CodeMirror v6 Spell Checker

Simple spell checking for CodeMirror 6. It will underline in red any misspelled words. You may set up a list of ignored words. Works great in conjunction with other CodeMirror modes, like GitHub Flavored Markdown.

Install

Via npm.

npm install codemirror-v6-spell-checker --save

CodeMirror 6 Spell Checker Extension

A lightweight CodeMirror 6 extension that performs spell checking using plain dictionary lookup. It highlights misspelled words via editor decorations and supports language fallback resolution.

Features

• Dictionary-based spell checking (no external engine required)
• Language fallback resolution with locale aliases
• URL exclusion
• Custom ignore list
• Debounced updates for performance
• CodeMirror 6 decoration-based highlighting

Usage

import { EditorView } from "@codemirror/view";
import { spellChecker } from "./spellChecker";

const editor = new EditorView({
  extensions: [
    spellChecker("en", ["customWord"], 600)
  ],
  parent: document.body,
});

Personalize the styles!

.cm-editor .cm-spell-error {
	/* Your styling here */
}

Available languages

• Catalan
• German
• English
• Spanish
• French
• Italian
• Norwegian
• Portuguese
• Russian
• Swedish

If you'd require another language, submit a PR adding the appropiate .aff and .dic files under a folder with the lang code on the dictionaries folder, and the languages will be available.

You may open up an issue if you can't do so and i'll try.