Best Grammar Checkers for English Learners (2026): 10 Tools Tested
We tested the top grammar checkers to find which ones actually help you learn from your mistakes, not just fix them.
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Our Quick Picks
- Best overall for learners: Grammarly Premium (explains every correction)
- Best free option: LanguageTool (30+ languages, generous free tier)
- Best for deep writing analysis: ProWritingAid (20+ reports on your writing style)
- Best for ESL learners: Ginger (built specifically for non-native speakers)
- Best for paraphrasing practice: QuillBot (rewrite sentences in 4+ styles)
Why This Matters for English Learners
Most grammar checkers are designed for native speakers who want to catch typos. But English learners need something different: tools that explain why something is wrong, teach the grammar rule, and adapt to your current level.
A good grammar checker for English learners does three things. It finds your mistakes. It explains the rule behind each mistake. And it helps you stop making the same mistake next time.
We tested 10 grammar checkers specifically for English learners. We looked at how well each tool teaches, not just how many errors it catches. Here is what we found.
Quick Comparison Table
Here is a side-by-side look at all 10 tools. Prices are approximate and may vary based on subscriptions.
| Tool | Best For | Free Tier | Premium Price | Teaches Rules? | CEFR Level |
|---|---|---|---|---|---|
| Grammarly | All-round best | Basic | $12/mo | Yes (Premium) | A2-C1 |
| ProWritingAid | Deep analysis | 500 words | $10/mo | Yes (reports) | B2-C1 |
| Hemingway | Simple writing | Full web app | $19.99 one-time | No (highlights only) | A2-B1 |
| LanguageTool | Multi-language | Basic | $6.75/mo | Yes | A2-C1 |
| QuillBot | Paraphrasing | 125 words | $8.33/mo | Moderate | B1-C1 |
| Ginger | ESL learners | Basic | $7.49/mo | Yes (personal trainer) | A2-B2 |
| WhiteSmoke | Business writing | Limited | $5.00/mo | Yes | B1-C1 |
| PaperRater | Students | Full (basic) | $14.95/mo | Moderate | B1-C1 |
| Reverso | Context & translation | Generous | $4.17/mo | Yes (in context) | A2-B2 |
| SlickWrite | Budget pick | Full (basic) | Free | Yes (reports) | B1-C1 |
Detailed Reviews of Each Tool
1. Grammarly: Best Overall for English Learners
Grammarly is the most popular grammar checker in the world, and for good reason. It catches spelling, punctuation, grammar, and tone issues in real time. It works as a browser extension, desktop app, and web editor.
Free version: Basic grammar, spelling, and punctuation correction. You see what is wrong but not always why.
Premium ($12/month): Full-sentence rewrites, tone suggestions, clarity improvements, and most importantly grammar rule explanations. Premium tells you why a correction was made and shows you the grammar rule so you can learn from it.
Why it is great for learners: The weekly progress report shows which error types you make most often (articles, prepositions, verb tenses). This helps you focus your study on your weak areas. Premium subscribers also get a grammar handbook with explanations for each rule.
Best for: A2 to C1 learners who want an all-in-one tool that catches everything and teaches as it fixes.
Limitation: The free version does not explain corrections. You need Premium to learn from your mistakes. At $12/month, it is one of the pricier options.
Pair Grammarly with our writing practice guide for daily improvements.
2. ProWritingAid: Best for Deep Writing Analysis
ProWritingAid is a grammar checker and writing analysis tool in one. It goes beyond fixing surface errors and looks at your overall writing style.
Free version: Checks up to 500 words at a time. Enough to test the tool but too limited for long-term use.
Premium ($10/month): Unlimited words, 20+ reports including grammar, style, overused words, sticky sentences, readability, and sentence length variation. The reports show you patterns in your writing that you can study and improve.
Why it is great for learners: The grammar report breaks down the types of errors you make. The sticky sentences report helps you identify when your writing is hard to follow. For intermediate and advanced learners, these reports are like having a writing teacher review your work.
Best for: B2 to C1 learners who write long texts (emails, essays, reports) and want to understand their writing patterns.
Limitation: The interface is more complex than Grammarly. Beginner learners may feel overwhelmed by the number of reports and data.
3. Hemingway Editor: Best for Writing Simply
Hemingway Editor is not a traditional grammar checker. It highlights hard-to-read sentences, passive voice, and complex phrases. It helps you write clearer and more direct English.
Free version (web): Full functionality in the browser. Paste your text and see color-coded highlights for each issue type. The readability score tells you what grade level your writing is at.
Paid version ($19.99 one-time): Desktop app with export options. Same features as the web version but works offline.
Why it is great for learners: Many English learners tend to write long, complicated sentences because they think it sounds more advanced. Hemingway teaches you that simple writing is better writing. The readability score is a great motivator when you see it improve.
