# ChatPDF vs TopPDF ChatPDF records 1,044,477 monthly visits with -3.7% month-over-month growth and Freemium pricing. TopPDF records 643 monthly visits with -90.6% growth and Freemium pricing. | Metric | [ChatPDF](https://openaitools.app/tool/chatpdf) | [TopPDF](https://openaitools.app/tool/toppdf) | | :--- | :--- | :--- | | Website URL | https://www.chatpdf.com | https://www.toppdf.co | | Categories | AI PDF, AI Chatbot, AI PDF Summarizer, AI Summarizer | AI PDF, AI PDF Editor, AI Translate, AI Grammar Checker | | Pricing Model | Freemium | Freemium | | Monthly Visits | 1,044,477 | 643 | | MoM Growth Rate | -3.7% | -90.6% | | Primary Market | United States | Global | | Direct Visits | 457,792 | 230 | | Review Score | 4.2 | 3.9 | | Saved Count | 279 | 1 | | 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) ## TopPDF TopPDF is a browser-based toolbox that concentrates the document tasks people do most often into one place. You can edit text and images inside a PDF, translate a document while trying to keep its layout, compress files for easier sharing, merge several PDFs into one, or split a large file into smaller pieces. A converter handles two-way movement between PDF and Word, Excel, PowerPoint and JPG, with EPUB to PDF on the import side as well. Beyond conversion, the platform adds light AI writing help: a grammar checker that detects grammatical and spelling issues across multiple languages, and a paraphrasing tool for rewriting passages quickly. OCR support means scanned or image-based documents can be turned into searchable, editable files, which is often the deciding factor for anyone working with older or printed material. TopPDF says it is used by more than 8 million people and has processed over 150 million PDFs, and the interface is offered in a wide range of languages. Access is freemium: the core utilities can be tried without an account, while a subscription unlocks larger files and more advanced editing. Because pricing is presented inside the product rather than on a public page, it is worth checking current plans in the app before committing. **Pricing & Plans:** Freemium. Core PDF tools such as editing, conversion and compression can be used for free with limits, while a paid subscription unlocks larger files, advanced editing and higher usage volumes. Exact plan prices are shown inside the product rather than on a public pricing page, so check the app for current tiers. - **PDF editing and translation:** Modify text and images directly inside a PDF and translate document content into many languages while keeping the original page layout intact. - **Compress, merge and split:** Shrink, merge and split PDFs so large documents are easier to store, share and organise, with compression that aims to preserve visible quality. - **Two-way format conversion:** Convert PDFs to Word, Excel, PowerPoint and JPG, and convert Word, Excel, PowerPoint, JPG and EPUB back into PDF. - **AI grammar checker and paraphraser:** An AI grammar checker that finds grammatical errors and spelling mistakes across multiple languages, plus a paraphrasing tool for fast rewriting. - **OCR for scans:** OCR support turns scanned or image-based documents into editable, searchable formats so printed material can be reused digitally. **Strengths:** Wide all-in-one toolkit covering editing, conversion, compression and translation; Two-way conversion between PDF and Word, Excel, PowerPoint and JPG; Multi-language interface and a PDF translator covering many languages; OCR makes scanned and image-based documents editable **Limitations:** Some advanced features and larger files sit behind a paid subscription; No visible pricing page makes cost comparison harder before signing up; Heavy PDFs with complex layouts may still need manual fixes after conversion; Site language switcher covers many languages but the interface focus is document conversion rather than a wider productivity suite [Profile (Markdown)](https://openaitools.app/tool/toppdf.md) ## Frequently Asked Questions ### How do ChatPDF and TopPDF compare in monthly traffic? ChatPDF has 1,044,477 monthly visits, while TopPDF has 643. 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%; TopPDF has -90.6%. ### 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. TopPDF: Freemium. Freemium. Core PDF tools such as editing, conversion and compression can be used for free with limits, while a paid subscription unlocks larger files, advanced editing and higher usage volumes. Exact plan prices are shown inside the product rather than on a public pricing page, so check the app for current tiers. ## 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 | [Image to Text](https://openaitools.app/tool/image-to-text-converter) | 4,871,767 | +0.8% | Freemium | Free online OCR that turns any image into editable text in seconds | [.md](https://openaitools.app/tool/image-to-text-converter.md) | | 3 | [PDFgear](https://openaitools.app/tool/pdfgear) | 2,845,280 | -3.4% | Free | A free, AI-powered PDF editor for every device | [.md](https://openaitools.app/tool/pdfgear.md) | | 4 | [PDNob PDF Editor](https://openaitools.app/tool/pdnob-pdf-editor) | 2,376,518 | +1.2% | Freemium, Free Trial, Paid | AI-powered PDF editor for Windows, Mac and iOS | [.md](https://openaitools.app/tool/pdnob-pdf-editor.md) | | 5 | [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) | | 6 | [OpenL Translate](https://openaitools.app/tool/openl) | 1,470,643 | +8.8% | Freemium, Subscription | AI translation for text, images, documents and speech in 100+ languages | [.md](https://openaitools.app/tool/openl.md) | | 7 | [UPDF AI](https://openaitools.app/tool/updf-ai) | 1,050,387 | -7.2% | Freemium, Free Trial, Paid | Cross-platform PDF editing with GPT-powered AI for reading, translating, and signing documents | [.md](https://openaitools.app/tool/updf-ai.md) | | 8 | [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) | | 9 | [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) | | 10 | [PDF Translator](https://openaitools.app/tool/pdf-translator) | 99,000 | -5.8% | Freemium | Free AI-powered PDF translation with layout preserved | [.md](https://openaitools.app/tool/pdf-translator.md) | --- Source: https://openaitools.app/compare/chatpdf-vs-toppdf More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)