Google Search adds an AI grammar checker

If you've ever doubted your English phrasing right before hitting send, you've probably pasted it into Grammarly or a blank Google Doc.

Google now wants to cut out that middleman entirely. The company quietly rolled out an AI-powered grammar check tool built straight into Google Search.

A green checkmark in the search box

Getting it to work is straightforward. As first spotted by 9to5Google, typing phrases like "grammar check," "check grammar," or "grammar checker" after your sentence guarantees the widget pops up.

Even if you forget to include those triggers, Google might still surface the tool automatically if its algorithm suspects you're struggling with sentence structure.

When it catches a mistake—spelling errors included—the tool displays a rewritten sentence and highlights what changed. You can hover over it to quickly copy the clean version. If your sentence is already pristine, you get a clean green checkmark.

Because it runs on AI, Google cautions that it might not always be accurate, particularly when reviewing phrases or sentence fragments rather than full thoughts. Users can submit feedback if a correction misses the mark.

Search policies and messy queries

For now, the feature is limited to English and comes with a few strict guardrails.

The tool flatly refuses to process queries that violate Google Search policies. That means no grammar feedback on anything involving medical advice, violence, harassment, sexually explicit content, terrorism, or even everyday profanity.

There is also the messy reality of how people actually search. Most people don't type polished sentences; they type fragmented keywords like "hard boiled egg how long."

Google's AI has to accurately guess whether someone wants a grammar critique or actual search results. If it guesses wrong, it risks pushing the real answers further down the page.

Why it matters

For everyday users, this is peak convenience. If you need a quick sanity check on a single sentence before sending an email or posting online, you no longer need a dedicated browser extension or an open Docs tab. It costs nothing and requires zero setup.

For products like Grammarly, Google's move is another clear encroachment on basic utility. While dedicated tools still win on tone adjustments, style guides, and long-form editing, Search is more than capable of stripping away the high-volume, lightweight queries that Grammarly built its brand on.

In our view, porting technology already present in Gmail and Drive into Search makes obvious sense. The tricky part will be intent recognition: Search boxes are built for quick information retrieval, and if Google starts lecturing users on grammar when they just want an answer, the feature will quickly become an annoyance.