Skip to main content

How to Change the Font Size on Any Website

Learn how to increase or decrease the font size on any website using Helperbird. Make text larger for easier reading or smaller to fit more content on screen.

·

  • features
  • reading

What is the Font Size Feature?

Helperbird lets you change the size of text on any website. You can make text larger if it is too small to read comfortably, or make it smaller if you prefer more compact text.

The size change applies to all text on the page instantly. You can adjust it using a simple slider to find the perfect size for you.


Who is This For?

This feature is helpful for:

  • People with low vision who need larger text
  • Anyone who finds website text too small to read comfortably
  • People who get eye strain from reading small text
  • Students reading long articles or documents online
  • Anyone who wants more control over how websites look

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.

The Helperbird popup with Helperbird switched on, showing the quick actions grid and the All Features button


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.

The All Features list in the Helperbird popup, showing every feature in alphabetical order


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.

The All Features list scrolled to show the Text settings row and its Open button


Step 4: Open Text Settings

Click on Text settings to open it.

A panel will appear with all of the text options in a single list. This is where you will find the font size option.

The Text settings panel open in the Helperbird popup, showing the Font size control


Step 5: Turn on Font Size

In the panel, look for Font size. It has a yellow icon with an "A+" symbol.

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

The Font size toggle switched on in the Helperbird popup


Step 6: Adjust the Size

Once Font size is turned on, a slider will appear below the toggle. A bubble above the slider always shows the current size, and there is a minus button on the left and a plus button on the right.

Drag the slider to the right to make text larger, or drag it to the left to make text smaller. You can also click the minus and plus buttons to change the size one step at a time.

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

Tip: Start with a small adjustment and keep increasing until the text feels comfortable to read. Everyone has different preferences, so take your time to find the size that works best for you.

The Font size slider moved to 106.0


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 August 13th, 2026

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

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

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

I love the 50 natural languages

I have to admit, I have tried several other similar products which were awful. Helperbird is truly amazing! The font changes, colours, overlays, notes, text to speech and I love the 50 natural languages! 100% worth updating.
Ciarán HylandHelperbird user
I like the ease of use it. It feels me alot while surfing the web. I appreciate the developers for this wonderful app. Promotes easy readability.
Ajay G.Problem Trainer

The customizable features are a g...

This chrome extension is absolutely amazing. I'm a Primary school teacher and it helps children with a broad range of needs. It's so easy to set up. I love the way it syncs across devices so set up is seamless across all the children's computers. The customizable features are a game changer for allowing children to enjoy reading and accessing the web in our school. The best application I have ever seen for school children. Looking forward to trying the iPad application soon.
Luke MccarthyTeacher
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 43 more.

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