GPTZero is an AI detection platform for identifying machine-generated text. It combines a text detector with a Chrome extension, a plagiarism checker, writing-process verification, and educator-focused classroom tools.
機能と用途で選んだ、Copysafe AI の代替ツール 12 件。
| 順位 | ツールとキャッチコピー | 公式ドメイン | 月間訪問数 | 前月比成長率 | 料金モデル | 主要市場 | 評価 | 比較 |
|---|---|---|---|---|---|---|---|---|
| ● |
| Copysafe AI |
| copysafe.co |
| 0 |
| 0 (0%) |
| 無料トライアル、有料 |
| グローバル |
| — |
| プロフィール |
| 1 | GPTZero | gptzero.me | 2324.7万 | 569.95万 (+32.5%) | フリーミアム、有料 | アメリカ合衆国 | 4.1 | 比較 |
| 2 | PlagiarismCheck.org | plagiarismcheck.org | 36.84万 | 2.11万 (+6.1%) | 有料 | 南アフリカ | 4.3 | 比較 |
| 3 | Originality.ai | originality.ai | 204.96万 | 5.57万 (+2.8%) | 有料 | アメリカ合衆国 | 4 | 比較 |
| 4 | ZeroGPT | zerogpt.com | 3286.45万 | 541.1万 (+19.7%) | フリーミアム、有料 | アメリカ合衆国 | 3.8 | 比較 |
| 5 | Quetext | quetext.com | 28.01万 | 3.45万 (+14.1%) | フリーミアム | アメリカ合衆国 | 4.1 | 比較 |
| 6 | Isgen AI 検出ツール | isgen.ai | 90.19万 | 4.94万 (+5.8%) | フリーミアム | 韓国 | 3.8 | 比較 |
| 7 | PlagiarismSearch.com | plagiarismsearch.com | 8.31万 | 4.37万 (+111.2%) | フリーミアム、無料トライアル、有料 | ウクライナ | 4 | 比較 |
| 8 | paraphrasing.io | paraphrasing.io | 37.61万 | 10.47万 (+38.6%) | フリーミアム | インドネシア | 3.8 | 比較 |
| 9 | Copyleaks | copyleaks.com | 240.25万 | -39.44万 (-14.1%) | 有料、料金は要問い合わせ | アメリカ合衆国 | 4.4 | 比較 |
| 10 | Parafrasear Textos | parafraseartextos.net | 24.81万 | -3.13万 (-11.2%) | フリーミアム | ペルー | 4 | 比較 |
| 11 | CopyFind | copyfind.ai | 3647 | 962 (+35.8%) | フリーミアム | アメリカ合衆国 | 4 | 比較 |
| 12 | AIPlagiarismChecker | aiplagiarismchecker.io | 2649 | -2086 (-44.1%) | フリーミアム | インド | 3.8 | 比較 |
GPTZero is an AI detection platform for identifying machine-generated text. It combines a text detector with a Chrome extension, a plagiarism checker, writing-process verification, and educator-focused classroom tools.
学校・大学・チーム向けの高精度な盗用およびAI検出
1回のスキャンでAI検出・盗用チェック・コンテンツ品質評価を完了
ZeroGPT is an AI content detection platform with a text AI detector, AI image and video detectors, AI humanizer, plagiarism checker, and a set of writing tools including paraphraser, summarizer, grammar checker, translator, and citation helper.
ZeroGPT is an AI content detection platform with a text AI detector, AI image and video detectors, AI humanizer, plagiarism checker, and a set of writing tools including paraphraser, summarizer, grammar checker, translator, and citation helper.

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.
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.
文単位の分析に対応した多言語 AI 検出ツール

出典リンク付きの盗用チェックと AI コンテンツ検出レポート
出典リンク付きの盗用チェックと AI コンテンツ検出レポート
paraphrasing.io is a browser-based AI paraphrasing tool that rewrites essays, emails, sentences, and paragraphs in seven modes, backed by a suite of related writing utilities.
paraphrasing.io is a browser-based AI paraphrasing tool that rewrites essays, emails, sentences, and paragraphs in seven modes, backed by a suite of related writing utilities.
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
1回のスキャンで盗用チェックとAIコンテンツ検出

A browser-based originality checker that scans pasted text or uploaded documents and returns a similarity report in seconds, with no signup required to run a first check.
A browser-based originality checker that scans pasted text or uploaded documents and returns a similarity report in seconds, with no signup required to run a first check.