How to Get Autocorrect Working in Apple Notes

Apple Notes supports autocorrect natively on Mac, unlike browser-based or Electron apps that bypass the system spell checker. Notes is built on NSTextView, so macOS autocorrect is active by default - no extra setup required. That said, it only catches spelling errors. Grammar mistakes, contextual errors, and technical terms slip through. Charm adds real-time grammar correction and word prediction on top of what macOS already provides.

Does autocorrect work in Apple Notes on Mac?

Yes, and it works better in Notes than in most other apps. Apple Notes is a fully native macOS application built on NSTextView and NSSpellChecker - the same text infrastructure used by TextEdit, Pages, and Mail. This means the system-level spell checker is active by default, without any additional configuration.

This is meaningfully different from apps like Notion, Slack, VS Code, or any Electron-based tool. Those apps render text in a web view, which sits outside the macOS text stack entirely. Autocorrect in those contexts either does not work or works only partially. Notes does not have this problem.

To confirm autocorrect is active in Notes, go to System Settings > Keyboard > Text Input > Edit and check that "Correct spelling automatically" is toggled on. This is a system-wide setting - when it is enabled, it applies to Notes, Mail, Pages, and every other native app simultaneously.

You can also verify it is active specifically in Notes by opening Edit > Spelling and Grammar from the menu bar while Notes is in focus. "Check Spelling While Typing" should have a checkmark next to it. If it does not, select it to enable it.

What does macOS autocorrect miss in Apple Notes?

Spelling correction and grammar correction are different things, and macOS only does the former. The built-in spell checker compares each word against a dictionary and flags or silently replaces words that do not match. It does not understand sentence structure, grammar rules, or word context.

In practice, this means macOS autocorrect in Notes will catch a typo like "teh" and fix it to "the" - but it will not catch any of these common errors:

• Contextual word errors: "their" vs "there" vs "they're", "its" vs "it's", "affect" vs "effect" - all correctly spelled words that autocorrect treats as correct
• Grammar errors: subject-verb disagreement ("the results was strong"), incorrect tense, missing articles
• Proper nouns and technical terms: product names, brand names, medical terminology, and domain-specific jargon are regularly flagged as misspellings or left uncorrected
• Sentence-level mistakes: a missing word or repeated word ("the the") that doesn't produce a spelling error

Research on spell checker accuracy shows macOS autocorrect catches around 70% of spelling errors in everyday writing - a reasonable rate for common words, but one that leaves a significant gap for anything technical or contextually nuanced. Charm's ML-based correction model closes much of that gap by understanding context around each word, not just the word in isolation.

The macOS autocorrect in Notes also has no word prediction capability. It will not suggest how to complete a word or phrase as you type, which means there is no way to speed up repetitive writing or catch errors before they are fully committed.

How to add grammar checking and word prediction to Apple Notes

Charm is a native macOS writing assistant (requires macOS 14 Sonoma or later) that layers on top of the existing autocorrect system in Notes. It does not replace macOS autocorrect - it extends it. You get the built-in spell checker doing what it does, plus Charm filling in the gaps.

After installing Charm and granting accessibility permissions, three features become active in Apple Notes automatically:

Spells is Charm's enhanced spelling correction layer. It uses ML models trained on a much larger and more contextually diverse corpus than the macOS dictionary. Technical terms, proper nouns, and domain-specific vocabulary that macOS autocorrect rejects are handled correctly. Accuracy on everyday spelling is also meaningfully higher than the system default.

Polish is Charm's grammar correction feature. It analyses text at the sentence level, not just word by word. Subject-verb agreement, article usage, incorrect word choice, and contextual errors ("there/their") are caught and corrected in real time. This is the capability that macOS does not provide at all - and the one most users notice immediately when writing in Notes.

Oracle is Charm's word prediction system. As you type, Oracle surfaces completions for the current word or phrase. Press Tab to accept the suggestion and keep writing. This works in Apple Notes the same way it works in every other app on your Mac - no per-app setup, no extensions to install. Users who write long-form notes or frequent similar phrases find Oracle significantly cuts down on repetitive typing.

Because Charm works through macOS accessibility APIs rather than app-specific integrations, there is no difference between how it performs in Notes versus Mail versus any other native app. You configure it once in Charm's preferences and it runs everywhere.

How to configure autocorrect settings for Apple Notes

The primary autocorrect controls for Notes live in the system-level settings, not inside Notes itself. Here is the full path:

System Settings > Keyboard > Text Input > Edit (click Edit next to your current input source). From this panel you can toggle:

• "Correct spelling automatically" - the core autocorrect switch
• "Capitalize words automatically" - auto-capitalises the first word after a sentence-ending punctuation mark
• "Add period with double-space" - inserts a period when you tap the space bar twice

These settings are system-wide. There is no macOS setting to enable autocorrect only in Notes and disable it everywhere else.

Inside Notes, the Edit > Spelling and Grammar menu gives you more granular control. From there you can:

• Run Check Document Now to do a one-time spelling sweep of your current note
• Toggle Check Spelling While Typing to control real-time red underlines
• Toggle Check Grammar With Spelling to enable macOS's limited grammar flagging (note: this is less accurate than Charm's Polish feature)
• Open the Spelling Panel to see and navigate all flagged errors in the current document

If you want to use Charm in all apps except Notes, Charm supports per-app disabling from its menu bar icon. Open the Charm menu bar icon while Notes is the active app and select "Disable for Apple Notes". Charm will remain active everywhere else on your Mac. This is useful if you prefer the default Notes experience but want Charm's corrections in other contexts.

Frequently asked questions

Does autocorrect work in Apple Notes on Mac?

Yes. Apple Notes is a native app built on NSTextView, so it uses the macOS NSSpellChecker system the same way Mail and Pages do. Spelling autocorrect is active by default. Unlike Electron or browser-based apps, Notes has full access to the macOS text stack and does not require any workarounds to get autocorrect working.

How do I turn on autocorrect in Apple Notes?

Go to System Settings > Keyboard > Text Input > Edit and make sure "Correct spelling automatically" is toggled on. This is a system-wide setting that enables autocorrect in Notes and every other native Mac app at the same time. You can also check Edit > Spelling and Grammar inside Notes to confirm real-time checking is active.

Why does autocorrect miss grammar errors in Notes?

macOS autocorrect is a spell checker, not a grammar checker. It looks up each word in a dictionary and corrects clear misspellings - it does not analyse sentence structure or word context. Errors like "their vs there", subject-verb disagreement, or incorrect word choice are all invisible to it. For grammar correction in Notes, you need a tool like Charm.

How do I get grammar checking in Apple Notes?

Install Charm (macOS 14 Sonoma or later, $9.99 one-time). Charm's Polish feature adds real-time sentence-level grammar correction to Notes automatically - no per-app configuration needed. Its Oracle feature also adds tab-to-accept word prediction. Charm runs alongside macOS autocorrect rather than replacing it, so you get both layers of correction in Notes.