Text tab, scroll down until you see Line height.

Click the toggle switch next to it to turn it on. The toggle will turn green when it is enabled.


Step 6: Adjust the Height

Once Line height is turned on, a slider will appear below the toggle.

Drag the slider to the right to increase the space between lines. Drag it to the left to decrease the spacing.

The changes will apply to the website immediately, so you can see the effect as you adjust the slider.

Tip: Line height works great together with letter spacing and word spacing. If text still feels cramped after adjusting line height, try increasing the other spacing options too.


Video Tutorial


Need Additional Help?

If you have any questions or run into any issues, please contact the Helperbird support team. You can reach us at Helperbird support. We are happy to help you get the most out of Helperbird.

What People Are Saying

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Helperbird is an excellent extension supporting a range of learning differences. Aside from providing many evidence-based dyslexia-assistive tools, the extension also functions as an easy-to-use, feature-rich web experience customization tool suitable to support a wide range of cognitive differences (i.e., color blindness and ADHD-related focus concerns, among others). Also, the developer is a very good person who supports the various learning-different communities in many ways, including by designing the free version of Helperbird to provide enough functionality to be beneficial to people who cannot afford to subscribe to the full-function version.

Kirk Smith

Kirk Smith

Helperbird user

It's helped me immensely with being able to focus and process words on any website

Emily Chan

Emily Chan

Helperbird user

A truly great extension! We installed this on all of our 200 Chromebooks across the 3 special schools i work in and it has greatly helped our students use technology to learn. It not only helps our dyslexic learners, but also our autistic and ADHD students by helping remove distractions and making the web a more accessible place. Support is fast and efficient, and updates are very regular with new features constantly being added!

Josh Sharrad

Josh Sharrad

Helperbird user

It an extension that makes reading easy while surfing the internet.

Mohammad F.

Mohammad F.

IT intern

So many useful features! This app is as helpful as it's name.

Courtney Hood

Courtney Hood

Helperbird user

I love Helperbird!!! It's very user friendly from someone who has learning challenges because of ADHD and Dyslexia.There are so many useful features and new updates.

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Entertainment Studio

Helperbird user

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