Online Grammar Check
The best 50 Online Grammar Check AI tools - Free & Paid
Explore 50 AI for Online Grammar Check
LanguageTool is an AI grammar, spelling, and style checker supporting 30+ languages. It offers real‑time browser extensions, desktop and Word add‑ins, advanced Picky Mode, paraphrasing, and an API for developer integration.
Free
CorrectEnglish is an AI writing assistant delivering spelling, grammar, and style corrections on Android, iOS, and browsers. It offers contextual word suggestions, error detection, a plagiarism checker, formatting guides, readability scores, and integrates with extensions and research tools.
Freemium
- $24/mo
This AI tool is a free online writing assistant with advanced features to enhance writing skills and prevent plagiarism.
Freemium
Web‑based grammar checker supporting 27 languages—including Tagalog and English variants—highlights spelling, grammar, punctuation errors and offers corrections. It accepts rich text up to 15,000 characters, detects GPT‑style typos, and includes an AI content detector, usable from any browser.
Free
Gramara is an AI grammar checker that flags errors and awkward phrasing in real‑time, offers style and tone suggestions, and translates corrected sentences into multiple languages, helping writers improve clarity and accuracy.
Free
Linguix is a writing tool that offers free grammar check, analyzes team performance over-time, can be accessed through various platforms, and has a clean and modern UI.
Freemium
- $99
FCK.School Free Tools offers web based writing utilities — grammar and punctuation checkers, summarizer, paraphrase and rewrite tools — plus academic content generators (outlines, thesis statements, titles, paragraphs, conclusions) to support drafting, editing, and idea development.
Freemium
Check Typo is an AI‑powered spell‑checker extension that integrates into web forms, Gmail, LinkedIn, and social media drafts, supporting 100+ languages and preserving tone while providing real‑time corrections for students, professionals, and writers.
Free
Wordvice AI provides real‑time grammar checking, paraphrasing, translation, summarization, plagiarism and AI‑content detection, plus citation generation across multiple languages. It integrates with Chrome and Word, supporting students, researchers, professionals, teams, and offers on‑demand human e
Freemium
- $8.45/mo
QuillBot is a writing and editing tool offering features such as paraphrasing, grammar and plagiarism checks, citation generation, and content creation assistance, all accessible through a Chrome extension or online platform.
Freemium
- $33/mo
WProofreader offers AI‑driven, multilingual spelling, grammar, and style checking for 20+ languages. It provides SDKs, an API, browser extensions, and CMS modules, with TLS encryption, GDPR compliance, on‑prem or AWS hosting, and customizable industry rules.
Freemium
Outwrite is an AI assistant that instantly corrects spelling, grammar, and punctuation across Chrome, Edge, Google Docs, and Word. It provides real‑time readability scores, offers style and paraphrasing suggestions, and converts passive to active voice in English, French, and Spanish.
Free
- $6.95/mo
Smart Online Notepad is a flexible writing tool that offers AI grammar correction, tone adjustment, real-time word counting, and easy note sharing. It supports multiple languages and has a user-friendly design with dark and light modes.
Free trial
AIGrammarChecker is a free AI-powered tool that instantly corrects grammar, spelling, and punctuation errors. It analyzes text structure and context to improve writing clarity and supports multiple languages via text input or file uploads.
Free
Grammar Checker is a free AI tool that corrects grammar, spelling, and punctuation errors. It also provides suggestions to improve your writing style and polish your text.
Free
editGPT is a Chrome extension that turns ChatGPT into a writing assistant. It provides real‑time grammar, style, and rewriting support in 80+ languages, preserves formatting, tracks changes, and manages revisions.
Free
- $10/mo
Scribbr offers academic writing support with professional editing, plagiarism detection, citation generation across styles, AI‑powered proofreading, paraphrasing, summarizing, sentence rewriting, and a Chrome extension for in‑browser citations, helping students and researchers produce polished manus
Freemium
TextGears is a grammar and spell checker with an API for automated proofreading, readability scoring, and text analysis. It supports multiple languages and offers both cloud-based and self-hosted deployment for integration into various business workflows.
Subscription
AI IELTS Writing Checker evaluates essays on grammar, vocabulary, cohesion, and task response, offering instant feedback and revision guidance. It also includes Speaking, Listening, and Reading simulators, plus an essay bank for ideas and progress tracking.
Free
TextAdviser delivers AI‑powered language tools: grammar checking, plagiarism detection, syntactic analysis, fast text generation, rewriting, tone humanization, summarization, and name/title creation. It supports English, Spanish, Portuguese, Italian, French, and German for writers, students, markete
Free
FuturePerfect scans every public page of a website for spelling and grammar errors in 30 languages, delivering instant alerts and a dashboard of correction suggestions. No code integration required—just a URL to keep content error‑free and professional.
Freemium
Rewrites text in seven styles—Simple, Creative, Formal, etc.—across 17 languages, preserving meaning while enhancing grammar, punctuation, and readability. Removes duplicate phrases for plagiarism‑free output and works with plagiarism/readability tools for students, writers, and SEOs.
Paid
- $3
ProWritingAid is an AI writing assistance tool that offers suggestions for grammar, style, and improvement with the touch of a button.
Freemium
Word Spinner is an AI‑powered writing assistant that improves tone, flow, and readability for blog posts, emails, ads, and web copy. It offers grammar checks, tone analysis, and a Chrome extension supporting 100+ languages.
Subscription
- $29/mo
Hemingway Editor analyzes text for readability, highlighting long or dense sentences, adverbs, and passive voice, suggests simpler wording, and—via Editor Plus—adds AI-assisted fixes, advanced grammar checks and tone controls for faster revision.
