Blog · Tools & Apps
Microsoft Immersive Reader for dyslexia — a practical guide
Microsoft Immersive Reader is one of the most capable dyslexia support tools available — and it costs nothing beyond what most people already pay for Word or a Microsoft 365 account. It is also one of the least-understood tools in that ecosystem. Many dyslexic readers know it exists inside OneNote or the Edge browser, open it once, change the font size, and close it. That's leaving most of its value on the table.
This guide covers what Immersive Reader actually does, which settings move the needle most for dyslexic readers, where the tool works (and where it doesn't), and what to reach for when you need something it can't provide.
What is Immersive Reader?
Immersive Reader is a reading mode originally built by Microsoft Research and first released in 2016 as part of OneNote. It has since been embedded across the entire Microsoft 365 suite and licensed to third-party educational platforms. You'll find it in Word, OneNote, Outlook on the web, Teams, SharePoint document libraries, Microsoft Edge, and a growing number of learning management systems such as Canvas and Moodle.
Its core idea is straightforward: strip away the interface noise, reformat the text into a narrower column with generous spacing, and layer in a set of tools designed specifically for readers who struggle with standard page layouts. The underlying content doesn't change — you're not editing anything — you're just viewing it through a different rendering layer.
That distinction matters. Immersive Reader is best understood as a reading mode, not a document editor. It's the equivalent of putting a transparency overlay on top of a printed page: you see the text differently, but the page itself is untouched.
Where to find it
The entry point varies by application, but it's consistently discoverable once you know what to look for:
In Microsoft Word (desktop or browser): open the View tab and select Immersive Reader. The document enters a full-screen reading mode. You exit by pressing Escape or clicking the X in the top-left corner.
In OneNote: open any page, go to View, click Immersive Reader. Same behaviour as Word.
In Outlook on the web: open an email, then select the three-dot menu in the top-right corner of the message. Look for Immersive Reader in the dropdown. This works for both received and sent mail.
In Microsoft Edge browser: navigate to any article page and click the open-book icon that appears in the address bar when Edge detects readable content. This is Edge's "Reader view", which is powered by the same Immersive Reader engine. If the icon doesn't appear, the page is probably too dynamic for the parser to extract clean text. For those pages, see the section on limitations below.
In Teams: in a Teams channel or chat, hover over any text message and click the three-dot menu, then select Immersive Reader. This makes Teams messages significantly more comfortable for people who struggle with its dense chat layout — a use case that often gets overlooked. If you read Teams heavily, this alone is worth knowing about.
The settings that matter most for dyslexia
Once you're inside Immersive Reader, the controls appear at the bottom of the screen. There are four main panels: Text Preferences, Grammar Options, Reading Preferences, and Read Aloud. Most readers with dyslexia will spend their time in the first and third.
Text Preferences
Font size — the slider here runs from about 14 pt to 36 pt equivalent. For most adults with dyslexia, a comfortable starting point is around 20–22 pt; larger than default but not so large that you're constantly scrolling. See our article on best font size for dyslexic adults for the reasoning behind this range.
Font — Immersive Reader offers a small font menu: Calibri, Sitka, and, depending on the application version, OpenDyslexic. The OpenDyslexic option is the most useful for readers whose dyslexia involves letter rotation or confusion between b, d, p, and q. Calibri is a solid default for readers who don't need OpenDyslexic specifically — it's humanist, well-hinted, and comfortable at larger sizes. Sitka is designed for extended reading at small print sizes and is a reasonable alternative, though its serif letterforms suit some readers and bother others.
Spacing — this toggle increases letter spacing, word spacing, and line height simultaneously. It maps to the typographic adjustments with the strongest evidence base for dyslexic readers. Research by Zorzi and colleagues in 2012 found that letter spacing increases of roughly 0.15 em significantly improved reading accuracy in a group of Italian school-age readers with dyslexia. The British Dyslexia Association's style guide similarly recommends 1.5 line height minimum. Immersive Reader's spacing toggle approximates both of these recommendations in one step. Turn it on. This is probably the highest-value single setting in the whole tool. For a deeper look at why these adjustments help, see our guide on line and letter spacing for dyslexia.
