Private AI to Chat With PDFs and Documents

DeepTutor is a self-hosted AI tutor for learners who want to study their own materials through a browser or CLI. It supports Docker deployment and uses configured model providers for its AI capabilities. Hosting the app locally is separate from model inference; requests to a remote provider leave the host.

OpenWork is a desktop workspace for knowledge workers who want AI agents to work on their files and connected services. Built on OpenCode, it's a point-and-click alternative to Claude Cowork and Codex.

Docmost is a self-hosted team wiki with collaborative editing, spaces, page history, attachments and access permissions. Teams can run the wiki on their own servers or use managed hosting. Its core is AGPL-3.0 licensed; AI search and chat require a separate commercial license.

Vellium is a desktop AI app for writers and people who want conversations with fictional characters. It combines multi-character roleplay with writing projects and lets you choose the model provider.

Research Agent is a free, MIT-licensed, open source AI agent that combines online research with documents on your machine. It's for people investigating technical topics or comparing papers who want cited reports and a choice of local or cloud models. It runs on macOS, Windows and Linux, with a browser dashboard and a command-line interface for automation.

localGPT is a self-hosted document chat app for people who want to ask questions about files and summarise them on their own hardware. Its local processing keeps document content and chat data on the machine running the app.

Yuxi is a self-hosted AI agent platform for teams that need answers from their documents and agents that can carry out multi-step work. Its browser workspace brings knowledge sources, task progress and generated files into the same conversation.

Nowen Note is a self-hosted note app and knowledge base for individuals and teams who want to keep documents on their own server or NAS. Writing, connected notes and task management share one workspace.

LangBot is an AI bot platform for teams handling customer support, internal questions, or community chats. It brings agents and existing AI workflows into the messaging services people already use.

Synaplan is an open-source AI platform for teams that want assistants to answer questions from company files and handle customer conversations. It brings internal knowledge and customer support into a shared system on infrastructure you control.

Kerlig is a paid AI writing assistant for Mac that helps with emails, Slack replies and Jira tickets in the apps you already use. It combines text editing with document chat and an agent that can read your screen and use your apps.

Vyact is a desktop workspace for people who want a local LLM to help with files, writing and code. It brings conversations and searchable documents together, with optional connections to email services and Chrome.

Stella is a legal workspace for law firms and legal teams that want matter files, contract review and research in one place. Its AI agent answers questions about a matter with citations that open the relevant source passage.

RESTai is a self-hosted AI platform for developers and teams building document assistants, agents and AI services for other applications. Its web interface manages projects with separate models, prompts and tools, plus a chat playground for testing them.

DocsGPT helps teams search company documents and build AI assistants that answer from those materials. It can run inside your network with local models, including an air-gapped deployment where documents and questions stay within that network.

doc.haus is a self-hosted legal AI agent for lawyers and firms reviewing or drafting contracts. It's a fork of OpenCode that edits Word documents through actual tracked changes, so reviewers can accept or reject each edit in Word.

PapersGPT is an AI research assistant inside Zotero for researchers working through a paper library. It helps answer questions across saved research and turn findings into notes with citations back to the papers.

next-wiki is a self-hosted wiki for people and teams who want AI-assisted knowledge management with a record of where information came from. It keeps original sources separate from AI-written material and reviewed pages, so an assistant's synthesis remains traceable to its evidence. It's open source under Apache 2.0 and runs as a browser app on your own Docker host with PostgreSQL.

Hermes Notes is a self-hosted personal knowledge base for people who want their notes and project work in one connected system. It runs on your laptop or a server you control, with a browser interface and PostgreSQL storage. It's open source under the MIT license and built for personal use or a trusted small group, rather than a public service for unrelated users.

Guaardvark is a local AI studio for people who want document chat, task automation and media production on their own hardware. It brings those jobs into one interface and coordinates their use of the GPU.

PyGPT is a desktop AI assistant for people who want to chat with models, work with their documents and delegate tasks from one application. It supports local AI through Ollama alongside cloud providers.

haiku.rag lets you search your own documents and ask questions with answers you can check against the original pages. It's for people building a private document library or giving an AI assistant access to their files.

AIdea for Zotero is an AI assistant for researchers who want to ask questions about papers and translate reading material inside Zotero. Its side panel works in the library view and the PDF or EPUB reader.

Transcribe Offline turns recordings and live speech into text for people who need to review conversations without uploading audio to a cloud service. It pairs transcript editing with audio playback in a desktop app.

Sidekick is a native macOS app for people who want AI answers grounded in their documents and research materials. Its built-in llama.cpp engine runs GGUF models such as Qwen3.5 without a separate model runner.

Libre WebUI is a self-hosted AI workspace for individuals and teams who want chat, document research and AI agent tasks on infrastructure they control. You can use local models or connect a remote provider of your choice.

Revornix is an AI knowledge workspace for people who collect articles, research papers and recordings and want to ask questions across their library. It connects saved material in a personal knowledge graph and uses those relationships to inform its answers.

Nexent is a self-hosted AI agent platform for people and teams who want to build agents by describing tasks in plain language. It generates executable agents without requiring code or a visual workflow editor.

SapienAI is an academic chatbot and research workspace for researchers who want to keep source material, writing and AI conversations together. Research spaces group project documents, notes and drafts so the AI can answer questions using uploaded material.

RAG Web UI is a self-hosted app for asking questions about your own documents. It's a learning project, and its maintainers advise against commercial use and state that it isn't ready for production.

LightRAG is a self-hosted framework for developers building AI assistants that answer questions across documents. It connects related facts across files, including material where relationships matter, such as legal and financial records.

PandaWiki is a self-hosted knowledge base for teams publishing product guides, technical documentation, FAQs, or blogs. It gives readers AI-assisted ways to find answers within those documents.

Transcritório is a desktop app for researchers transcribing interviews and focus groups, with a focus on Brazilian Portuguese. It keeps audio, transcripts and metadata on your computer.

MemFree is an open-source AI search tool that answers questions using both your own knowledge base and the internet. It's for people who want to search saved documents, bookmarks and web content together, with AI summaries instead of reading each result separately. You can self-host it or use the hosted website.