Alternatives to ChatPDF

Ask questions across all your PDF files and get answers with cited sources.

Turn open-access research papers into audio podcasts and ask them questions by chat.

Compress, convert, edit, e-sign, and chat with PDFs in your browser with Smallpdf.

AI-native knowledge base software that connects your docs to ChatGPT, Claude, and Copilot through an MCP Server.

Obsidian Copilot is an AI knowledge work agent that chats, searches, and automates your Obsidian vault on any LLM.

Snipd is an AI podcast player that turns what you hear into searchable, shareable snips with transcripts and summaries.

All-in-one AI workspace for AI presentations, PDF reading, spreadsheets, and chat in the browser.

Translate RedNote (Xiaohongshu) videos in 100+ languages — summaries, key points, and downloadable SRT/VTT transcripts.

LightPDF is an AI-powered PDF editor and converter that bundles chat, summarization and OCR into one Pro plan.

Multi-model chat that lets you switch between GPT-4, Claude 2, and GPT-3.5 mid-conversation.

Tenorshare AI humanizes AI-written text and checks it with a built-in AI detector before you submit

A visual knowledge base with an AI Tutor that builds structured courses from your own sources.

AI video summarizer that turns a 1-hour YouTube, Bilibili, or podcast video into a 3-minute read.

Glarity is a free browser extension that summarizes YouTube videos, PDFs and webpages and translates any page side by side

Email-based AI reading companion that summarizes articles, YouTube videos, and PDFs — no signup required.

Owll is an AI notetaker that records, transcribes, and summarizes meetings, lectures, and voice notes across every device.

Flot.ai is a desktop AI copilot with a searchable personal memory that works inside any app or browser tab.

AnythingLLM is a private, on-device AI assistant for document chat, meeting summaries, and custom agents.

Chinese-language search engine that returns cited, synthesized answers instead of link lists.

Chat with books and let simulated great minds join the conversation, with every answer cited to the page.

Chat with any PDF and pull structured data from it, via web app, Chrome extension or REST API.

Chat with PDF and run citation-backed literature review, then draft papers with SciSpace's academic AI writer.

AI writing companion with autocomplete, PDF chat, and paraphrasing for solo writers.

Felo is a free multilingual AI search and creation workspace that answers in your language, then turns the answer into a doc, deck, or clip.

Free Chrome extension that summarizes English YouTube videos into ChatGPT bullet points and key insights in one click — no account required.

MyMemo AI is an AI knowledge base that captures links, videos, PDFs and voice recordings, then answers questions from your own saved library with citations.

AI-generated nonfiction book summaries you can listen to or read in minutes.

Speechify: turn any text into speech, write with your voice, and get fast answers across devices.

Free local RAG chatbot for RTX GPUs – private document Q&A on your PC

AI note-taking that turns handwriting, audio, and PDFs into study materials and summaries.