# paperred.com vs ZeroGPT paperred.com records 25 monthly visits with -99% month-over-month growth and Free pricing. ZeroGPT records 32,864,541 monthly visits with +19.7% growth and Freemium, Paid pricing. | Metric | [paperred.com](https://openaitools.app/tool/paperred-com) | [ZeroGPT](https://openaitools.app/tool/zerogpt) | | :--- | :--- | :--- | | Website URL | https://paperred.com | https://www.zerogpt.com | | Categories | AI Plagiarism Checker, AI Paraphraser, AI Writing, AI Content Detector | AI Content Detector, AI Detector, AI Checker, AI Plagiarism Checker | | Pricing Model | Free | Freemium, Paid | | Monthly Visits | 25 | 32,864,541 | | MoM Growth Rate | -99% | +19.7% | | Primary Market | Japan | United States | | Direct Visits | 7 | 8,220,007 | | Review Score | 3.9 | 3.8 | | Saved Count | 0 | 31 | | Supported Platforms | Website | Website | ## paperred.com PaperRed (paperred.com) is a China-focused academic toolkit built around the four stages students actually go through: write, check, reduce, and defend. It brings plagiarism checking, AIGC detection, similarity reduction and AI writing into a single platform, so a paper does not have to move between separate services at each step. The writing side targets the standard campus deliverables — literature reviews, opening proposals, course papers, thesis drafts and journal articles — with support for multiple disciplines and document types. The checking side offers several versions of similarity detection plus AIGC detection, and the site highlights a free daily quota for basic checks while reserving more thorough, final-version checks for paid tiers. The reduction side uses AI rewriting to lower both the similarity rate and the AI-generated content rate, with the stated aim of keeping the original formatting and meaning intact. Beyond the core four steps, PaperRed bundles formatting and typesetting, PPT creation and research tools, and supports computer, mobile mini-program and WeChat access. The platform is operated by Shandong Zhisheng Information Technology Co. and markets itself on accuracy, a large comparison corpus and data security for uploaded documents. **Pricing & Plans:** Free with paid tiers. Basic plagiarism and AIGC checks are advertised as free with a limited daily quota, and the platform also offers professional and flagship versions of checking as well as premium writing and reduction services. - **Plagiarism and similarity checking:** Run similarity checks against a large comparison corpus, with several versions of checking available for different stages of a paper. - **AIGC detection:** Detect how much of a document reads as AI-generated, so you can address the AIGC rate before submission. - **AI rewriting and reduction:** Rewrite content to bring down both the similarity rate and the AIGC rate while aiming to preserve original formatting and meaning. - **AI academic writing:** Generate drafts of literature reviews, proposals, journal articles and course papers with references and structure. - **Formatting and research tools:** Formatting, PPT creation and research utilities support the wider thesis workflow from draft to defence. **Strengths:** Combines checking, AIGC detection, reduction and writing in one place; Advertises free daily plagiarism and AIGC checks; Rewriting targets both similarity and AI-detection rates together; Multi-terminal access via computer, mobile mini-program and WeChat **Limitations:** The interface and content are primarily aimed at Chinese academic workflows; Free checks have practical limits (the site advertises a small daily free quota); Paid tiers are needed for final-version checks and premium features [Profile (Markdown)](https://openaitools.app/tool/paperred-com.md) ## ZeroGPT ZeroGPT is best known as an AI content detector, but the site has expanded into a full writing and verification toolkit. The core AI/GPT detector lets you paste text or upload a file and returns a highlighted analysis showing which sentences look machine-written, with a percentage gauge and an automatically generated PDF report you can use as documentation. Around that core sit several companion detectors and writers. The AI image detector and AI video detector extend checking beyond text; the plagiarism checker scans against billions of sources; and the AI humanizer and paraphraser rewrite text into a more natural style. A grammar checker, summarizer, translator, dictionary, word counter, citation generator, and AI email helper round out day-to-day writing tasks. The company says its multi-stage DeepAnalyse model is trained on internet text, educational datasets, and proprietary synthetic AI datasets, covers over 35 LLM families, and reports 98.4% detection accuracy with a false positive rate under 1%. Access is freemium: the main tools work free in the browser, with MAX and EXPERT subscriptions for heavier use and premium features, and a separate API for organizations that need large-scale integration. ZeroGPT also runs on WhatsApp and Telegram through a bot, letting you chat, detect AI text, summarize, paraphrase, translate, and check grammar without leaving the messaging app. **Pricing & Plans:** Freemium with paid tiers. Core tools such as the AI detector, summarizer, and grammar checker are usable free in the browser, while MAX and EXPERT subscriptions unlock higher limits and premium features, and API access is sold separately for organizations. - **AI