Best for: A2 to B1 learners who need to learn how to write clearly and concisely.
Limitation: Hemingway does not explain grammar rules or teach why something is wrong. It just highlights issues and lets you figure them out.
Combine it with our guide on how to practice English writing alone for a complete routine.
4. LanguageTool: Best for Multilingual Learners
LanguageTool is an open-source grammar checker that supports more than 30 languages. It catches grammar, spelling, and style issues with a generous free tier.
Free version: Basic grammar and spelling checks in 30+ languages. Limited to certain character counts but generous enough for daily use.
Premium ($6.75/month): Style improvements, punctuation fixes, advanced word choice suggestions, and the ability to set your own style preferences.
Why it is great for learners: If your native language is Spanish, Portuguese, German, French, or any of the 30+ supported languages, LanguageTool catches interference errors. These are mistakes that happen because your native language grammar is different from English grammar. The tool shows you the rule and the fix side by side.
Best for: A2 to C1 learners who speak another language and want a tool that understands their specific error patterns.
Limitation: The user interface is not as polished as Grammarly or ProWritingAid. Some explanations are brief and may not be detailed enough for beginner learners.
5. QuillBot: Best for Paraphrasing Practice
QuillBot is primarily a paraphrasing tool with grammar checking features built in. It helps you rewrite sentences in different styles and tones.
Free version: Up to 125 words per paraphrase, two writing modes (Standard and Fluency), and basic grammar checking.
Premium ($8.33/month): Unlimited paraphrasing, 4+ writing modes (Formal, Creative, Expand, Shorten), plagiarism checker, and grammar checker with explanations.
Why it is great for learners: Write a sentence, then use QuillBot to see five different ways to say the same thing. This teaches vocabulary alternatives and sentence structure variations naturally. The Fluency mode is especially useful for checking if your sentence sounds natural.
Best for: B1 to C1 learners who want to expand their vocabulary and learn alternative sentence structures.
Limitation: The grammar checker is not as thorough as Grammarly or ProWritingAid. QuillBot is best used as a supplementary tool for paraphrasing practice, not as your main grammar checker.
6. Ginger: Best for ESL Learners
Ginger was originally built for ESL (English as a Second Language) learners. It focuses on the specific needs of non-native speakers.
Free version: Basic grammar and spelling correction with sentence rephrasing.
Premium ($7.49/month): Full-sentence rewrites, text-to-speech, personal trainer with exercises based on your errors, and a translation feature.
Why it is great for learners: The Personal Trainer feature creates exercises specifically for the grammar mistakes you make most often. If you consistently confuse your and you're, Ginger will generate practice sentences for that exact problem. This turns the tool into a personalized study system.
Best for: A2 to B2 learners who want a tool that teaches through practice exercises based on their actual mistakes.
Limitation: Ginger's design feels older than competitors. The text-to-speech voice is robotic. Browser extension support is limited compared to Grammarly.
7. WhiteSmoke: Best for Business Writing
WhiteSmoke focuses on business and professional English writing. It includes grammar checking, style suggestions, and translation features.
Free version: Very limited. Mostly a demo to test the interface.
Premium ($5.00/month): Full grammar checker with bilingual translation, style editor, and specialized templates for business emails, cover letters, and essays.
Why it is great for learners: WhiteSmoke offers specialized templates for different writing situations. If you need to write a professional email in English, the tool provides a template and checks your grammar at the same time. The bilingual translation is helpful for lower-level learners who need to switch between languages.
Best for: B1 to C1 learners who need grammar checking for professional and business writing.
Limitation: The tool lags behind competitors in accuracy. Some reviews report that it misses certain grammar errors that Grammarly catches easily.
8. PaperRater: Best for Students
PaperRater is designed for academic writing. It checks grammar, plagiarism, and originality in one place.
Free version: Grammar and spelling checks with basic feedback. Includes a vocabulary builder feature.
Premium ($14.95/month): Plagiarism detection, detailed writing analysis, grammar explanations, and automated scoring of your writing quality.
Why it is great for learners: PaperRater provides a score for your writing (like a grade) which helps you track improvement over time. The plagiarism checker is useful if you are writing essays for English exams or academic applications.
Best for: B1 to C1 learners who are preparing for academic English exams or writing essays for university applications.
Limitation: The interface is outdated. Pricing is higher than most competitors at $14.95/month for the full version.
9. Reverso: Best for Context and Translation
Reverso is a grammar checker combined with a translation tool and context dictionary. It shows you how words and phrases are used in real sentences.
Free version: Grammar checker with contextual corrections, translation in 15+ languages, and examples from real documents.
