AI Grammar Checkers - Directory w/ AI Reviews

Clear, correct writing requires more than spell-check — it needs understanding of grammar, style, and context. LanguageTool and WhiteSmoke cover grammar and basic style across multiple languages, while ProWritingAid delivers deep style analysis for fiction and long-form writing. Wordtune and QuillBot add rewriting capabilities, suggesting alternative phrasings that improve clarity, tone, or conciseness.

LanguageTool 1 4.6 New LanguageTool Freemium Free Plan API Open Source 2 reviews LanguageTool is an open-source multilingual grammar, style, and spell checker powered by AI that supports over 30 languages including English, Spanish, German, French, and Portuguese. The tool goes beyond basic grammar checking to detect stylistic issues, punctuation errors, commonly confused words, ProWritingAid 2 4.6 New ProWritingAid Freemium Free Plan API 1 review ProWritingAid is a comprehensive AI writing assistant that combines grammar checking with in-depth style analysis, providing over 20 writing reports covering readability, sentence structure, overused words, pacing, and dialogue. The platform is particularly popular among authors and long-form writer Sapling 3 4.3 New Sapling Freemium Free Plan API 1 review Sapling is an AI grammar checking and writing assistant built specifically for customer-facing teams, providing real-time autocomplete suggestions, error correction, and response templates within CRM and messaging platforms. The tool integrates directly with Salesforce, Zendesk, Freshdesk, Slack, an Trinka AI 4 4.3 New Trinka AI Freemium Free Plan API 1 review Trinka AI is an AI-powered grammar and writing assistant specifically designed for academic and technical writing. It goes beyond basic grammar checking to correct subject-verb agreement, article usage, and technical phrasing unique to scientific publications. Trinka also offers consistency checks, Writer 5 4.3 New Writer Paid API 1 review Writer is an enterprise AI writing platform that includes powerful grammar checking alongside brand voice enforcement, style guide compliance, and terminology management. Its AI engine catches grammar, spelling, and punctuation errors while ensuring content adheres to organizational writing standard QuillBot 6 4.3 New QuillBot Freemium Free Plan Enterprise 2 reviews QuillBot's Grammar Checker uses AI to detect and correct grammatical errors, punctuation mistakes, spelling issues, and stylistic inconsistencies in real time. The tool provides detailed suggestions with explanations for each correction, helping users not only fix errors but also understand the unde Wordtune 7 4.1 New Wordtune Freemium Free Plan Enterprise 2 reviews Wordtune includes grammar and spelling correction capabilities alongside its rewriting features, identifying and fixing errors in real time as users write. The tool provides contextual grammar suggestions that go beyond simple rule-based checking, using AI to understand sentence meaning and suggest WhiteSmoke 8 3.2 New WhiteSmoke Paid 1 review WhiteSmoke is a grammar checking and writing enhancement tool that uses AI and NLP algorithms to detect and correct errors in English writing. It provides grammar, spelling, punctuation, and style corrections along with a built-in translator supporting over 50 languages. WhiteSmoke includes template