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Popular tool to chat with PDFs and other documents, giving summaries and cited answers, with a free daily tier and no-signup start.
AI homework chat assistant offering instant Q&A, essay writing help, and text paraphrasing for students across subjects.
An AI summarizer that turns YouTube, video, audio, PDFs and webpages into notes, transcripts, translations and mind maps.
Popular free bilingual AI translator for web pages, PDFs, videos and images, wrapping 20+ engines like DeepL and GPT.
Chinese-language RAG AIGC assistant with 1,000+ AI roles for writing, chat, study and coding, sold via credit packs and subscriptions.
No public pricing
No public pricing
No public pricing
No public pricing
- ✦Chat with PDFs, Word, PowerPoint and text files
- ✦Summaries with cited sources
- ✦Multi-file chats via folders
- ✦Any-language upload and chat
- ✦Extra tools: AI writer, detector, flashcards, slides
- ✦No-signup quick start
- ✦Chat interface for asking homework questions across subjects
- ✦Step-by-step help with math and coding problems
- ✦Essay writing assistance from brainstorm to final draft
- ✦Text paraphrasing tool for rewriting content
- ✦Available continuously for late-night study sessions
- ✦YouTube summarization and transcripts
- ✦Video and audio summarization
- ✦PDF and webpage summarization
- ✦Mind map generation
- ✦Translation and knowledge extraction
- ✦Export to MP3, MP4 or structured notes
- ✦Side-by-side bilingual web translation
- ✦Layout-preserving PDF and ePUB translation
- ✦Video subtitle and live-meeting translation
- ✦Image and comic translation
- ✦20+ engines incl. DeepL, GPT, Gemini, DeepSeek
- ✦Browser extensions and iOS/Android apps
- ✦1,000+ AI virtual roles
- ✦Tiered AI intelligence across open models
- ✦Markdown document-style chat with preview
- ✦Cloud conversation storage and sync
- ✦Multi-device, bilingual (Chinese/English) support
- ✦Writing, coding and consulting assistants
- →Understand research papers
- →Study and homework help
- →Review contracts and reports
- →Translate and summarize documents
- →Students needing quick answers to homework questions at any hour
- →Writers wanting help outlining or drafting an essay
- →Learners debugging code or working through math problems
- →Students paraphrasing text for assignments
- →Summarizing YouTube lectures for study
- →Extracting notes from PDFs and articles
- →Turning long content into mind maps
- →Reading foreign-language websites and papers
- →Translating PDFs while keeping formatting
- →Watching videos with bilingual subtitles
- →Translating images and comics
- →Draft and rewrite content
- →Chat with AI characters for fun
- →Get study and homework help
- →Generate and review code