Does Apple Intelligence Work in Obsidian on Mac?

No - Apple Intelligence Writing Tools do not work in Obsidian on Mac. Obsidian is built on Electron, which renders its editor through Chromium's own layout engine, completely bypassing the macOS text services system that Apple Intelligence depends on. For writers, students, researchers, and PKM users who write hundreds or thousands of words per day in Obsidian, Charm is the alternative: it uses the Accessibility API and CGEventTap at the OS kernel level and provides real-time correction in every note you write.

Why doesn't Apple Intelligence work in Obsidian?

The Obsidian editor looks like a native Mac app but is built on Electron - the same framework that powers Slack, VS Code, and Discord. Electron wraps a web application inside a Chromium browser, meaning every text field you type into is an HTML element rendered by Chromium's layout engine, not an AppKit text field.

Apple Intelligence Writing Tools communicate with applications through the macOS NSTextInputClient protocol. This protocol connects macOS text services - autocorrect, spell checking, and now Apple Intelligence - to text fields in native apps. But NSTextInputClient only reaches AppKit and SwiftUI text views. Chromium's rendering pipeline is a completely separate system that macOS text services cannot penetrate.

This is the same underlying reason that standard macOS autocorrect and spell checking fail in Obsidian. Apple Intelligence inherits the same architectural limitation. No amount of system updates or settings changes can resolve this - it is a structural boundary between the two frameworks.

Obsidian has over 1 million active users. The average Obsidian power user writes 500-1,000 words per day inside the app - long-form notes, daily journals, research summaries, project documentation. That volume of writing benefits enormously from real-time correction, and Apple Intelligence provides none of it.

How do you get spelling and grammar correction in Obsidian?

There are a few approaches Obsidian users have tried, with varying success.

Obsidian's built-in spell checker provides basic underline-based spell highlighting in the editor. It flags possible errors with squiggly underlines, but it does not auto-correct - you must right-click each flagged word and select from a list. For writers producing 500+ words per day, this interrupt-driven workflow adds up to significant friction.

Community plugins like Languagetool Integrator offer more robust grammar checking by sending text to LanguageTool's servers (or a self-hosted instance) for analysis. This requires configuration and introduces a processing delay between writing and feedback. Privacy-conscious users should note that cloud-based plugins transmit your note content to external servers.

Charm works at the OS level and requires no Obsidian-specific setup. Because Charm uses CGEventTap at the kernel level - below Obsidian and Electron entirely - it corrects spelling and grammar as you type in any Obsidian note, in real-time, in under 200ms. There is nothing to configure inside Obsidian. All processing happens on-device, so note content never leaves your Mac.

Does Grammarly work in Obsidian?

No. Grammarly on Mac is a browser extension only. It operates inside Chrome, Safari, and Firefox tabs. Obsidian is a standalone desktop application - not a browser tab - so Grammarly has no access to its editor.

Some Obsidian users work around this by publishing notes to Notion or Google Docs for a Grammarly editing pass, then copying corrected text back. This is a workable but cumbersome workflow. If you want correction as you write in Obsidian - not after the fact - a system-level tool like Charm is the more practical approach.

Why Charm is the right writing tool for Obsidian users

Obsidian users tend to fall into a particular writing profile: high daily word counts, long-form prose, a mix of structured notes and freeform writing, and a preference for tools that stay out of the way. Charm fits this profile well.

Charm's Spells feature corrects spelling silently - no red underlines, no modal suggestions interrupting the writing flow. Corrections happen beneath the cursor within 200ms, invisible unless you look for them. For writers in a flow state, this unobtrusive approach preserves the writing experience that Obsidian is designed to support.

The Polish feature catches grammar issues at punctuation boundaries - subject-verb agreement errors, comma splices, tense inconsistencies. These are the errors that tend to slip through during fast note-taking and undermine clarity when notes are later reviewed or shared.

The Oracle feature offers word predictions in a subtle purple underline, accepted by pressing Tab. For writers building out note structures or finishing recurring phrases, this reduces keystroke count and keeps the writing moving forward.

Charm works in both Obsidian's Live Preview mode and Source Mode, and continues correcting across every other app you use throughout the day - Mail, Slack, Pages, Notes, any text field on your Mac.

Frequently asked questions

Does Apple Intelligence work in Obsidian?

No. Obsidian is built on Electron and renders its editor through Chromium's engine, bypassing the macOS text services layer that Apple Intelligence uses. This is the same reason macOS autocorrect does not work in Obsidian. Apple Intelligence has no architectural pathway into Electron-based apps.

Why doesn't macOS autocorrect work in Obsidian?

Obsidian is built on Electron, which renders text through Chromium's own engine rather than Apple's AppKit framework. macOS autocorrect communicates via the NSTextInputClient protocol, which only reaches native AppKit text fields. Chromium-based text fields are completely invisible to this protocol.

What is the best spell checker for Obsidian on Mac?

Charm is the most effective real-time spelling and grammar tool for Obsidian on Mac. It operates at the OS kernel level using the Accessibility API and CGEventTap, reaching Obsidian's Electron-based text fields where Apple Intelligence and standard macOS tools cannot. Corrections appear in under 200ms as you write.

Does Charm work in Obsidian's markdown editor?

Yes. Charm works in Obsidian's editor in both Live Preview and Source Mode. Markdown syntax characters are left untouched - only natural language prose is corrected. Charm's Spells feature fixes spelling silently, Polish addresses grammar, and Oracle offers word predictions via Tab completion.

Can I use Grammarly with Obsidian?

No. Grammarly on Mac is a browser extension only. It works in Chrome, Safari, and Firefox - not in desktop applications like Obsidian. For grammar correction in Obsidian, Charm is the practical alternative: it runs at the OS level and requires no app-specific configuration.