ChatPDF
Free tierChat with any PDF using AI — summarize, ask questions, and extract insights instantly
Free tier available·All audiences·Powered by OpenAI (GPT-4o / GPT-4o-mini dynamic routing)·API available
Key strengths
Purpose-built PDF chat with side-by-side document viewCited sources linked directly to PDF page referencesMulti-file chat across folders of documentsFully multilingual — upload and chat in any languageNo account required to get started
Free tier + paid plans
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- RAG pipeline integration — embed ChatPDF's API into internal tools to enable document Q&A over enterprise PDFs
- Multi-format ingestion — process PDFs, DOCX, PPTX, MD, and TXT files through a single unified API endpoint
- Cross-document reasoning — use folder-based multi-file chats to query relationships and contradictions across large document sets
- Multilingual NLP workflows — leverage automatic language detection and cross-lingual Q&A for global research pipelines
- Citation-grounded summarization — extract structured summaries with source references for downstream annotation or review tasks
- Educational tooling — programmatically generate AI flashcards and presentation slides from document content via the platform's tool suite