This repo contains the code for a Chrome extension that spellchecks markdown cells in Google Colab. The extension is available for free on Chrome Web Store.
Spellchecking runs completely offline, locally in the extension using a modified BJSpell spellchecker with a bundled English (US) Hunspell-derived dictionary [1] [2] . This approach is lightweight, but imperfect. Please use the personal dictionary feature to store any valid words this extension initially considers non-words.
Install the extension from the Chrome Web Store. That's it! No login, no network, all local.
Open a Colab notebook, click a markdown cell, and click Check Active Cell in the extension popup. The extension will create a table of misspelled words (if present) and suggestions.
If the extension registers a real word as misspelled, you may click the word in the extension and add it to your personal dictionary. Manage your personal dictionary within settings 
.