Best ChatGPT Alternatives for Grammar Checking
28 AI tools that can replace ChatGPT for checking grammar, ranked by how closely they match. The percentage is a match score, not a popularity score.
Replacing: ChatGPT — Your AI assistant for everythingInput: text, images, audio, documents, code · Output: text, images, audio, code
1
Writing confidence that follows you everywhere
Input: text · Output: text
Free planFrom $12/mo
75%Strong alternative
00
How the score adds up
- Built for Grammar Checking (its core category)70/70
- Shares ChatGPT's other goals1/10
- Feature description similarity4/20
Shared goals 3 of the 21 we tag ChatGPT for
Grammar CheckingRewritingWriting
Also tagged for
AI DetectionPlagiarism CheckingHumanizing Text
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
2
Hemingway Editor is a writing app that marks up your draft so you can see where the prose gets heavy.
Input: text · Output: text
Free trial
76%Strong alternative
00
How the score adds up
- Built for Grammar Checking (its core category)70/70
- Shares ChatGPT's other goals1/10
- Feature description similarity4/20
Shared goals 3 of the 21 we tag ChatGPT for
Grammar CheckingRewritingWriting
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
3
Grammar Checker.cc is a free online grammar checker.
Input: text, documents · Output: text
Free plan
72%Partial replacement — covers the main need with gaps
00
How the score adds up
- Built for Grammar Checking (its core category)70/70
- Shares ChatGPT's other goals1/10
- Feature description similarity1/20
Shared goals 1 of the 21 we tag ChatGPT for
Grammar Checking
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
4
Ginger Software is an English writing assistant that checks spelling and grammar by reading whole sentences, so its corrections follow context instead of isolated word matches.
Input: text · Output: text
APIMobile appBrowser extensionTeams
75%Strong alternative
00
How the score adds up
- Built for Grammar Checking (its core category)70/70
- Shares ChatGPT's other goals1/10
- Feature description similarity3/20
Shared goals 3 of the 21 we tag ChatGPT for
Grammar CheckingRewritingWriting
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
5
Grammarly for Education is the institutional version of Grammarly's AI writing support, offered to universities, colleges and schools.
Input: text · Output: text
74%Partial replacement — covers the main need with gaps
00
How the score adds up
- Built for Grammar Checking (its core category)70/70
- Shares ChatGPT's other goals1/10
- Feature description similarity3/20
Shared goals 2 of the 21 we tag ChatGPT for
Grammar CheckingWriting
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
6
Writefull is automated writing and proofreading software for academics.
Input: text, documents · Output: text
Teams
74%Partial replacement — covers the main need with gaps
00
How the score adds up
- Built for Grammar Checking (its core category)70/70
- Shares ChatGPT's other goals1/10
- Feature description similarity3/20
Shared goals 3 of the 21 we tag ChatGPT for
Grammar CheckingRewritingWriting
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
7
LanguageTool checks grammar, spelling, punctuation, casing and style as you write, and works in more than 30 languages and dialects, including English, German, Portuguese, Spanish, French and Dutch.
Input: text · Output: text
Free planBrowser extensionTeams
74%Partial replacement — covers the main need with gaps
00
How the score adds up
- Built for Grammar Checking (its core category)70/70
- Shares ChatGPT's other goals1/10
- Feature description similarity2/20
Shared goals 3 of the 21 we tag ChatGPT for
Grammar CheckingRewritingWriting
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
8
Trinka is an AI writing assistant and grammar checker aimed at academic and technical writing.
