Alternatives · 2026
Best NoPlagio Alternatives in 2026
24 alternatives · 18 with a free plan · Updated
What are the best NoPlagio alternatives?
The best NoPlagio alternatives for AI Content Detector in 2026 are Plag (check documents for plagiarism and AI-generated content across 129…, free), Originality.ai (AI content detector and plagiarism checker, paid) and Essayget (AI essay writer and humanizer, free). 18 of the 24 listed alternatives have a free or freemium plan.
Looking for something other than NoPlagio? Below are 24 alternatives in AI Content Detector, AI Grammar Checker and AI Plagiarism Checker, all closely matched, ranked by how much they overlap with NoPlagio. NoPlagio itself is free. Each entry shows what the tool does, what it shares with NoPlagio, its key features and pricing.
What is NoPlagio?
Each sentence gets its own AI percentage in NoPlagio's AI Detection Premium plan, alongside an overall document score, an AI or human verdict and a detailed report. NoPlagio is a plagiarism checker and AI content detector that scans text for similarity to existing sources and for machine-written passages.
- Pricing
- Free
Key features of NoPlagio
- Real-Time Check
- Pay as you go 1 Document Check
- Additional Services for Educators 20 extra documents / month
NoPlagio alternatives compared
| Tool | Pricing | Shared with NoPlagio | Match |
|---|---|---|---|
| NoPlagio | Free | — | Original |
| Plag | Free | AI Content Detector, AI Plagiarism Checker, Humanizer AI | Strong match |
| Originality.ai | Paid | AI Content Detector, AI Grammar Checker, AI Plagiarism Checker, Humanizer AI | Strong match |
| Essayget | Free | AI Content Detector, AI Plagiarism Checker, Humanizer AI | Strong match |
| Plagiarism Remover | Paid | AI Content Detector, AI Grammar Checker, AI Plagiarism Checker, Humanizer AI | Strong match |
| PlagiarismSearch.com | Paid | AI Content Detector, AI Grammar Checker, AI Plagiarism Checker | Strong match |
Top 24 alternatives to NoPlagio
- #1
Check documents for plagiarism and AI-generated content across 129 languages with detailed similarity reports.
In common with NoPlagio: AI Content Detector, AI Plagiarism Checker, Humanizer AI
- Online plagiarism checker and AI detector for students and educators
Pricing: free
- #2
Originality.ai is an AI content detector and plagiarism checker that scans text for AI-generated writing and copied passages.
In common with NoPlagio: AI Content Detector, AI Grammar Checker, AI Plagiarism Checker, Humanizer AI
- Pay as you go One time on-demand pricing
- Get 3
- Need more? You can buy additional credits as needed under "Settings" in your account
Pricing: paid, from $30
- #3
Essayget is an AI essay writer and humanizer that rewrites AI text, adds citations, and offers a free Turnitin AI detection report.
In common with NoPlagio: AI Content Detector, AI Plagiarism Checker, Humanizer AI
- Bypasses top AI detectors
- Provides plagiarism-free content
- Generates accurate citations and reference pages
Pricing: free
- #4
AI plagiarism remover that rewrites pasted text to make it unique, with a plagiarism checker included in paid plans.
In common with NoPlagio: AI Content Detector, AI Grammar Checker, AI Plagiarism Checker, Humanizer AI
- AI-based tool to remove plagiarism and make content unique
Pricing: paid, from $6.50
- #5
Online plagiarism checker and AI content detector that scans submitted text for copied passages and AI-generated writing.
In common with NoPlagio: AI Content Detector, AI Grammar Checker, AI Plagiarism Checker
- Online plagiarism and AI content checker with various text analysis tools
Pricing: paid, from $9.95
- #6
AI writing feedback tool that gives students instant feedback on discussions and essays, and helps educators with grading.
In common with NoPlagio: AI Content Detector, AI Grammar Checker, AI Plagiarism Checker
- Enhances critical thinking and writing skills
- Provides instant feedback on discussions and essays
- Streamlines grading for educators
Pricing: free
- #7
Trinka AI is an online grammar checker and AI proofreading tool for academic and technical writing that protects private data.
In common with NoPlagio: AI Content Detector, AI Grammar Checker, AI Plagiarism Checker, AI Proofreading
- AI writing assistant for grammar correction and language enhancement
Pricing: free
- #8
AI Checker Tool is an AI content detector that flags text likely written by models like ChatGPT and also runs plagiarism checks.
In common with NoPlagio: AI Content Detector, AI Plagiarism Checker
- Accurately identifies AI-generated content
- Offers plagiarism checking
- Supports multiple AI models like ChatGPT and Google Bard
Pricing: free
- #9
AI paraphrasing tool that rewrites sentences, paragraphs, and essays in four modes to help reduce plagiarism while keeping the original meaning.
In common with NoPlagio: AI Content Detector, AI Grammar Checker, AI Plagiarism Checker, Humanizer AI
- It aims to eliminate plagiarism without altering the original meaning
Pricing: free
- #10
Rephrasy is an AI humanizer and AI content detector that rewrites AI-generated text and checks whether it reads as machine-written.
In common with NoPlagio: AI Content Detector, AI Plagiarism Checker, Humanizer AI
- AI humanizer and detector to bypass AI detection and create undetectable content
Pricing: free plan, paid plans from $199
- #11
AI content detector that checks text, documents, and PDFs for AI-written text, with a humanizer plus plagiarism and readability checks.
In common with NoPlagio: AI Content Detector, AI Plagiarism Checker, Humanizer AI
- It features an AI Checker
- Plagiarism Checker
Pricing: free
- #12
Paid AI humanizer that rewrites AI-generated text to reduce AI detection flags, starting at $9.99 a month.
