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Plagiarism Checker Software with API (2026)

Last updated: January 2026

Why are APIs important for plagiarism checker software users?

Based on GetApp's analysis of verified user reviews collected between July 2021 and August 2024.

An API enables plagiarism checker software to integrate seamlessly with various platforms, offering real-time content analysis, efficient error detection, and enhanced productivity by automating writing corrections and ensuring content originality. Of the 77 reviewers who rated API, 79% rated this feature as important or highly important.

Key features of plagiarism checker software based on insights from 1238 verified reviews

  • Grammar Check: Reviewers highlight the effectiveness of grammar check for real-time error detection and enhancing clarity, professionalism, and writing quality. 100% of reviewers rated this feature as important or highly important.
  • Spell Check: Users value spell check for its accuracy in identifying and correcting spelling errors, ensuring professional and error-free communication. 99% of reviewers rated this feature as important or highly important.
  • Text Editing: Reviewers appreciate text editing for its real-time suggestions, alternative word choices, and ease of refining documents across various contexts. 94% of reviewers rated this feature as important or highly important.
  • Text Similarity Detection: Users find text similarity detection crucial for identifying duplicated content, ensuring originality, and avoiding unintentional plagiarism. 90% of reviewers rated this feature as important or highly important.
  • Collaboration Tools: Reviewers mention that collaboration tools enhance team productivity through real-time document sharing, editing, and maintaining consistent communication. 82% of reviewers rated this feature as important or highly important.
  • Reporting & Statistics: Users appreciate reporting and statistics for providing insights into writing quality, tracking progress, and helping improve communication and productivity. 81% of reviewers rated this feature as important or highly important.
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16 software options

Grammarly Business logo

Proofreader, plagiarism checker & tone detection solution

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Grammarly Business helps enterprises generate grammatically correct content across email, web pages, social media posts, academic papers & more. AI technology and natural language processing help users improve content readability, word choice, and writing style via real-time suggestions.

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Grammar checker, manuscript editor, & writing trainer

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ProWritingAid is a web-based grammar checking, manuscript editing, and personal writing solution designed to help fiction/non-fiction writers, bloggers, students, and content writers improve style, eliminate errors, visualize sentence variations, and more within written content.

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Cloud Assess logo

Upskill in the Flow of Work

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Cloud Assess ensures assessment integrity with built-in plagiarism detection and quality controls. Securely verify learner submissions, maintain compliance, and streamline audits—all within a paperless, automated LMS that supports scalable, competency-based training.

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Copyleaks logo

Ensuring AI governance and compliance.

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We’re a leading AI text analysis platform dedicated to empowering businesses and educational institutions as they navigate the ever-evolving landscape of genAI through responsible AI innovation, balancing technological advancement with integrity, transparency, and ethics.

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PlagiarismCheck.org logo

Powerful plagiarism and ChatGPT detector.

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PlagiarismCheck.org advanced algorithms detect similarities and AI tools usage. It's comprehensive report, available for more than 15 languages, shows the percentage of human-written or AI-generated content, indicates authorship and checks grammar and spelling.

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iThenticate logo

Plagiarism checker for institutions, researchers, publishers

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iThenticate by Turnitin is a plagiarism checker tool for academic institutions, researchers, and publishers. It can find similarities in content when compared to top-cited journals and other online sources. iThenticate supports file upload in multiple formats, including DOC, DOCX, PDF, plus others.

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Originality.AI logo

AI content detection and plagiarism checker tool

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Originality.AI is a content quality control tool designed for web publishers, content marketing agencies, and writers that allows users to identify AI-generated content and ensure the authenticity of their published material.

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EasyBib logo

Proofreading tool for generating bibliographies

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EasyBib is a cloud-based proofreading tool designed to help educational institutions create bibliographies, detect plagiarism issues, identify grammatical errors, and improve overall writing style using various suggestions. The centralized dashboard allows students to import academic papers.

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AIDetectPlus logo

AI detector & humanizer tool that works with essays & blogs

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AIDetectPlus is an AI detector and humanizer tool that works with essays, blogs, and papers. It is designed to help students, teachers, professors, and marketers detect and humanize AI-generated content. The tool provides detailed reports on the AI content in a given text and allows users to quickly humanize the content with just a click of a button.

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Trinka logo

AI-enabled grammar checker and language correction tool

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Trinka is a cloud-based writing assistant that uses Artificial Intelligence (AI) to help professionals in academic institutions, media and publishing houses, language service providers, marketing agencies, and businesses across the life sciences industry.

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Check Plagiarism logo

Ensuring originality with precision and ease.

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Check-Plagiarism offers a free online plagiarism checker tool that helps students, writers, and content creators detect plagiarism with 100% accurate results. The tool scans text against billions of web pages and online resources, providing a detailed report with percentages to identify unique and plagiarized content. It supports multiple file formats and offers sentence-based checking, enhanced reporting, and relevant tools like a paraphrasing tool and citation generator.

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Plagium logo

Plagiarism checker with Google Docs integration

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Plagium is a web-based plagiarism detection tool that helps businesses across all industries ensure the originality of written content. The solution offers quick text search, deep text search, and complete file search and provides summary reports to provide insight into any instances of plagiarism.

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Winston AI logo

AI content detection and plagiarism checker solution

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Winston AI is a cloud-based AI content detection and plagiarism checker solution that helps users ensure the integrity and originality of digital content.

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PlagScan logo

Web application for detecting plagiarism in documents

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PlagScan is a web application designed to check for plagiarism on digital documents. The software is available for download as a desktop, mobile, and browser-based SaaS web app. It caters to academic facilities, students, and content writers.

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Advacheck logo

Plagiarism checker software

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Advacheck is a cutting-edge system that effectively identifies text and image similarities in scientific and student papers, catering to academic, corporate, and research communities worldwide. With comprehensive cross-language text analysis in various languages, Advacheck ensures accurate results. It goes beyond the text, detecting plagiarized images to protect visual content creators. Additionally, the system scrutinizes AI-generated fragments, keeping up with deep learning models.

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Compilatio logo

Plagiarism and AI Content Detector

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An anti-plagiarism programme that is flexible and customised for each educational entity.

With its comprehensive program, Compilatio promotes plagiarism prevention by providing institutions with: AI-generated content detector, similarity detection software, real and ongoing support, etc.

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