ChatPDF
74Ask questions about PDFs, documents and videos
3 products our research names as a replacement for Knowbase in Chat with Documents & PDF, each with what it does differently — prices, API and status from our own checks rather than from the vendors’ own pages.
Ask questions about PDFs, documents and videos
Chat with PDFs plus embeddable document-trained chatbots
from $11.99 against $19
Knowbase vs AskYourPDF →Notes app with an agent that files captures, tracks tasks and commitments and nudges you before they slip
from $9 against $19
Knowbase vs Mem →Not named as direct replacements — neighbours from the same part of the catalog: the best-rated first, then a sample of the rest.
Chats with uploaded PDFs to summarize, answer questions, translate, and turn sections into mind maps.
Chat with your PDFs and documents, with reusable per-document agents, OCR and answers tied to the source.
Desktop app that indexes local files so AI agents like Claude or ChatGPT can search them.
Ask questions across a set of documents at once, including scanned ones, and keep them in a reusable knowledge base.
Chat with PDFs, Word files, websites, and YouTube videos, then get sourced answers instead of skimming.
Chat, summarize, and translate PDF, Word, and PowerPoint files inside a browser or mobile app.
Open-source web app for asking questions about an uploaded PDF, built on Together AI and vector search.
Lets you upload a PDF and ask it questions in any language, with a free tier capped at 2 short PDFs a day.
Ask questions across PDFs, audio files, web pages and YouTube videos and get answers with sources
Photograph an official letter and get it explained in your own language — now sold as custom AI builds
Summarizes YouTube videos, webpages, and PDFs, then answers follow-up questions about them.
Chat with large PDF collections and get answers with the source passage cited back
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