The HN Solutions Grammar Checker fixes grammar, spelling and punctuation while keeping your voice — and unlike most free checkers, it shows you a plain-English list of what it changed and why, so you actually learn from the corrections. No account, no premium nag, no browser extension required.
How to use the grammar checker
- Paste your text — emails, essays, applications, posts.
- Click Check grammar.
- Copy the corrected version, and skim the “What changed” list — that is where the learning happens.
Frequently asked questions
Does it change my writing style?
No — it is instructed to keep the author voice and only fix errors. Formality changes are the paraphrasing tool's job.
Which English does it use?
It auto-detects — if your text is in British English it corrects to British conventions, and likewise for American.
Is it better than my word processor?
It catches contextual errors (their/there, its/it's, subject–verb agreement across clauses) that basic spellcheckers miss, and explains each fix.
Is my text private?
Your text is processed to generate corrections and is not stored on our site.
Draft with the AI writer, tighten with the paraphraser, and confirm length with the word counter.
What a free grammar checker actually catches
Reliably: subject–verb agreement, tense drift inside a sentence, missing or doubled articles, comma splices, and the homophone set that spellcheck sails past — their/there/they’re, its/it’s, your/you’re. Those are the errors that make writing look careless, and they are exactly the ones your eye skips because you know what you meant.
Less reliably: anything that depends on meaning. A checker cannot tell whether you meant “affect” or “effect” in a sentence where both parse. It cannot tell that a paragraph contradicts the one above it. And it will happily approve a grammatically perfect sentence that says nothing.
Why it flags things that are not wrong
Two reasons, and both are worth understanding before you accept a suggestion.
Style rules dressed as grammar. Passive voice, sentence length, starting with “But” — these are preferences, not errors. A checker trained on formal prose will flag perfectly good conversational writing. If the correction makes the sentence stiffer, ignore it.
Missing context. Proper nouns, product names, technical terms and deliberate fragments all look like mistakes to a parser. “n8n” is not a typo. A one-word sentence for emphasis is not an error. Really.
The order that works: draft, structure, then grammar
Checking grammar while drafting is the slowest way to write. You interrupt the sentence you are forming to fix the one behind it, and the piece never gains momentum.
Get the argument down first. Fix the structure second — are the sections in the right order, is anything missing, is anything repeated. Only then run the grammar pass, because there is no point polishing a paragraph you are about to delete.
The word counter is useful at the structure stage, and the paraphrasing tool helps when a sentence is grammatically fine but reads badly.
British and American English
Most checkers default to American spelling, so colour, organise and centre get flagged as errors in text that is perfectly correct. That is a locale setting, not a mistake.
The rule that matters more than which you pick: be consistent. A page that mixes optimize and colour reads as carelessly assembled, which is precisely the impression good grammar is meant to prevent.
What happens to your text here
This tool sends your text to an AI provider to generate the corrections, so it is not a local tool and we do not pretend it is. Nothing is stored on this site, but the text does leave your device — so do not paste anything confidential, client-privileged or unpublished that you would mind a third party processing.
If you want a tool that genuinely never transmits anything, the word counter and case converter both run entirely in your browser.