Best Writing Chrome Extensions (2026)

Best writing Chrome extensions

A writing Chrome extension checks grammar, spelling and tone as you type on any website, not just in a word processor. Our top pick is Grammarly: it has a free plan and works across Gmail, Google Docs, social media and most text boxes, catching errors and tone issues before you hit send.

Last reviewed September 26, 2026 · 2 listings · Independent, not affiliated with Google

Most writing happens outside a dedicated word processor: emails, social posts, support tickets, comments. A writing extension checks that text wherever you type it, underlining errors and suggesting fixes inline, so you don't have to paste text into a separate app to catch mistakes before publishing or sending.

Catch grammar and tone issues anywhere you type

Grammarly runs in the background across most websites, underlining spelling and grammar errors and flagging tone that might read as too blunt or too casual for the context. Its free plan covers core grammar and spelling checks, while paid tiers add deeper style and clarity suggestions.

Multilingual grammar checking

LanguageTool supports grammar and style checking across many languages, which makes it a better fit than English-only tools if you write in more than one language. Like Grammarly, it underlines issues directly in text boxes and offers a free plan with paid tiers for more advanced checks.

Grammarly vs LanguageTool

Grammarly has broader tone and clarity features and deeper integration with English-language platforms, while LanguageTool's strength is genuine multilingual support. If you write primarily in English, Grammarly's suggestions tend to be more nuanced; if you switch languages often, LanguageTool is the more practical choice.

Best writing Chrome extensions: FAQs

What is the best writing Chrome extension?

Grammarly is the best general pick because its free plan covers grammar and spelling across most websites. LanguageTool is a better fit if you need genuine multilingual grammar checking.

What does Grammarly's free plan include?

Grammarly offers a free plan covering core grammar, spelling and punctuation checks. Paid tiers add tone detection, clarity rewrites and more advanced style suggestions.

Does Grammarly work in Gmail and Google Docs?

Yes, Grammarly integrates directly with Gmail and Google Docs, underlining issues as you type and offering suggestions inline, in addition to working on most other websites with text boxes.

What is the best AI writing Chrome extension?

Grammarly and LanguageTool both use AI-based language models to detect grammar, style and tone issues. Choose based on whether you need English-focused nuance or multilingual coverage.

Is LanguageTool as good as Grammarly?

For English writing, Grammarly generally offers more nuanced tone and clarity suggestions. LanguageTool's advantage is genuine support for many languages, which makes it a better fit for multilingual writers.

Can a writing extension read everything I type?

Writing extensions need to read text in fields where they check grammar, which is how they work. Review the extension's privacy policy and disable it for sensitive fields like passwords or confidential documents if concerned.

Do writing extensions slow down typing?

Well-built writing extensions like Grammarly and LanguageTool are designed to check text with minimal delay. If you notice lag on a specific site, try disabling the extension for that site only.

Is Grammarly safe to use for confidential work documents?

Grammarly processes text to provide suggestions, so for highly confidential documents, check the extension's data handling policy or disable it for specific sensitive fields before typing.

Can I use a writing extension in more than one language?

LanguageTool explicitly supports many languages for grammar and style checking. Grammarly is primarily built for English, so switch to LanguageTool or a similar multilingual tool for other languages.

Do writing extensions work in Edge and Brave?

Yes, both Grammarly and LanguageTool are available for Chromium-based browsers including Microsoft Edge and Brave, since they support the same extension platform as Chrome.