Skip to content
Implement spellchecking, correctly
JavaScript HTML
Branch: master
Clone or download
Latest commit 7227d61 Nov 12, 2019
Type Name Latest commit message Commit time
Failed to load latest commit information.
example main.js: Add require to import modules. Apr 22, 2019
src fix: electron-remote require path Jul 14, 2019
test test: Fixed some tests on macOS Jan 29, 2019
.eslintrc Initial Import Jun 1, 2016
.gitignore Update stale comment. Mar 16, 2017
.npmignore Include lib Jun 10, 2016
.npmrc chore: Update dependencies Mar 1, 2019 Initial Import Jun 1, 2016
COPYING Initial Import Jun 1, 2016 docs: Add a source for node-spellchecker May 31, 2019
esdoc.json Initial Import Jun 1, 2016
package-lock.json 2.2.1 Nov 12, 2019
package.json 2.2.1 Nov 12, 2019


electron-spellchecker is a library to help you implement spellchecking in your Electron applications, as well as handle default right-click Context Menus (since spell checking shows up in them). This library intends to solve the problem of spellchecking in a production-ready, international-friendly way.


  • Spell checks in all of the languages that Google Chrome supports by reusing its dictionaries.
  • Automatically detects the language the user is typing in and silently switches on the fly.
  • Handles locale correctly and automatically (i.e. users who are from Australia should not be corrected for 'colour', but US English speakers should)
  • Automatically downloads and manages dictionaries in the background.
  • Checks very quickly, doesn't introduce input lag which is extremely noticable
  • Only loads one Dictionary at a time which saves a significant amount of memory

Quick Start

import {SpellCheckHandler, ContextMenuListener, ContextMenuBuilder} from 'electron-spellchecker';

window.spellCheckHandler = new SpellCheckHandler();

// Start off as US English, America #1 (lol)

let contextMenuBuilder = new ContextMenuBuilder(window.spellCheckHandler);
let contextMenuListener = new ContextMenuListener((info) => {

Language Auto-Detection

The spell checker will attempt to automatically check the language that the user is typing in and switch on-the fly. However, giving it an explicit hint by calling switchLanguage, or providing it a block of sample text via provideHintText will result in much better results.

Sample text should be text that is reasonably likely to be in the same language as the user typing - for example, in an Email reply box, the original Email text would be a great sample, or in the case of Slack, the existing channel messages are used as the sample text.

About node-spellchecker

This module uses a fork of Atom's excellent node-spellchecker that takes a slightly different path on Windows by using Hunspell only. You can find the source here.

Learning more

You can’t perform that action at this time.