Adjust line height, letters & words spacing

Stop straining your eyes to see what’s on your screen. Adjust letters and words spacing on any website or pdf to suit your needs and make reading online easier with Helperbird. Available on Chrome, Edge, Firefox, iPad, and iPhone.

Tell me more about this feature

Have you ever thought,“The text here sure is tricky to read. Wonder when they made it so small?”

It’s not just the need for reading glasses that can make you wish the words on your display were
bigger. Well with Helperbirds adjust feature, you can adjust letter, word, and line-height spacing.


Quickly adjust font size, font style, and line spacing on websites.

Automatic style adjustment on your saved favorite sites.

Clutter-clearing power tools to remove distracting multimedia (images, videos, fancy backgrounds)

More features


Highlight or annotate web pages, documents, pdfs, ebooks and more to improve research and study.

Letters & Words spacing

Adjust letter and word spacing, font size and line-height according to your needs.

Image & Alt descriptions

Show Alt & Image descriptions on mouse over.

Analyze text

Find the amount of letters, characters and words in seconds.

Auto scroll

Auto-scroll on any website and save it in three different modes; slow, medium and fast.

Reading list

Helperbirds reading list helps you with Organization, Syncing websites to read later.

Color blindness

Color blindness features including emphasize Links and adding stroke to text. More coming

Cursor options

Choose between different cursor sizes; extra large, large, normal and small.

English Dictionary

Dictionary app by Helperbird allows you to easily lookup the meaning of any English word.

Document editor

Create, edit and delete documents in a full editor. Export and import to Google docs, Markdown and more.

Font sizes

Change the font sizes of any website or document.


Helperbird gives free translation support to any website, PDF or app.

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