In common with NoPlagio: AI Content Detector, Humanizer AI
- Humanizes AI text to make it undetectable by AI detectors
Pricing: paid, from $9.99
- #13
Online AI rewriter that paraphrases sentences, essays and articles in several tones, with options to shorten text or upload TXT, DOC, DOCX and PDF files.
In common with NoPlagio: AI Grammar Checker, AI Plagiarism Checker, AI Proofreading, Humanizer AI
- It allows users to rewrite sentences
- It also supports uploading files in TXT
- DOCX
Pricing: free
- #14
AI humanizer that rewrites AI-generated text to sound more human, with an AI detector and plagiarism checker.
In common with NoPlagio: AI Content Detector, AI Plagiarism Checker, Humanizer AI
- BypassAI humanizes AI text
Pricing: free
- #15
GPTZero is an AI detector that scans text to flag content likely written by models like ChatGPT, with options for individuals and teams.
In common with NoPlagio: AI Content Detector, AI Grammar Checker, AI Plagiarism Checker
- AI detector for identifying text generated by AI models like ChatGPT
Pricing: paid, from $8.33
- #16Q
QuizBot.ai is an AI question generator that creates quiz questions of several types from multiple sources.
In common with NoPlagio: AI Content Detector, AI Grammar Checker, AI Plagiarism Checker, AI Proofreading
- AI-powered question generator for creating diverse question types from multiple sources
Pricing: paid, from $9.50
- #17
Free online tool that checks text for plagiarism, paraphrasing, and AI-generated content by comparing it against billions of webpages.
In common with NoPlagio: AI Content Detector, AI Plagiarism Checker
- It compares text against billions of webpages to identify plagiarism and paraphrasing
- It is suitable for bloggers
Pricing: free
- #18
Free web-based AI content detector that gives an AI probability percentage and plagiarism check for ChatGPT, Gemini and Claude text.
In common with NoPlagio: AI Content Detector, AI Plagiarism Checker
- It uses advanced algorithms and APIs to provide an AI probability score percentage
Pricing: free
- #19
PaperRed is a free online plagiarism checker that adds AI content detection and paraphrasing tools for checking and revising written text.
In common with NoPlagio: AI Content Detector, AI Plagiarism Checker
Pricing: free
- #20G
Gptsafe is an AI content detector that estimates whether text was AI-generated and can rewrite it to sound more human.
In common with NoPlagio: AI Content Detector, AI Plagiarism Checker, Humanizer AI
- High accuracy rate (95%) in detecting AI-generated text
- User-friendly interface with simple steps for analysis
- Option to rewrite AI-generated text to sound more human-like
Pricing: free
- #21
Detector.io is an online AI writing detector that scans a text and points to the passages that may read as AI-generated.
In common with NoPlagio: AI Plagiarism Checker, Humanizer AI
- An AI detector tool that scans and highlights AI-written content
Pricing: free
- #22
AI rewriter, grammar checker and AI detector that runs as a native Mac and Windows app, working inside any application you already use.
In common with NoPlagio: AI Content Detector, AI Grammar Checker, AI Plagiarism Checker
- Outperforms Grammarly and QuillBot in AI detection and writing assistance
- Native app for Mac & Windows
- Offers instant rewrites
Pricing: free
- #23
Essay Grader AI is an essay grading tool for teachers that gives feedback, summaries, and plagiarism and AI content checks on student writing.
In common with NoPlagio: AI Content Detector, AI Grammar Checker, AI Plagiarism Checker
- Dedicated user groups and webinars
- Priority video support
Pricing: free plan, paid plans from $6.99
- #24
Scribbr is an academic writing platform offering proofreading, plagiarism checking, citation generation, and AI paraphrasing tools for students and researchers.
In common with NoPlagio: AI Grammar Checker, AI Plagiarism Checker, AI Proofreading, Humanizer AI
- Comprehensive suite of tools for academic writing
- Professional proofreading and editing services
- Accurate plagiarism detection
Pricing: free
How we picked these NoPlagio alternatives
We rank tools by how closely they match NoPlagio: tools that share more of its categories rank first, then tools whose main category, tags and description overlap with it, then community votes and views. Pricing type and features come from each product's SoftwareVital listing. Admins can pin or remove tools from this list.
Frequently asked questions
What are the best alternatives to NoPlagio in 2026?
The closest alternatives to NoPlagio are Plag, Originality.ai, Essayget, Plagiarism Remover and PlagiarismSearch.com. They are ranked by how many categories and tags they share with NoPlagio and how similar their descriptions are, then by community votes and views on SoftwareVital.
What is the closest alternative to NoPlagio?
Plag is the closest match because it shares AI Content Detector, AI Plagiarism Checker and Humanizer AI with NoPlagio. It is free.
Are there free alternatives to NoPlagio?
Yes. 18 of the 24 alternatives have a free or freemium plan, including Plag (free), Essayget (free), Packback (free), Trinka AI (free) and AI Checker Tool (free). NoPlagio is free.
Which NoPlagio alternatives are paid or enterprise tools?
Originality.ai (paid), Plagiarism Remover (paid), PlagiarismSearch.com (paid), Ryter Pro (paid) and GPTZero (paid) use paid or enterprise pricing, which usually means more support and admin options for teams.
How does NoPlagio compare to Plag?
Plag overlaps with NoPlagio in AI Content Detector, AI Plagiarism Checker and Humanizer AI. Its listed features include online plagiarism checker and AI detector for students and educators. Pricing: free. Open the side-by-side compare page for a full breakdown.
What category is NoPlagio in?
NoPlagio is listed under AI Content Detector on SoftwareVital. Browse that category to see more tools in the same group.