and ChatGPT detection:** Paste up to 15,000 characters or upload a file and get a highlighted breakdown of which sentences appear AI-written, plus an overall percentage score and a downloadable PDF report. - **AI image and video detection:** Beyond text, ZeroGPT offers an AI image detector and an AI video detector that performs frame-level analysis to flag generated or manipulated visuals. - **Plagiarism checking and humanizing:** Compare your text against billions of sources through the plagiarism checker, or rewrite and humanize AI text with the paraphraser and AI humanizer while keeping the original meaning. - **Writing and productivity tools:** A bundled writing suite covers summarization, grammar and spelling correction, translation across many languages, a dictionary, word and character counting, citation generation, and an AI email writer. - **API for organizations:** A documented REST API exposes detection, plagiarism, paraphrasing, summarization, grammar, chatbot, and translation endpoints for organizations that need to embed ZeroGPT at scale. **Strengths:** Free browser access to the core AI detector, summarizer, and grammar checker; Sentence-level highlighting with an overall percentage and exportable PDF reports; Extends beyond text to AI image and video detection, plus plagiarism checking; Broad companion toolkit: humanizer, paraphraser, translator, dictionary, citations, email helper **Limitations:** AI detectors can produce false positives, so results should be treated as a signal rather than proof; The strongest features sit behind MAX/EXPERT paid tiers and API access is a separate purchase; Character limits apply to the free detection box; No detection tool can guarantee correctness across every model and language [Profile (Markdown)](https://openaitools.app/tool/zerogpt.md) ## Frequently Asked Questions ### How do paperred.com and ZeroGPT compare in monthly traffic? paperred.com has 25 monthly visits, while ZeroGPT has 32,864,541. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? paperred.com has a month-over-month growth rate of -99%; ZeroGPT has +19.7%. ### How does pricing compare? paperred.com: Free. Free with paid tiers. Basic plagiarism and AIGC checks are advertised as free with a limited daily quota, and the platform also offers professional and flagship versions of checking as well as premium writing and reduction services. ZeroGPT: Freemium, Paid. Freemium with paid tiers. Core tools such as the AI detector, summarizer, and grammar checker are usable free in the browser, while MAX and EXPERT subscriptions unlock higher limits and premium features, and API access is sold separately for organizations. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [Grammarly](https://openaitools.app/tool/grammarly) | 58,867,412 | -1.5% | Freemium | Cross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection. | [.md](https://openaitools.app/tool/grammarly.md) | | 2 | [QuillBot Paraphraser](https://openaitools.app/tool/quillbot-paraphraser) | 36,630,337 | +2.3% | Freemium | Popular paraphrasing assistant focused on rewriting and grammar correction, but lacks dedicated AI detection scanners. | [.md](https://openaitools.app/tool/quillbot-paraphraser.md) | | 3 | [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | +32.5% | Freemium, Paid | Industry-standard AI content detection trusted by educators, offering robust sentence-level analysis similar to ZeroGPT. | [.md](https://openaitools.app/tool/gptzero-me.md) | | 4 | [Scribbr](https://openaitools.app/tool/scribbr) | 7,530,803 | +14.6% | Freemium | Academic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers. | [.md](https://openaitools.app/tool/scribbr.md) | | 5 | [Undetectable AI](https://openaitools.app/tool/undetectable-ai) | 3,113,403 | +17.5% | Freemium | Combines reliable AI detection with advanced text humanization tools to rewrite machine-generated content naturally. | [.md](https://openaitools.app/tool/undetectable-ai.md) | | 6 | [Copyleaks](https://openaitools.app/tool/copyleaks) | 2,402,494 | -14.1% | Paid, Contact for Pricing | Enterprise-grade content verification suite detecting AI text, images, and source code across multiple languages. | [.md](https://openaitools.app/tool/copyleaks.md) | | 7 | [Originality.ai](https://openaitools.app/tool/originality) | 2,049,639 | +2.8% | Paid | Comprehensive content integrity platform specialized in accurate AI detection and plagiarism checking for digital publishers. | [.md](https://openaitools.app/tool/originality.md) | | 8 | [Isgen AI Detector](https://openaitools.app/tool/isgen-ai) | 901,917 | +5.8% | Freemium | Multilingual AI content detection platform providing detailed sentence-level scoring and writing integrity utilities. | [.md](https://openaitools.app/tool/isgen-ai.md) | | 9 | [GPTinf](https://openaitools.app/tool/gptinf-com) | 674,246 | +25.8% | Freemium, Free Trial, Paid | Online writing suite blending AI humanization tools with plagiarism and readability checking features. | [.md](https://openaitools.app/tool/gptinf-com.md) | | 10 | [Winston AI](https://openaitools.app/tool/winston-ai) | 604,454 | +5.4% | Freemium, Free Trial | High-accuracy AI content detector that scans both text and uploaded images for machine generation. | [.md](https://openaitools.app/tool/winston-ai.md) | --- Source: https://openaitools.app/compare/paperred-com-vs-zerogpt More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)