Input: text, documents · Output: text, documents
Free planTeams
74%Partial replacement — covers the main need with gaps
00
How the score adds up
- Built for Grammar Checking (its core category)70/70
- Shares ChatGPT's other goals1/10
- Feature description similarity3/20
Shared goals 3 of the 21 we tag ChatGPT for
Grammar CheckingRewritingWriting
Also tagged for
AI DetectionPlagiarism Checking
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
9
AI in browser sidebar always ready
Assistant that sits in your browser sidebar, always ready, from $8.30/month
Input: text, images, documents, code, web pages · Output: text, images, video, code
Free planFrom $8.3/mo
52%Limited overlap · same core category as ChatGPT
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals6/10
- Feature description similarity4/20
Shared goals 13 of the 21 we tag ChatGPT for
ChatbotsCodingData AnalyticsGrammar CheckingImage GenerationPDF WorkResearchRewritingSearchSummarizingTranslationVideo GenerationWriting
Also tagged for
Video SummariesMind MappingEmail WritingHumanizing Text
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
10
Rewrite sentences without rewriting them yourself
Input: text · Output: text
Free planFrom $4.89/mo
48%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals1/10
- Feature description similarity5/20
Shared goals 3 of the 21 we tag ChatGPT for
Grammar CheckingRewritingWriting
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
11
Rephrase until it sounds right
Input: text, images, documents · Output: text, images, documents, slides
Free planFrom $19.95/mo
47%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals2/10
- Feature description similarity4/20
Shared goals 4 of the 21 we tag ChatGPT for
Grammar CheckingRewritingSummarizingWriting
Also tagged for
AI DetectionPlagiarism CheckingHumanizing Text
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
12
Most translation tools convert text and stop there
Input: text, audio, documents · Output: text, audio, documents
Free planFrom $7.49/moAPI
45%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals1/10
- Feature description similarity3/20
Shared goals 2 of the 21 we tag ChatGPT for
Grammar CheckingTranslation
Also tagged for
API Integration
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
13
Course Hero is a study platform that combines millions of student-shared course documents with AI homework help and tutors.
Input: text, images · Output: text
Mobile app
52%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals1/10
- Feature description similarity8/20
Shared goals 3 of the 21 we tag ChatGPT for
Grammar CheckingHomework HelpMath
Also tagged for
Flashcards
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
14
45%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals2/10
- Feature description similarity1/20
Shared goals 4 of the 21 we tag ChatGPT for
Essay WritingGrammar CheckingRewritingWriting
Also tagged for
AI DetectionPlagiarism CheckingHumanizing Text
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
15
RewriteBar offers a free trial before you buy
Input: text · Output: text
Free planFrom $29/mo
45%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals2/10
- Feature description similarity2/20
Shared goals 4 of the 21 we tag ChatGPT for
Grammar CheckingRewritingTranslationWriting
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
16
UnGPT takes AI-generated text and rewrites it to mimic natural human writing patterns that slip past detection algorithms
Input: text · Output: text
From $9.92/moBrowser extension
44%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals1/10
- Feature description similarity1/20
Shared goals 2 of the 21 we tag ChatGPT for
Grammar CheckingWriting
Also tagged for
SEO WritingAI DetectionPlagiarism CheckingHumanizing Text
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
17
StudyPro gives you 500 free credits daily
Input: text, documents · Output: text
Free planFrom $6/mo
48%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals2/10
- Feature description similarity4/20
Shared goals 4 of the 21 we tag ChatGPT for
Essay WritingGrammar CheckingRewritingWriting
Also tagged for
AI DetectionPlagiarism CheckingHumanizing Text
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
18
Chegg is a student study service offering step-by-step solutions, practice questions, expert proofreading and instant citations.
Input: text · Output: text
Mobile app
48%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals1/10
- Feature description similarity5/20
Shared goals 3 of the 21 we tag ChatGPT for
Grammar CheckingHomework HelpMath
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
19
You describe what you need and it creates, reads and edits the document, rewrites passages, summarizes long files and answers questions on how to improve your writing.
Input: text, audio, documents · Output: text, images, documents
Free planFrom $99.99/moMobile appTeams
48%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals2/10
- Feature description similarity4/20
Shared goals 4 of the 21 we tag ChatGPT for
Grammar CheckingRewritingSummarizingWriting
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
20
DeepL Write is an AI writing assistant from the makers of DeepL Translator.
Input: text · Output: text
Free planFrom $6.99/mo
47%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals1/10
- Feature description similarity4/20
Shared goals 3 of the 21 we tag ChatGPT for
Grammar CheckingRewritingWriting
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
21
Resoomer is a free online text studio that summarizes, paraphrases, translates, proofreads and reads documents aloud from one workspace.
Input: text, documents, web pages · Output: text, audio
Free planMobile appBrowser extension
47%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals2/10
- Feature description similarity3/20
Shared goals 4 of the 21 we tag ChatGPT for
Grammar CheckingRewritingSummarizingTranslation
Also tagged for
Reading
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
22
Overleaf AI Assist is the set of AI features built into Overleaf, the online LaTeX editor.
