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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.
Bundles many AI models for chat, writing, image, audio and video into one affordable credit-based app.
AI knowledge base that saves, summarizes and connects articles, videos, podcasts and PDFs into a graph you can chat with.
A fast, keyboard-driven Mac/Windows launcher with an extension store and built-in AI commands for power users who live in shortcuts.
AI PDF redaction tool that auto-detects and permanently removes PII, with a free tier and pay-per-page pricing.
No public pricing
Free trial available
- ✦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
- ✦AI chat across multiple models
- ✦AI writing and copy tools
- ✦Image generation, upscaling and editing
- ✦Document analysis and chat
- ✦Audio and video generation
- ✦Shared, rollover credit system
- ✦One-click saving of articles, videos, podcasts, PDFs
- ✦AI summaries of saved content
- ✦Automatic tagging and knowledge-graph linking
- ✦Chat with your knowledge using GPT, Claude or Gemini
- ✦Spaced-repetition quizzes
- ✦Browser extension, web and mobile apps; API/MCP access
- ✦Extendable command-bar launcher for macOS and beta Windows support
- ✦Thousands of third-party extensions from a public store
- ✦Built-in AI chat and custom AI command automation
- ✦Clipboard history, window management, and calculator utilities
- ✦Text snippets and quicklinks for repetitive actions
- ✦Hotkeys and aliases for common apps and commands
- ✦Team plan for sharing snippets, quicklinks, and extensions
- ✦AI detection of PII, PHI and financial data
- ✦Permanent, irreversible redaction
- ✦OCR for scanned PDFs
- ✦Batch and bulk file processing
- ✦API access and custom integrations
- ✦Files never stored after processing
- →Understand research papers
- →Study and homework help
- →Review contracts and reports
- →Translate and summarize documents
- →Producing marketing and social content
- →Generating and enhancing images
- →Summarizing and querying documents
- →Brainstorming with multiple AI assistants
- →Building a personal 'second brain'
- →Summarizing long content to save time
- →Chatting with your own saved knowledge
- →Retaining what you read via spaced repetition
- →Launching apps and running quick commands without leaving the keyboard
- →Automating repetitive text and file tasks with snippets and quicklinks
- →Getting AI answers or writing help without switching apps
- →Sharing productivity tooling and extensions across a team
- →Legal discovery and FOIA redaction
- →HIPAA-compliant healthcare records
- →Government public-records redaction
- →Financial document redaction