grammar checker 4

AI writing assistant for grammar correction and language enhancement, tailored for academic writing. Trinka AI is a next-gen grammar correction and language enhancement writing assistant designed for academic and technical writing. Trinka goes beyond grammar to help professionals and academics ensure professional, concise, and engaging writing. Trinka is an online grammar checker and language correction AI tool for academic, technical, and formal writing that protects your private data.

Free online tool for grammar, spelling, punctuation, and style checks Grammar Checker is a free online writing tool that helps you catch grammar, spelling, punctuation, and style issues before you publish or send text. It also includes helpful writing utilities like an AI detector, thesaurus, title capitalization tools, and readability stats.

WordfixerBot: paraphraser, grammar checker, summarizer, and text comparison tool. WordfixerBot is a paraphraser, grammar checker, text summarizer, and text comparison tool. It offers a paraphrasing tool that helps users quickly and accurately rephrase texts, sentences, articles, paragraphs, papers, or documents. The AI paraphrasing tool uses a modern AI model to produce human-like text while keeping the original meaning intact. It also offers multiple tones for different writing styles and audiences.

TextSight is an AI detector and AI humanizer that scores any text from 0 to 100 for AI-generated writing, highlights the exact sentences that read as machine-written, and rewrites them so they sound human. It bundles 21+ writing tools — plagiarism checking, grammar, readability, paraphrasing, summarization and translation — into one place, so you can check a draft and fix it without switching between five different sites. TextSight is an AI content detection and writing improvement platform built for students, freelance writers, educators, marketers, SEO teams and agencies. Paste text or upload a document and TextSight returns an AI detection score from 0 to 100, with the sentences that look machine-generated highlighted directly in your draft. Rather than giving you a single verdict, it explains the signals behind the score — repeated sentence rhythm, predictable word choice, filler transitions, uniform paragraph length — so you can see why a passage reads as AI. The built-in humanizer then rewrites those flagged sentences to read naturally, and you can re-scan straight away to confirm the score has moved. This scan, rewrite and re-scan loop is the core workflow, and it is what separates TextSight from detectors that only give you a percentage and leave you guessing. TextSight detects output from ChatGPT, Claude, Gemini and other large language models. Alongside detection and humanization it includes grammar and readability checking, plagiarism checking, paraphrasing, summarization, translation, vocabulary improvement and word counting — 21+ tools in total, most of them usable without an account. The free tier includes 20,000 AI detection characters per month, 3 document scans and 2,000 humanizer words, with no card required. Paid plans start at $9.99 per month and scale up to an Enterprise tier with API access, team seats and bulk scanning. TextSight runs in any browser and is also available as iOS and Android apps. Common alternatives people compare TextSight against: GPTZero, Originality.ai, ZeroGPT, Copyleaks, Winston AI, QuillBot and Undetectable.ai.