# ChatPDF vs Particle ChatPDF records 1,044,477 monthly visits with -3.7% month-over-month growth and Freemium pricing. Particle records 15,561 monthly visits with -11.9% growth and Free pricing. | Metric | [ChatPDF](https://openaitools.app/tool/chatpdf) | [Particle](https://openaitools.app/tool/particle) | | :--- | :--- | :--- | | Website URL | https://www.chatpdf.com | https://particle.news | | Categories | AI PDF, AI Chatbot, AI PDF Summarizer, AI Summarizer | AI News, AI Chatbot | | Pricing Model | Freemium | Free | | Monthly Visits | 1,044,477 | 15,561 | | MoM Growth Rate | -3.7% | -11.9% | | Primary Market | United States | United States | | Direct Visits | 457,792 | 11,888 | | Review Score | 4.2 | 4.1 | | Saved Count | 279 | 0 | | Supported Platforms | Website | Website | ## ChatPDF ChatPDF started as a simple "chat with your PDF" utility and has grown into a full research and study workspace. You can drop in a PDF, Word document, PowerPoint deck, Markdown or text file, paste a link, or point it at a YouTube video, then ask questions in natural language. Answers are grounded in your sources and come with clickable citations so you can verify anything straight from the original page. Beyond one-off Q&A, the platform supports folders and multi-file chats, so you can query a whole reading list at once and compare findings across documents. A side-by-side layout keeps the conversation and the document open together, while translation lets you read material in another language or ask questions in a language different from the source. The team has expanded the suite with an AI writer, AI detector, flashcards, slide generation, and a dedicated research mode. Access is browser-based and device-agnostic, with desktop and mobile apps available. The free tier covers a limited number of documents per day with no sign-up required for the core experience, while the paid Plus plan removes limits and unlocks advanced features. Enterprise-grade handling (SSL in transit, encrypted storage, SOC 2 Type II storage provider) is advertised, and users can delete their documents at any time. **Pricing & Plans:** Freemium. A free tier lets you analyze a limited number of documents per day, and the core chat experience works without creating an account. ChatPDF Plus is a paid subscription that adds unlimited document analysis and advanced features — check the site for current plan details and regional pricing. - **Cited answers:** Every response is anchored to your source document with clickable citations that scroll to the exact passage, so verification takes seconds instead of page-by-page searching. - **Multi-file chat and folders:** Organize documents into folders and query many files in a single conversation to compare arguments, cross-reference findings, or study a whole syllabus at once. - **Summarization and translation:** Condense long papers, reports, and contracts into key takeaways, and translate or query documents in any language — including mixing a source language with a different question language. - **Study and writing tools:** Generate flashcards and slide decks from your material, and use the built-in AI writer and AI detector for drafting and checking academic text. - **Side-by-side reading view:** Keep the chat panel and the PDF open together so answers stay linked to the original content while you read along. **Strengths:** Answers include clickable citations tied to the original page, which makes fact-checking straightforward; Works with PDFs, Word, PowerPoint, Markdown, text, YouTube links, and web pages in one place; No account needed to try the core chat experience, and the free tier covers light daily use; Multilingual: upload in one language and ask questions in another **Limitations:** The free plan caps how many documents you can analyze each day; Advanced features such as unlimited analysis and the full study toolkit sit behind the paid Plus subscription; Very large documents or heavy multi-file sessions can be slower and may hit size limits [Profile (Markdown)](https://openaitools.app/tool/chatpdf.md) ## Particle Particle is a news reading experience for people who want the gist of a story without opening a dozen tabs. For each event it aggregates reporting from a wide range of publishers and produces a short AI-written summary, then lets you drill into the individual articles that formed it. The result is a feed that reads more like a briefing than a link dump. The product covers a broad set of verticals — technology, politics, sports, entertainment, science, crime, economics, international relations and gaming — and lets you follow specific topics, teams, companies and people so the home feed reflects your interests. A newer feature called Radar lets you search what a large library of podcasts (advertised as 165,000+ shows) has said about any topic, company or person, treating spoken-word commentary as a searchable news source alongside written