The 7 Best Grammar Checkers for Everyday Writing (All Tested)

Grammar tools are one of those things people upgrade only after something embarrassing happens. A typo in a client proposal. A comma splice in something that got screenshotted. Whatever the trigger, once you start actually comparing these tools side by side, the differences are bigger than you’d expect.

Seven checkers were tested on three documents — a casual lifestyle piece, a professional email thread, and a dense technical how-to. Not synthetic test content. Real drafts, real problems.

1. Getsolved Grammar Checker

Something most checkers skip: explaining why a sentence lands badly, not just marking it red. On the professional email test, a standard checker returned zero flags. The Getsolved grammar checker returned three — two passive constructions that quietly undercut the sender’s authority, and one phrase that would read as blunt to the recipient. None of them were grammar errors in the strict sense. All three were worth changing before sending.

Free version, no signup. Paste text or upload a PDF, Word doc, or plain text file. Every suggestion has a short reason attached and a one-click fix — you decide what stays. The subscription adds AI detection, plagiarism scanning, fact checking, and paraphrasing. Not four tools. One plan.

126K+ active users monthly · 2.6M+ documents processed · 20+ languages · Rated 4.6/5

Pricing: Free (no signup required) · 7-day $2.00 · Monthly $19.99 · Annual $7.99/month

2. QuillBot

Here’s what’s different about QuillBot: it doesn’t just find errors, it offers rewrites.

Most grammar tools flag a problem and stop there. QuillBot flags it and gives you a paraphrased alternative in the same window. Useful when a sentence is technically fixable but still awkward — which happens more often than the error rate alone suggests.

Dialect options are broader than most: US, UK, Australian, Canadian English, plus German, French, Spanish, Brazilian Portuguese. The writing score updates live as you edit. AI detection is built into the same interface — no separate tab.

One specific thing that stood out: wordiness flags. Filler constructions like "it is worth noting that" and "in the event that" got flagged consistently. Grammarly’s free tier left them alone.

Free covers everyday use. Premium removes word limits and expands suggestions. From $4.17/month (annual).

3. Ginger

Tested on a 600-word casual lifestyle piece. Results:

Ginger rewrote five sentences that other tools had only partially flagged. Not just corrected — offered full alternative versions. The difference matters when a sentence is grammatically fine but reads like it was assembled rather than written.

The dyslexic spelling detection caught three transpositions that standard spell check skipped entirely. That’s a niche feature, but for writers who make those specific errors consistently, it’s the one thing that justifies trying Ginger over a more well-known alternative.

Extensions cover Chrome, Edge, Safari, Microsoft Office, and Word. Translation runs across 40+ languages — useful for ESL writers who draft in one language and edit in another.

Free tier available. Premium from $6.99/month.

4. Reverso

Reverso is the only tool here that combines grammar correction, a translator, a thesaurus, and verb conjugation references in one place. For writers working in English as a second language, that matters — you can check a sentence, find the right preposition, and pick a better word without opening three tabs.

How it compares to Microsoft Editor on the features that actually differ:

Core grammar check covers tenses, prepositions, punctuation, and subject-verb agreement. The US/UK toggle saves repeated manual corrections on international content.

Free. Premium from $4.99/month.

5. Microsoft Editor

The case for Microsoft Editor is simple: if you’re already paying for Microsoft 365, you have it.

The free browser extension handles grammar, spelling, punctuation. The premium layer — bundled into 365 — adds conciseness flags, clarity suggestions, formality guidance, and a resume assistant. On the technical document test, the conciseness pass cut 12% of the word count. Not by removing ideas. By shortening constructions: "in order to" became "to," "due to the fact that" became "because." Small changes, but they add up across a long document.

Works inline in Word, Outlook, and Teams. No copy-paste step. Corrections appear where you’re already writing.

Outside 365, the browser extension covers most sites. Deeper suggestions need the subscription — which, again, most people using Office already have.

Included with Microsoft 365 from $6.99/month. Browser extension free.

6. Trinka

Three things Trinka catches that Grammarly and QuillBot routinely miss on academic and technical documents:

Article errors. Non-native English speakers drop or misplace "the" and "a" in ways that are hard to self-edit. Trinka flags these reliably. The other tools here largely don’t.

Discipline-specific passive voice. In medicine and engineering, passive constructions are sometimes required by the style guide — and sometimes not. Trinka distinguishes between the two. Generic checkers flag all passive voice indiscriminately.

Inconsistent terminology. Use "participants" in section one and "subjects" in section three? Trinka notices. For academic writing, that kind of consistency matters more than most style suggestions.

Free web tool covers 500 words. Full version: Word, Chrome, Firefox, Edge, Windows desktop app. From $6.67/month annual.

7. DeepL Write

DeepL Write doesn’t feel like a traditional grammar checking software tool. It feels like editing with someone who already knows the language well.

Paste a sentence and it shows word-level alternatives in real time — not corrections exactly, more like options. Tighten this phrase. Try this word instead. Shift the formality here. The grammar and spelling checks run underneath all of that, but they’re almost background noise compared to the sentence-level suggestions.

The multilingual depth is the real differentiator. German, French, Spanish, Portuguese, Italian, Dutch, Polish — trained on native text in each, not translated from English rules. For business writing across multiple languages, that’s a different category of tool from anything else on this list.

Free tier available. Pro from $8.74/month annual.

Before You Pick One, Try This

Take one paragraph — something you wrote last week, not a demo — and run it through three of these. The results will diverge in ways a feature table won’t predict.

One tool catches things the others ignore. One suggests a rewrite that’s technically better but sounds nothing like you. One misses the sentence your editor comments on two days later. That gap is the information. Five minutes on your own content tells you more than any comparison chart.

Specialized tools beat general ones on their home turf. Trinka on research papers. DeepL Write on multilingual business content. Microsoft Editor inside a 365 workflow. Match the tool to what you actually write, and the feature list stops mattering as much.

Final Thoughts

The best proofreading tools aren’t interchangeable. Each one here does at least one thing the others don’t — which is why the list exists instead of just naming one winner.

Free tiers across all seven are wide enough for a real test on real content. The right tool is whichever one catches the most useful things on your writing without flattening how it sounds.