Background colour — Immersive Reader offers a set of preset background tints: white, sepia, light yellow, light green, light blue, and dark (near-black). For readers who experience visual stress — a sensitivity to high-contrast black-on-white text — switching to sepia or light yellow often reduces the "shimmer" or "washing out" effect some people describe. There's no universally correct colour; the one that feels least effortful to you is the right one. Our article on background colours for dyslexia covers the research behind tinted backgrounds in more detail.
Reading Preferences
Line Focus — this is Immersive Reader's most distinctive feature. It dims everything on the page except the line (or three lines, or five lines) you're currently reading. The effect is similar to a physical reading ruler or line guide, except it follows the text as you scroll. For readers who frequently lose their place or skip lines — a common complaint in dyslexia driven partly by poor return-sweep accuracy — Line Focus can make a material difference. Many readers find three-line focus the most comfortable: you see enough context to understand what comes next, but the majority of the text is visually quietened. Our guide to reading rulers and line focus in Chrome covers similar tools for the general browser.
Syllable breakdown — this option inserts a visible dot between syllables in each word: syl·la·ble break·down looks like this. It's primarily useful for younger readers who are still developing phonological decoding skills, or for adults reading in a language they're still learning. For fluent adult readers, syllable dots often add visual clutter without much benefit. Try it on a paragraph and notice whether you read more smoothly or whether your eye keeps snagging on the dots.
Grammar Options
This panel lets you colour-code nouns, verbs, adjectives, and adverbs in different hues. The idea is to help readers parse sentence structure more quickly. In practice, the grammar colouring is more useful for language learners and students studying writing structure than for dyslexic readers focused on comprehension speed. If parsing dense text tires you because you're rereading sentences to understand who's doing what, the noun/verb colouring can help with that specific issue. For most dyslexic adults reading everyday content, it's a feature you'll enable once out of curiosity and then leave off.
Read Aloud
Immersive Reader's Read Aloud feature plays back the text in a synthesised voice, with word-by-word highlighting as each word is spoken. The default voice quality is adequate on Windows and quite good on macOS (which uses the system's neural TTS voices). You can adjust reading speed and choose from multiple voice options. Read Aloud is particularly useful when reading longer documents: listening while following the highlighted words combines the spatial anchoring of visual reading with the phonological input of audio, which some readers with dyslexia find significantly reduces the effort of reading long-form text. It's also useful for catching words you've been misreading silently for years — the audio often makes the misparsing obvious.
Recommended starting configuration
Font size: 20–22 pt equivalent
Spacing: On
Background: Sepia or light yellow
Line Focus: 3 lines
Read Aloud: On for long documents; Off for short messages
Syllables: Off unless you're reading in a second language
Grammar colours: Off unless sentence parsing is your specific difficulty
Save these as your defaults once — in Word and OneNote, Immersive Reader remembers your last settings each time you open it. In Edge Reader View, settings also persist across sessions.
Where Immersive Reader works well
| Application | How well does Immersive Reader work? |
|---|---|
| Word (desktop) | Excellent. Full feature set, OpenDyslexic available, reads complex documents cleanly. |
| OneNote | Excellent. Particularly useful for students who store lecture notes and study material here. |
| Outlook web | Good. Works for plain-text and simple HTML emails. Heavily formatted newsletters may not parse cleanly. |
| Teams messages | Good for individual messages. Not available for threaded views or entire channel histories. |
| Edge browser (articles) | Good on article-style pages. Fails silently on dynamic or JavaScript-heavy pages (dashboards, SPAs). |
| SharePoint documents | Available in Word Online view; not available in native SharePoint page layouts. |
Where it falls short
Immersive Reader has three significant limitations that are worth knowing before you rely on it.