reporting. Particle is funded and operated by Mina Labs, Inc., with a founding team that includes former Twitter product and engineering staff. It is free to use and supported by advertising, analytics and cookie-based personalization, with the option to decline non-essential cookies. **Pricing & Plans:** Free to use. Particle is supported by advertising and personalized recommendations rather than a paid subscription, and visitors can decline non-essential tracking cookies. - **AI multi-source story summaries:** Each story is condensed into a short summary built from many publishers' reporting, so you can grasp the essentials quickly and still see the underlying articles. - **Personalized topic feed:** Follow channels such as technology, politics, sports, science, economics and gaming, plus narrower entities and events, to shape what appears in your feed. - **Radar podcast search:** Query a large index of podcasts to see what shows are saying about a given topic, company or person, alongside the written coverage. - **Article-count context:** Stories display how many articles back each summary, giving a rough signal of how widely an event is being covered. - **Cross-platform access:** Read through the web app and mobile apps, with newsletter delivery available for those who prefer email. **Strengths:** Summaries draw on many sources rather than a single outlet; Broad topic coverage spanning hard news, tech, sports and entertainment; Podcast search adds a source type most news apps ignore; Free to use with an option to decline non-essential cookies **Limitations:** AI summaries are a starting point and can miss nuance in complex stories; Ad-supported model means tracking cookies and personalized advertising; Depth ultimately depends on opening the original articles [Profile (Markdown)](https://openaitools.app/tool/particle.md) ## Frequently Asked Questions ### How do ChatPDF and Particle compare in monthly traffic? ChatPDF has 1,044,477 monthly visits, while Particle has 15,561. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? ChatPDF has a month-over-month growth rate of -3.7%; Particle has -11.9%. ### How does pricing compare? ChatPDF: Freemium. Freemium. A free tier lets you analyze a limited number of documents per day, and the core chat experience works without creating an account. ChatPDF Plus is a paid subscription that adds unlimited document analysis and advanced features — check the site for current plan details and regional pricing. Particle: Free. Free to use. Particle is supported by advertising and personalized recommendations rather than a paid subscription, and visitors can decline non-essential tracking cookies. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | [.md](https://openaitools.app/tool/claude-2.md) | | 2 | [PDFgear](https://openaitools.app/tool/pdfgear) | 2,845,280 | -3.4% | Free | Completely free PDF reading and editing tool with AI assistant, though basic compared to dedicated platforms. | [.md](https://openaitools.app/tool/pdfgear.md) | | 3 | [Chatbot App](https://openaitools.app/tool/chatbot-app) | 2,170,883 | -9.7% | Freemium | Chat with 30+ leading AI models in one clean, fast workspace | [.md](https://openaitools.app/tool/chatbot-app.md) | | 4 | [LightPDF](https://openaitools.app/tool/lightpdf-com) | 1,742,568 | -15.3% | Freemium | Free AI-powered PDF editor, converter and reader for every device | [.md](https://openaitools.app/tool/lightpdf-com.md) | | 5 | [UPDF AI](https://openaitools.app/tool/updf-ai) | 1,050,387 | -7.2% | Freemium, Free Trial, Paid | Combines full desktop PDF editing software with AI chat, but requires software installation for full features. | [.md](https://openaitools.app/tool/updf-ai.md) | | 6 | [PDF.ai](https://openaitools.app/tool/pdf-ai) | 387,819 | -5.5% | Freemium, Free Trial | Includes robust developer APIs for custom document workflows, but free tier limits document page counts. | [.md](https://openaitools.app/tool/pdf-ai.md) | | 7 | [AskYourPDF](https://openaitools.app/tool/askyourpdf) | 127,733 | +14.1% | Freemium | Strong multi-format document chat and form filling capabilities, but interface can feel slightly more cluttered. | [.md](https://openaitools.app/tool/askyourpdf.md) | | 8 | [Snipd](https://openaitools.app/tool/snipd) | 111,446 | +13.8% | Freemium, Free Trial | Turn podcast listening into lasting knowledge | [.md](https://openaitools.app/tool/snipd.md) | | 9 | [ChatTube](https://openaitools.app/tool/chattube) | 101,061 | -4.1% | Freemium, Free Trial | Chat with any YouTube video and get instant answers from its content | [.md](https://openaitools.app/tool/chattube.md) | | 10 | [Elephas](https://openaitools.app/tool/elephas) | 76,647 | -14.7% | Freemium | Private AI that answers from your own documents, on Mac and Windows | [.md](https://openaitools.app/tool/elephas.md) | --- Source: https://openaitools.app/compare/chatpdf-vs-particle More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)