Input: text, images, code · Output: text, code
Free planFrom $7.25/mo
46%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals2/10
- Feature description similarity2/20
Shared goals 4 of the 21 we tag ChatGPT for
Grammar CheckingRewritingSummarizingWriting
Also tagged for
Research Papers
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
23
Smodin is an AI writing toolkit that puts an AI content detector, an AI humanizer, a plagiarism checker, an AI writer, a rewriter and an AI chat assistant in one account.
Input: text, documents · Output: text, data
45%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals1/10
- Feature description similarity2/20
Shared goals 3 of the 21 we tag ChatGPT for
Grammar CheckingRewritingWriting
Also tagged for
AI DetectionPlagiarism CheckingHumanizing Text
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
24
A Windows-only text improvement tool that sits in the background of any application and activates with a keyboard shortcut
Input: text · Output: text, audio
Free planFrom $2.79/moAPI
45%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals1/10
- Feature description similarity1/20
Shared goals 3 of the 21 we tag ChatGPT for
Grammar CheckingRewritingWriting
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
25
SpinBot is a free online article spinner and paraphrasing tool that rewrites readable text into new wording.
Input: text · Output: text
Free planBrowser extension
45%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals1/10
- Feature description similarity2/20
Shared goals 2 of the 21 we tag ChatGPT for
Grammar CheckingRewriting
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
26
Reverso is an online translation and language-learning service that combines neural machine translation with a contextual dictionary.
Input: text, documents · Output: text, documents
Free planFrom $6.49/mo
45%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals1/10
- Feature description similarity2/20
Shared goals 2 of the 21 we tag ChatGPT for
Grammar CheckingTranslation
Also tagged for
Language Learning
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
27
Scribbr Plagiarism Checker compares a document with a database of 99 billion web pages and 8 million publications and shows where the text matches existing sources.
Input: text, documents · Output: documents
Free plan
44%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals1/10
- Feature description similarity1/20
Shared goals 1 of the 21 we tag ChatGPT for
Grammar Checking
Also tagged for
AI DetectionPlagiarism Checking
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
28
ProWritingAid is a writing toolkit built around the full path of a book, from first idea to publication.
Input: text · Output: text
Free planFrom $10/mo
43%Limited overlap
00
How the score adds up
- Offers Grammar Checking as a secondary capability42/70
- Shares ChatGPT's other goals1/10
- Feature description similarity1/20
Shared goals 2 of the 21 we tag ChatGPT for
Grammar CheckingWriting
Also tagged for
Book Writing
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
Can it really replace ChatGPT for checking grammar? Vote on each alternative — no account needed. Votes gently reorder the list; they never change the match score.
Missing an alternative for checking grammar? Suggest it
At a glance: top ChatGPT alternatives for Grammar Checking
| Tool | Match | Input | Output | Pricing | Free plan | Rating | Category |
|---|---|---|---|---|---|---|---|
| Grammarly | 75% | text | text | From $12/mo | Yes | — | AI Grammar Checker |
| Hemingway Editor | 76% | text | text | — | No | — | AI Grammar Checker |
| Grammar Checker.cc | 72% | text, documents | text | Free | Yes | — | AI Grammar Checker |
| Ginger Software | 75% | text | text | — | No | — | AI Grammar Checker |
| Grammarly for Education | 74% | text | text | — | No | — | AI Grammar Checker |
| Writefull | 74% | text, documents | text | — | No | — | AI Grammar Checker |
Frequently asked
What is the best ChatGPT alternative for checking grammar?
Grammarly (75% match) is the closest alternative to ChatGPT for checking grammar: Writing confidence that follows you everywhere. Hemingway Editor (76% match) and Grammar Checker.cc (72% match) come next.
Is there a free alternative to ChatGPT for checking grammar?
Yes. 20 of the 28 ranked alternatives have a free plan or free tier, including Grammarly, Grammar Checker.cc, LanguageTool.
How is the match percentage calculated?
It measures how much of ChatGPT's job a tool can take over for checking grammar: shared core category, how many of the same use cases it covers and how similar its feature set is. Popularity and ratings never change the percentage; they only break ties in the order. Lists are recomputed nightly and reviewed by editors for the most-visited tools.
How this list is ranked
The match score measures how much of ChatGPT's job each tool can take over when the goal is checking grammar: shared core category, how many of the same use cases it covers, and how similar its feature set is. Popularity and ratings do not change the score; they only break ties in the order.
Lists are recomputed nightly from the live catalog and reviewed by our editors for the most-visited tools. Sponsored placements are marked and sit outside the ranking.