Nativer

QuillBot is an AI writing suite best known for its paraphrasing tool. Users paste or type text and have it rewritten in different tones and styles, while companion tools handle grammar checking, summarizing, citations, plagiarism checks and AI content detection. It is widely used by students, writers and professionals.

あらゆるテキストをチェック・修正・改善するAIライティングアシスタント

学術校正・盗用チェック・AI ライティングツールを一つの場所に

Quetext is an online writing-integrity platform built around its DeepSearch™ engine, combining a plagiarism checker, AI content detector, grammar checker, summarizer, humanizer, citation generator and paraphrasing assistant in one dashboard. It is used by students, teachers, copywriters and content teams to confirm that a piece of writing is original, human-written and properly sourced before it is submitted or published.

特化型100以上の言語に対応したAI言い換え・盗用チェック・推敲ツール

Plagiarism Remover is a free online tool that rewrites pasted text or uploaded documents to reduce duplication, offering four modes plus multilingual support.

特化型書き換え・ヒューマナイズ・盗用除去に対応するスペイン語AIパラフレーズ

特化型Trinka is a privacy-first AI writing assistant built for academic and technical writing. Beyond grammar, it handles paraphrasing, consistency checks, file proofreading for Word and LaTeX, citation formatting and quality checks, plagiarism and AI detection, journal finding, and translation across 30+ languages.

Wordtune is an AI writing assistant from AI21 Labs that rewrites and tightens your sentences in one click, checks grammar, sums up documents and translates other languages into natural English.

特化型可読性と文法のフィードバックで、力強く明快な文章を

Reescribirtextos.net is a free Spanish-language AI rewriter that paraphrases text, changes words and removes plagiarism while keeping the original meaning.

特化型100以上の言語・18モードに対応する無料AIパラフレーズツール