Blog · Browser accessibility

Dyslexia-friendly Microsoft Edge — Immersive Reader, font controls, and what extensions add

11 min read · July 23, 2026

Microsoft Edge ships with more dyslexia-relevant features than almost any other browser — and most of them sit one keyboard shortcut away from the page you are already reading. The problem is that they are scattered across two different reading modes, three settings menus, and a handful of toolbar icons that are easy to miss. This guide maps them all out and explains which ones actually matter for dyslexic readers.

Why Edge is worth configuring if you have dyslexia

Edge is the default browser on every modern Windows installation. Millions of dyslexic people use it daily without adjusting a single setting, reading in whatever font the website chose — which is usually a small, tightly spaced system default chosen for aesthetics rather than legibility.

That is worth fixing. Unlike Chrome, which offloads all reading assistance to extensions, Edge has genuine built-in tools: Immersive Reader (a full reading-mode environment with its own font and spacing controls), Read Aloud (a text-to-speech engine directly in the browser), Grammar Tools (syllable highlighting and parts-of-speech colouring), and Line Focus (a reading guide that highlights one to three lines at a time). None of these require installing anything.

That said, the built-ins have real limits. They do not work on every page, they cannot override the font on web apps like Gmail or Reddit, and some features are buried under a menu that most users never open. Extensions fill the remaining gaps. This guide covers both.

If you are setting up a full Windows environment for dyslexia, the OS-level settings in our Windows dyslexia setup guide are a useful complement to what follows.

Immersive Reader — the most useful built-in

Immersive Reader is Edge's reading mode. When you activate it on a news article, Wikipedia page, or blog post, Edge strips out the navigation bars, advertisements, sidebars, and visual noise, and presents only the article text in a clean column. More importantly for dyslexic readers, it then lets you change the font, text size, line spacing, and background colour of that stripped-down view.

How to open it

Press F9 on any article page, or look for the small book icon that appears on the right end of the address bar when Edge detects an article. Not every page triggers it — it works best on news sites, Wikipedia, and long-form blogs. On web apps (Gmail, Notion, Reddit threads), the icon will not appear and F9 does nothing.

Text preferences inside Immersive Reader

Once you are in Immersive Reader, click the Text preferences button (the icon that looks like a capital A with a smaller a beside it). You get:

Font family. The options are Calibri, Sitka, Verdana, OpenDyslexic, Garamond, and a handful of system fonts. OpenDyslexic is included natively — no third-party extension needed. If you have never tried it, this is the fastest way to see whether the weighted-bottom letter shapes help you. Our deeper look at OpenDyslexic in Chrome explains exactly what the font is trying to do and for whom it tends to help.

Text size. A slider from small to large. For most dyslexic adults, 18-22px is a comfortable body-text size. The slider does not show pixel values, but "medium-large" on the Immersive Reader scale lands roughly there.

Spacing. Adds letter spacing and word spacing incrementally. The research on spacing is fairly consistent: slightly wider than default tends to help dyslexic readers, with diminishing returns after a certain point. See our article on line spacing and letter spacing for dyslexia for the evidence behind those numbers.

Page theme. Changes the background colour of the reading column. Options include white, sepia, light grey, and black (dark mode). Sepia — a warm off-white — is the most commonly preferred alternative to pure white for readers with visual stress. If you find white backgrounds harsh, this is the setting to change first. For a fuller treatment of background colour choices, see our article on background colours for dyslexia.

Grammar Tools

Grammar Tools is a sub-panel inside Immersive Reader. It does two things:

Syllable breakdown. Inserts a subtle separator between syllables in each word — "sep·a·ra·tor," "im·mer·sive," and so on. For readers who sound words out (common in dyslexia), this can reduce the effort of parsing unfamiliar vocabulary. The separators are light enough that fluent readers can ignore them while struggling readers get a scaffold.

Parts of speech highlighting. Colours nouns, verbs, adjectives, and adverbs in different hues. This is aimed at English language learners but some dyslexic readers find that the colour coding helps them parse sentence structure when a sentence requires multiple re-reads.

Neither feature is transformative on its own, but syllable breakdown in particular is worth a ten-minute trial if decoding is part of your experience.

Line Focus

Line Focus is exactly what it sounds like: a reading guide that dims everything on the page except the current line (or the current one, three, or five lines — you choose). You advance it by clicking or pressing the down arrow.

For readers who lose their place mid-paragraph or find their eye jumping to other lines, Line Focus is one of the most practical features Edge offers. The equivalent in Chrome requires a dedicated extension. Our guide to reading rulers and line focus in Chrome covers the extension options if you are comparing.

Read Aloud

Read Aloud is Edge's built-in text-to-speech. Press Ctrl + Shift + U to start it, or right-click any selected text and choose "Read aloud selection." You can also start it from inside Immersive Reader.

The voice quality has improved significantly in recent Edge versions. The "natural" voice options — powered by Azure's neural TTS engine — are considerably clearer than the older robotic system voices, and Microsoft has added several new English accents. To access them: open Read Aloud, click the Voice Options button, and scroll past the default system voices to the "natural" ones at the top of the list.

Speed control is available in the same panel. Most proficient listeners find 1.2x-1.5x a useful speed for reading along with highlighted text; if you are using Read Aloud as a comprehension check rather than a primary reading method, 1.5x-2x lets you scan much faster.

