Skip to main content

Find a help guide

All help guides

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.

Jump to the steps
On this page

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 the arrow button next to Text settings to open it.

A panel will appear with all of the text options in one scrollable list. This is where you will find the line height option.


Step 5: Turn on Line Height

In the Text settings panel, scroll down until you see Line spacing.

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

Text settings with Line spacing enabledView full-size image (opens in a new tab)


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.

Printed from the Helperbird Help Center · Updated September 22nd, 2026

Questions? We are happy to help — helperbird.com/support

A few guides for your next step.

All help guides

Reviews from the Chrome Web Store, Firefox Add-ons and G2

Join over 1,000,000 people who use Helperbird every day.

supporting a range of learning di...

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 SmithHelperbird user
It's just a one-stop solution if I want to customize my page. With very good UI design.
Verified G2 reviewerVerified User in Design
This works and it makes everything so much easier to read! Thank you so much and i will keep posted if i do run into any issues!
Jay O'BellHelperbird user
Helperbird logo: a stylized owl with large round yellow eyes and a beige face.

Download Helperbird

Text to speech, dyslexia fonts, reading rulers, color overlays, and 44 more.

Free to add, and the everyday tools stay free. Works in Chrome, Edge, Firefox and Safari.