It only works inside the Microsoft ecosystem. If you spend your working day in Google Docs, Notion, Slack, or any non-Microsoft web application, Immersive Reader is simply not there. Edge's Reader View helps on article pages, but it doesn't activate on web apps. For everything outside the Microsoft bubble, you need a different approach — typically a browser extension that overrides fonts and spacing site-wide. That's the gap that LexiFont is designed to fill: applying your preferred dyslexia-friendly font to every website in Chrome, regardless of what the site's stylesheet says.
The font options are narrow. Three fonts — Calibri, Sitka, and sometimes OpenDyslexic — is a limited menu. If your reading sweet spot is Atkinson Hyperlegible, Lexend, or a combination of those with custom letter spacing, Immersive Reader can't give you that. For broader font choice across websites, see how to change the font on any website in Chrome.
Edge Reader View is patchy on dynamic sites. Reader View works on straightforward article pages — news, blogs, Wikipedia, static documentation. It doesn't work on Twitter/X, Reddit's new layout, most web apps, or any page that requires JavaScript to load the text. If you try to open Reader View on a page and the icon doesn't appear in the address bar, the page has failed the content-detection test. You'll need an extension-based approach for those sites. For some platform-specific examples, see our guides on reading Reddit with dyslexia and reading Slack with dyslexia.
Using Immersive Reader alongside other tools
Immersive Reader is not an either-or choice. Many readers use it selectively — activating it when they open a long Word document or a dense email — while relying on browser-wide font overrides for everything else. That layered approach makes sense. Immersive Reader gives you the deepest feature set within Office apps; a font-override extension covers the rest of the web.
If you have a Microsoft 365 subscription, a practical daily workflow might look like this: Immersive Reader in Word and Outlook for document-heavy work; LexiFont Pro in Chrome for everything browser-based; Read Aloud enabled in both contexts for longer reads. Each tool covers the other's blind spots.
A note on institutional access. If you're a student, Immersive Reader is almost certainly available to you at no cost through your institution's Microsoft 365 subscription. Many students with dyslexia are never told it exists — they're given a PDF reader and a separate TTS app and told to manage. If you're in that situation, open OneNote on any device, paste in a chunk of your lecture notes, and open Immersive Reader. The combination of font override, spacing, line focus, and Read Aloud in one interface is difficult to beat for study contexts. Ask your disability services office if they can walk you through the setup — many have resources specifically for this.
Immersive Reader vs dedicated reading extensions
Immersive Reader's advantage is integration: it's already inside the apps where you work, it requires no installation, and its settings persist. Its disadvantage is scope: it only activates where Microsoft has embedded it, and the font selection is limited to what Microsoft has licensed.
Dedicated reading extensions work the other way. A browser extension like LexiFont has no context about which document you're reading — it doesn't know you're in a Teams message versus a news article. But it applies your font and spacing settings to every website without exception, covering the long tail of sites that Immersive Reader's Reader View can't parse. The extension approach also lets you choose from a wider set of fonts, including OpenDyslexic, Lexend, and Atkinson Hyperlegible, and apply custom line-height and letter-spacing values that go beyond what Immersive Reader's spacing toggle does.
For ADHD readers specifically — who often find the combination of font control and line focus most helpful — the two tools complement each other well. See our article on reading tools for ADHD for a fuller picture of what the research says about which interventions help with attention and reading stamina.
The bottom line
If you're a dyslexic reader and you work regularly with Microsoft Office documents or Microsoft 365 apps, Immersive Reader is worth spending 20 minutes configuring properly. The Line Focus, spacing toggle, and Read Aloud combination in particular are genuinely effective for long-form reading, and they cost nothing if you already have a Microsoft 365 subscription.
Where it falls short — outside the Microsoft ecosystem, on most websites, anywhere you need broader font choice — a browser extension fills the gap. The two tools together cover most of a working adult's reading environment.
Try LexiFont Pro — apply dyslexia-friendly fonts to every website in Chrome, from $14.99 one-time