What Read Aloud does well: articles, documents, emails opened directly in Edge (as PDFs or .eml files), and any page where Immersive Reader is available. What it does less well: web apps where text is in custom components (Notion, Slack, Google Docs). For those, a dedicated text-to-speech extension tends to be more reliable.

Edge's font settings — the ones most people miss

Immersive Reader's font controls only apply inside reading mode. For everything else — normal web pages with their original layouts — Edge has a separate setting in Settings > Appearance > Fonts.

Here you can set a default font, serif font, sans-serif font, monospace font, and a minimum font size. The minimum font size option is particularly useful: setting it to 14px or 16px prevents any website from rendering body text below that threshold, regardless of what the site's CSS specifies. Many sites use 13-14px body text, which is below what most accessibility guidelines recommend for readers with dyslexia.

The font you set here will apply on pages where the site has not explicitly locked its font choice with a high-specificity CSS rule — which, in practice, is most news sites, Wikipedia, and plain content pages, but not web apps like Gmail or Google Docs. Those lock their own fonts aggressively.

What Edge's built-ins still cannot do

After configuring everything above, you have a genuinely better reading experience on article-style content. But three categories of pages remain untouched:

Web apps. Gmail, Reddit, Outlook Web, LinkedIn, and most SaaS tools use component-based rendering and tightly scoped CSS that overrides browser font defaults. Immersive Reader will not activate on them. Edge's font settings will not apply. You are reading whatever the app decided to use.

Pages Immersive Reader rejects. E-commerce product pages, dashboards, forums, comment sections, and landing pages typically have enough non-article structure that Edge won't offer reading mode. The F9 shortcut does nothing, and the address bar icon stays hidden.

Font choice beyond what Immersive Reader offers. Inside Immersive Reader you can choose OpenDyslexic, Calibri, or Sitka. But if you prefer Lexend, Atkinson Hyperlegible, or any other font, you are out of options within Edge alone. Our article on the best fonts for dyslexia in 2026 covers why Lexend and Atkinson Hyperlegible are worth trying alongside OpenDyslexic.

Where a font-override extension fills the gap

LexiFont is a Chrome extension (which also runs in Edge, since Edge supports the Chrome Web Store) that overrides the font, size, and letter spacing on every page — including web apps. Unlike Immersive Reader, it does not strip the page layout. It applies the font you choose to the page as it already exists: Gmail stays Gmail, Reddit stays Reddit, but the text switches to OpenDyslexic, Lexend, or Atkinson Hyperlegible.

The practical workflow most Edge users land on is:

For long-form reading (articles, documentation, Wikipedia) — use Immersive Reader. It gives you the cleanest reading environment, the most control over spacing and background colour, and works well with Read Aloud. For daily web apps and anything Immersive Reader won't open — use LexiFont. It covers the pages Immersive Reader cannot touch.

The two don't conflict. Inside Immersive Reader, LexiFont steps back and lets Edge's built-in font choice apply; outside it, LexiFont takes over.

How to change the font on any website walks through the setup in more detail, including how to configure per-site overrides if you want different fonts on different sites.

Quick reference: Edge's dyslexia features at a glance

A practical starting setup for dyslexic Edge users

If you want a single, repeatable configuration to apply right now, here is one that covers most reading situations:

Step 1 — Set a minimum font size. Go to edge://settings/fonts, scroll to "Minimum font size," and set it to 14 or 16. This is a floor, not a default; it stops the worst small-text offenders without breaking sites that already use readable sizes.

Step 2 — Configure Immersive Reader defaults. Open any news article, press F9, go to Text preferences, and set your preferred font (try Sitka if you want something low-key, OpenDyslexic if you want maximum differentiation between letters), increase spacing one notch, and switch the theme to Sepia if pure white is harsh for you. Edge remembers these preferences across sessions.

Step 3 — Enable Read Aloud for long reads. The next time you open Immersive Reader on a long article, press the Read Aloud button and choose a natural voice. Set the speed to 1.2x if reading along with highlighted text; higher if you are skimming for comprehension.

Step 4 — Install LexiFont for everything else. On LexiFont Pro you can apply Lexend or Atkinson Hyperlegible to every page that Immersive Reader cannot reach, with per-site overrides for apps where you want to keep the default. The free tier covers OpenDyslexic on any site.

The combination of Edge's built-ins for long-form reading and LexiFont for web apps covers the full range of daily browser use without requiring a switch to a different browser or a heavy stack of extensions.

A note on Edge vs Chrome for dyslexic readers

Chrome has no equivalent to Immersive Reader, no built-in grammar tools, and no native line focus. Its Read Aloud equivalent requires an extension. On the built-in accessibility features alone, Edge is the more capable browser for dyslexic readers on Windows.

The trade-off is extension breadth: Chrome's extension ecosystem is larger, and some specialist reading tools exist in Chrome only. For most dyslexic users on Windows, the honest recommendation is to use Edge as your primary browser, configure the features above, and add LexiFont from the Chrome Web Store (which Edge can access). The reading experience on articles will be noticeably better than Chrome with no extensions.

If you are on a Mac or Chromebook and curious how the platform compares, see our Windows setup guide and the broader overview of reading tools for ADHD and attention difficulties, which covers cross-platform options.

Further reading

• Dyslexia-friendly Windows setup — OS-level settings that help
• Reader mode vs reading extensions for dyslexia — which is better?
• Dyslexia-friendly text-to-speech in Chrome — extensions that actually work
• Background colours for dyslexia — cream, grey, or blue?
• Best fonts for dyslexia in 2026 — a research-first guide