Grammar checker: find the mistakes before your readers do.

What a grammar check is for

A grammar check catches the errors that make a reader stop: a subject and verb that do not agree, a missing word, a comma that changes the meaning, a misspelled name. Those mistakes cost trust out of proportion to their size. A reader who spots two typos in the first paragraph starts to wonder what else is wrong.

What a grammar check is not for is making writing good. A page can be error-free and still vague, padded or hard to follow. Fix those things first, in an editing pass, and proofread last.

What the tool can and cannot see

The checker is a language model reading your text. That makes it good at context. It can tell that “their going to announce it” should be “they’re”, which a spelling list cannot. It also has limits worth knowing:

• It can miss things. Errors that form real words and a plausible sentence are the easiest to miss, for people and models alike.
• It can flag correct usage. Sentence fragments used on purpose, a split infinitive, a sentence that starts with “and”: all acceptable in plain modern English, and a checker may still query them.
• Style is not grammar. US or UK spelling, the Oxford comma, spaced or unspaced dashes, capitalized headings. These are conventions. Choose one and be consistent.
• It does not know your terms. Product names, brand spellings and industry jargon may be flagged as errors. Keep them if they are right.

How to proofread well by hand

Most proofreading errors survive because the writer reads what they meant, not what they wrote. A few habits break that:

• Leave time between writing and proofreading, even an hour.
• Change the format. Read it on your phone, in a different font, or printed.
• Read aloud, slowly. Your mouth trips where your eye skims.
• Do one pass per problem: one for spelling and names, one for punctuation, one for numbers and links.
• Check the places errors cluster: headings, captions, the first line of each section, and anything edited late.

Use the tool after your own pass, as a second reader. Then check word count and length with the word counter, and if a passage needs more than a fix, the article rewriter can reword it.

Clean copy is the last step, not the first

Correct grammar is the floor for a page you want read and cited, not the thing that gets it read. AltoRank plans and drafts SEO content for a site every week, and a person reviews and approves each piece before it publishes, which is also where the final proofread happens.