Best ZeroGPT alternatives

1. Scribbr

Freemium

Scribbr combines AI writing tools with academic editing services and reference resources for students working on essays, papers, and dissertations. Its tools include an AI Proofreader, AI Detector, paraphraser, grammar checker, summarizer, and AI Humanizer. Students can use these alongside plagiarism checking and…

• AI proofreading and grammar checks
• AI content detection
• Rewriting and summarization

Best for Students, Teachers and professors

2. AI Detector

FreemiumFrom $9/mo

AI Detector checks writing for signs of AI-generated content and presents an overall score alongside sentence-level results. Users can paste text, analyze documents, or submit a URL. Color-coded highlighting distinguishes passages assessed as likely AI-generated, mixed, or likely human-written, helping users inspect…

• Multiple-detector comparison
• Sentence-level analysis
• Text, document, and URL scanning

Best for Educators, Students, Content writers, Businesses

3. JustDone

PaidFrom $19.99/mo

JustDone is an AI writing and study workspace that combines text generation, revision, and content checks. It includes a paraphraser, summarizer, grammar checker, plagiarism checker, AI detector, and text humanizer. Students and learners can use these tools to draft material, revise wording, check for potential…

• Writing and rewriting tools
• Originality and AI checks
• Chat with files and websites

Best for Students and learners, Writers and content creators

4. GPTZero

FreemiumFrom $45.99/mo

GPTZero checks writing for signs of AI-generated content, including documents that mix human and AI text. Users can paste text, upload files, or import documents from Google Drive to receive an estimated AI percentage and sentence-level highlights. It supports English, German, Portuguese, French, and Spanish, with…

• AI content detection
• Writing replay
• Plagiarism checking

Best for Educators, Students, Publishers and writers, Recruiters

5. GradPilot

Freemium

GradPilot is an AI admissions essay reviewer that evaluates writing against application-specific rubrics. Applicants choose a rubric, paste their essay and request either a free Quick Review or a paid Full Review. It covers Common App essays, UC Personal Insight Questions, supplemental essays, transfer applications…

• Application-specific rubrics
• Scores and revision suggestions
• AI-writing detection

Best for College applicants, Graduate and professional applicants, Counselors and mentors

6. Turnitin

Contact for pricing

Turnitin is a suite of education tools for academic integrity, writing feedback, and assessment. Educators can check student submissions for text similarity and signs of AI-generated writing, while researchers can scan documents before publication. Turnitin works with more than 16,000 institutions worldwide and…

• AI writing detection
• Text similarity checks
• Writing process insights

Best for Educators, Educational institutions, Researchers

7. GPTinf

FreemiumFrom $4.99/mo

GPTinf bundles several text tools into one workspace: a humanizer that rewrites AI-generated drafts, a detector that scores text for AI signals, a paraphraser, a plagiarism checker, a readability checker, a grammar checker and an essay writer. You paste or upload a draft, pick the tool you need, and get results with…

• AI Humanizer
• AI Detector
• Paraphraser

Best for Students, Content writers and freelancers, Educators, Marketing teams

8. Undetectable AI

Free trial

Undetectable AI combines AI-content detection with tools for rewriting and refining text. Users can paste writing or upload a file, check which sentences are flagged as potentially AI-generated, and use the humanizer to revise the wording. Its rewriting tools adjust sentence structure, vocabulary, and tone to make…

• Sentence-level AI detection
• AI text humanizer
• Image and audio detection

Best for Students and educators, Content writers, Professionals, Business owners

9. Sightengine

FreemiumFrom $29/mo

Sightengine provides AI APIs for moderating images, videos, text, and audio. Developers can use it to screen user uploads, enforce platform rules, and detect unwanted content across more than 150 visual moderation classes, including violence, hate, weapons, and self-harm. Text checks also cover personal information…

• Multimodal content moderation
• AI-generated media detection
• Embedded text and QR checks

Best for Platform developers, Trust and safety teams, Marketplaces, Identity and onboarding teams

10. MyDetector

FreemiumFrom $6.99/mo

MyDetector is a web-based tool that estimates whether text was written by a person or generated by models such as ChatGPT, Gemini, and Claude. Users can paste text or upload TXT, DOCX, PDF, and PowerPoint files. Results include an AI detection score, highlighted sentences, sentence-level analysis, and vocabulary…

• Sentence-level detection
• Document uploads
• Detection model selection

Best for Educators, Writers and editors, Marketing teams, Business document reviewers