Premium ($4.17/month): Unlimited corrections, ad-free experience, larger context examples, and offline access on mobile.
Why it is great for learners: When Reverso corrects your sentence, it shows you examples of similar correct sentences from real texts. This helps you see how native speakers actually use the grammar rule. The context dictionary is excellent for understanding word usage in different situations.
Best for: A2 to B2 learners who want to see grammar rules in real-world context and need translation support in their native language.
Limitation: The grammar checker is not as comprehensive as Grammarly or ProWritingAid. It works best as a learning supplement, not a primary writing tool.
10. SlickWrite: Best Free Option
SlickWrite is a completely free grammar checker with writing analytics. It offers many of the same features as paid tools with no subscription cost.
Free: Grammar checking, spelling, style suggestions, readability analysis, and vocabulary reports. All features are available at no cost.
Premium (not yet available): Future plans include premium features, but as of 2026 the tool remains completely free.
Why it is great for learners: SlickWrite gives you detailed reports on your writing, including readability scores, sentence structure analysis, and vocabulary variety. All of this is free. For learners on a budget, this is the best value option.
Best for: B1 to C1 learners who want detailed writing analysis but cannot afford a premium subscription.
Limitation: The interface is basic and less user-friendly than Grammarly or ProWritingAid. Updates are less frequent than paid tools.
How to Choose a Grammar Checker by Your English Level
The best grammar checker for you depends on your current English level. Here is our recommendation for each CEFR level.
| Your Level | Best Tool | Why |
|---|---|---|
| A1-A2 (Beginner) | Grammarly Free + Hemingway | Simple corrections plus guidance to write clearly |
| B1 (Intermediate) | Grammarly Premium | Explanations help you learn the grammar rules |
| B2 (Upper Intermediate) | ProWritingAid | Detailed reports show patterns in your mistakes |
| C1-C2 (Advanced) | LanguageTool + ProWritingAid | Combination catches subtle errors and style issues |
The Problem with Grammar Checkers
We need to be honest. Grammar checkers have real limitations, especially for English learners.
First, they miss context-dependent errors. A sentence can be grammatically correct but mean the wrong thing in context. No grammar checker fully understands meaning the way a human reader does.
Second, grammar checkers sometimes suggest changes that change your meaning. If you accept every suggestion without thinking, you may end up with a sentence that sounds smooth but says something different from what you intended.
Third and most important: grammar checkers do not replace learning grammar rules. If you always rely on a tool to fix your mistakes, you will never learn to fix them yourself. The tool becomes a crutch instead of a teacher.
The right way to use a grammar checker as a learner: Write without help. Run the checker. Read every suggestion carefully. Ask why was this wrong? If the tool does not explain it, look up the rule yourself. Then rewrite the sentence yourself before accepting the suggestion.
Frequently Asked Questions
Is Grammarly free enough for English learners?
Grammarly Free catches basic errors, which is helpful for beginner and intermediate learners. However, it does not explain why something is wrong. For learning purposes, Premium is much more valuable because it shows you the grammar rule behind each correction. If your budget is tight, start with LanguageTool Free or SlickWrite both offer better explanations at no cost.
Can a grammar checker make me fluent?
No. Grammar checkers are tools for correcting and improving your writing, but fluency requires speaking and listening practice too. Use a grammar checker to improve your written English, but combine it with speaking practice through a tutoring platform like Preply or iTalki for complete language development.
Which tool is best for IELTS writing preparation?
For IELTS writing, we recommend ProWritingAid for its detailed reports on sentence structure, readability, and grammar patterns. Grammarly Premium is also excellent if you want explanations for each correction. Both tools help you identify the type of errors that IELTS examiners penalize.
What is the cheapest grammar checker that actually teaches?
LanguageTool at $6.75/month offers the best balance of price and teaching quality. For free options, SlickWrite and Reverso provide useful explanations at no cost. Ginger at $7.49/month is also a good value because the Personal Trainer creates exercises based on your specific errors.
Do I still need a grammar checker if I use AI tools like ChatGPT?
ChatGPT can act as a grammar tutor if you prompt it correctly, but it is not designed for real-time correction as you type. Grammar checkers work in the background (browser extensions, Word plugins) and catch errors instantly. For learning, use both: a grammar checker for daily writing feedback and a tool like ChatGPT for deeper explanations when you want to understand a specific rule.
Next Steps: Take Action on Your Writing
Reading about grammar checkers is step one. The real improvement happens when you start using one consistently. Here is your action plan.
- Try Grammarly Free today and see how many errors you actually make in a typical email or message. If you want explanations for each correction, upgrade to Premium.
- Combine your grammar checker practice with daily writing exercises for faster improvement.
- When you need real feedback on your writing, book a lesson with a tutor on iTalki or Preply.
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