Best Grammar checker AI tools

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.

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 editing.

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.

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.

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.

Thesify is an academic assistant that offers feedback on theses, dissertations, and grant proposals, evaluating strength, evidence, clarity, and rubric alignment. It provides instant citation support from 200 million references and delivers article summaries, semantic literature search, and paper digest tools.

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.

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.

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.

Revise is an AI editor for proofreading, grammar and style refinement that preserves author voice, offers customizable style rules and edit intensity, model choices, tracked accept/reject edits, in-document chat, speech-to-text, and team versioning.

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.

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.

Read Easy.ai transforms complex text into readable content for users. Word/Outlook add‑ins analyze manuscripts, while a Chrome extension simplifies webpages in multiple languages. Developers embed its API in React, Vue, Swift, WordPress for readability scoring and dyslexia‑friendly formatting.

OASIS is a macOS app that converts spoken words to editable text, offers AI‑driven rewrites for clarity and style, multiple format options, review transcript, and writing history management, and quick toggling between recording, editing, and rewriting functions.

IELTSWriting.ai is an AI essay checker providing instant IELTS-aligned band scores (Task Achievement, Coherence, Lexical Resource, Grammar), line-by-line error highlights, examiner-style feedback, rewrite prompts, personalized study plans, CEFR checks, diagnostics, and task templates.

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.

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.

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.

L21 AI Proofreader enhances written content accuracy and contextuality of live events.

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.

Write Brain is a Chrome extension that corrects grammar, removes filler, shortens sentences, and clarifies text on social and email sites. It adds descriptive language, instant concise suggestions, real‑time translation, and auto‑emoji cues for engagement.

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.

Suggestcat is a web-based AI tool that detects grammatical and stylistic errors in real-time, offering corrections and suggestions. It supports popular text editors and includes an admin dashboard, enhancing editing efficiency for developers and content creators.

Cmd-C.app is a macOS tool that offers real-time grammar, punctuation, and style corrections via a keyboard shortcut. It integrates with various platforms and provides detailed reviews and explanations for improved writing accuracy and productivity.

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.

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.

Scraib.app corrects grammar, tone, and style in any macOS app, rewriting selected text with a keyboard shortcut. Set global or per-app style rules and use preferred AI providers or a local runtime for consistent, in-context edits.

DraftCheck automates document proofreading and revision, offering grammar and spelling corrections, style and clarity suggestions, and rewrite options. In-document add-ons, collaborative change tracking, comment threads, permissions, and revision history streamline team editing and publishing.

ieltswritingchecker.org is an AI-powered IELTS writing evaluator that instantly scores Task 1 and Task 2 responses across all question types, providing a detailed band report with inline corrections, task-rule checks, and practical improvement suggestions.

GrammarChecker.AI is an online grammar and writing tool that detects grammar, spelling, punctuation, and style issues, offering sentence-level suggestions and AI-based analysis to improve text quality. It also provides formatting helpers, readability scoring, and social-post length recommendations without requiring installation or account setup.