Chatbox brings several AI models into one app for chat and work using user supplied API keys.
ChatPDF
ChatPDF brings ChatGPT-style intelligence and PDF AI technology together for smarter document understanding. Summarize, chat, and analyze.
About ChatPDF
ChatPDF lets users upload documents and ask questions, get summaries, and compare content in a chat interface. It works with PDF, Word, PowerPoint, Markdown, and text files, shows citations linked to the source document, supports folder-based chats across multiple files, and accepts documents and chat in different languages.
Core functions can be tried without an account. Saved history and multi-document chats require a free account, and the free plan allows analysis of 2 documents per day.
Key features
- Ask questions about uploaded PDFs and receive cited answers
- Summarize academic articles, reports, and other documents
- Chat with multiple files together in organized folders
- Side-by-side chat and document view with linked sources
- Translate PDF content into other languages
- Support for PDF, Word, PowerPoint, Markdown, text files
Best for: Students, researchers, and professionals who need to question, summarize, and compare PDFs and other documents.
Good for
- No account needed to start using core chat and summary functions
- Responses include citations linked to the original document content
- Accepts PDFs in any language and can respond in any language
Watch out for
- Free plan is limited to 2 documents per day
- Saved chat history requires creating an account
- Multi-document chats require creating an account and using folders
ChatPDF at a glance
- Website
- chatpdf.com
- Type
- Online tool
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Good for
- Researchers, Students
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
ChatPDF alternatives
Tools and sites you could use instead, ranked by how closely they match.
Merlin offers an AI chat interface for accessing models such as ChatGPT and Gemini to research, write, code, and create images.
Mendable helps developers build AI chat applications by ingesting technical content and deploying answers with a line of code.
ChatHelp.ai offers a business, work, and study assistant, a website chat widget, and curated AI tools and agents.
PyGPT provides an open-source desktop AI assistant for chat, agent building, and retrieval-augmented knowledge access.
URV AI offers chat with language models, character creation, and image generation.
Popular in AI Chatbots & Assistants
Well-known listings from the same topic.
Lumolumo.proton.meMicrosoft Copilotcopilot.microsoft.comLearn Aboutlearning.google.com/experiments/learn-aboutEidoloneidolonai.comFlowHuntflowhunt.ioPine AI19pine.ai
ChatPDF FAQ
What file types does ChatPDF support?
PDF (.pdf), Word (.doc, .docx), PowerPoint (.ppt, .pptx), Markdown (.md), and text files (.txt).
Do I need an account to use ChatPDF?
No. You can start without an account; a free account is needed for saved history and multi-document chats.
Can I chat with multiple files at once?
Yes. Create a folder, add files, and ask questions across them to compare content or find connections.
Is something wrong or out of date?
Tell us and an editor will check it.
Own this website?
Claim this listing
Claim the listing and suggest updates yourself. An editor checks every claim first.