Free trial
Paraphrase Online is a free tool for rephrasing text, supporting multiple formats and languages. It features five paraphrasing modes to customize output while ensuring grammatical accuracy and preserving original meaning, ideal for avoiding plagiarism.
Freemium
Trinka AI is a privacy‑first grammar and language enhancement platform for academic and technical writing. It corrects grammar, punctuation, style, provides plagiarism checks, citation formatting, and multilingual support, integrating into Word, Chrome, and other editors.
Paid
- $20/mo
PunctuationCheck is an AI tool that instantly corrects punctuation, grammar, and spelling, offering manual or batch edits. It supports regional English variants, basic formatting, PDF export, and processes text locally for privacy.
Free
NoPlagio checks uploaded documents against 80 million academic articles and live web sources, supporting 129 languages. It gives similarity scores, color‑coded plagiarism types (citation, paraphrase, improper reference), source links, and protects privacy by never storing files.
Freemium
Textbuddy is an AI‑powered rewriter and plain‑English editor that flags long sentences, complex words, passive voice, and filler words, providing a readability score. It offers synonyms, CEFR language levels, keyword repetition stats, and supports over 50 languages.
Subscription
ParagraphAI offers real‑time grammar correction, one‑tap email drafting, and instant summarization of web pages and PDFs. It provides multilingual translation, customizable tone filters, a template library, and an instruction engine for repetitive tasks across mobile, desktop, and Chrome.
Free
L21 AI Proofreader enhances written content accuracy and contextuality of live events.
Freemium
ZeroGPT is a comprehensive AI tool suite offering advanced features for content detection, text refinement, and translation, including AI detection, plagiarism checking, humanization, and summarization.
Freemium
- $7.99/mo
AI Essay Checker spots AI‑generated content, grammar errors, and plagiarism in real time. It offers multilingual support, a rich text editor, and local processing for privacy, aiding students, teachers, writers, SEO pros, and legal professionals.
Freemium
Paraphrasing tool with 15 modes for 100+ languages - rephrases, rewords, rewrites, checks grammar, eliminates plagiarism
Free trail
iAsk.Ai delivers instant, factual answers to natural‑language questions from authoritative web sources, and offers essay drafting, advanced grammar checks, academic summarization, PDF analysis, image generation, URL bullet‑point briefs, and one‑click grammar correction. Accessible via browser extens
Freemium
- $9.95/mo
InstaText is an AI editing assistant that highlights suggestions for clarity, flow, word choice, and grammar. Users can accept or reject each change, select dialect, formality, or add custom terms. It works on Chrome, Gmail, Slack, Docs, Overleaf, and Word.
Paid
- $9.99/mo
AI-based plagiarism remover rewrites duplicate text while preserving context and readability, offering modes (Word Changer, Formal, Shorten), file upload/download, 15+ languages and integrated tools for checking, paraphrasing, grammar, summarizing and citation generation and export.
Free
Online Document Translator provides professional translations while preserving original formatting across various document types. It supports over 80 languages, offers batch processing, custom terminology, online editing, and ensures data privacy, making it ideal for individuals and teams.
Freemium
- $5
This AI paraphrasing tool lets users paste essays, articles, or sentences and receive a rewritten version within seconds. It preserves meaning, corrects grammar, removes duplicate phrasing, and ensures academic compliance without account creation.
Free
Reword Generator rewrites text using context‑appropriate synonyms while correcting grammar and punctuation. Paste or upload files (.txt, .doc, .pdf) and select tones such as Formal, Informal, Academic, or SEO. Supports up to 200 words per edit for academic or marketing content.
Paid
The MyEssai AI tool offers instant and specific feedback to improve essay quality by analyzing grammar, structure, and content. It's free to use with various pricing plans available for more extensive feedback.
Freemium
BulkCorrector segments large documents into ChatGPT‑sized chunks to auto‑correct grammar, spelling, and punctuation in one workflow. It also supports bulk translation, custom prompts, a prompt library, and a ten‑session history log via a copy‑paste web interface.
Subscription
- $29
Originality.ai evaluates text for AI generation, plagiarism, factual accuracy, readability, grammar, and SEO. The Chrome extension and web app enable on‑page checks, bulk scanning, PDF uploads, and API integration for writers and editors.
Free trial
- $12.95/mo
Just Rewrite is an AI‑powered editor that paraphrases content in over 100 languages. Users select style options—grammar fix, professional, casual, emojis, hashtags, expansion, or condensation—to produce instant, context‑aware rewrites tailored to the target audience.
Freemium
RewriteBar is a macOS menu bar AI assistant that enhances writing by correcting grammar, changing styles, and translating text across applications. It supports 30 languages, streamlining the writing process for diverse users with a user-friendly interface.
Free trial
Resumecheck.net uses GPT‑4 to analyze resumes in PDF, Word, Pages, or RTF up to 20 MB. It corrects over 20 common errors, refines grammar, suggests structural changes, auto‑generates sections, cover letters, and matching emails, and exports polished PDFs.
Paid
- $7.9
EssayChecker is an AI-driven tool for grading essays that provides instant feedback, detailed error analysis, and customizable rubrics. It enhances writing skills through grammar checks and personalized improvement suggestions, suitable for educators, students, and professionals.
Free trial
MyPerfectWords connects students and researchers with qualified writers holding advanced degrees across 140+ disciplines. A three‑step review ensures proper structure, citations, and formatting. Each submission includes Turnitin and AI originality checks. 3‑hour urgent turnaround and 24/7 chat suppo
Paid
OpenL Translate converts text, PDFs, images, and audio into 100+ languages, supporting dialects and emojis. Fast mode delivers short translations; Advanced mode offers precision for legal documents. It handles 150k characters and 40 scanned PDFs daily, processing locally for privacy.
Subscription