Private AI for Documents, Writing and Research

docTR is an open-source Python OCR library for developers building document processing tools and researchers comparing text recognition models. It reads PDFs and images on your own hardware, locating words and recognizing their text. The library uses PyTorch and carries the Apache 2.0 license.

Whishper is a self-hosted speech-to-text app for people who need transcripts or translated subtitles from audio and video. Its browser interface brings transcription, translation and subtitle editing together, with all three running on your own machine. It can work offline, so local media doesn't need to go to a cloud transcription service.

Blinko is a self-hosted AI note app for quickly capturing thoughts and retrieving them later. Notes and data are stored in your own environment, with plain-text storage and Markdown formatting. The project is licensed under GPL-3.0.

xberg, formerly Kreuzberg, is a local document extraction engine for developers building AI search, document processing, and retrieval-augmented generation applications. It reads PDFs, Office files, scanned images, email, and nested archives, extracting text, tables, images, and metadata through one shared engine. It's open source under MIT.

IntelliBar is an AI assistant for Mac that brings local models and cloud services into one desktop app. It's for people who want to write, proofread, or ask questions without switching between separate chat apps. Ollama support lets you run models locally and keep prompts away from remote providers.

Paperless-GPT adds AI text extraction and document organization to an existing paperless-ngx library. It runs in Docker on your own server and suits people who want less manual sorting of scanned paperwork. The project is open source under the MIT license.

MacWhisper is a native macOS transcription app for people working with interviews, lectures, meetings and other recorded audio. It runs speech recognition on your own Mac, so local transcription keeps audio on your device. It also offers cloud transcription through services such as OpenAI, ElevenLabs and Deepgram, which send audio off your machine.

Zerox is an MIT-licensed OCR library for developers preparing documents for AI applications. Its Node.js and Python packages run on your own machine or server, while cloud vision models read the document pages and produce Markdown. Document conversion happens locally, but page images go to the selected model provider, so this workflow needs internet access and provider credentials.

ChatWise is a desktop chat app for connecting different model providers through one interface. It stores data locally; model processing follows the provider you choose. Its official documentation includes Ollama for models running on your own machine, alongside cloud providers connected with your API keys.

Brave Leo is an AI assistant built into the Brave browser, with Bring Your Own Model support for people who want to use their own local or remote models while browsing. It can work with third-party APIs as well as Brave's hosted model choices. The browser runs on macOS, Windows, Linux, Android, and iOS.

EasyOCR is a Python OCR library for developers who want to extract text from images on their own hardware. It reads text in photographs and dense documents, so it can serve both scene-text recognition and document processing. It's open source under Apache 2.0.

VideoLingo is a self-hosted video translation app for creators and educators who need bilingual subtitles or dubbed versions of their videos. It brings transcription, translation and subtitle timing into one browser interface, with dubbing as an optional output. The project is open source under Apache 2.0; a separate hosted service offers subtitle translation and dubbing.

Joplin Jarvis is an AI assistant for people who keep their writing, research, or personal knowledge in Joplin on desktop and mobile. It connects conversations to your existing notes and supports local LLMs through Ollama alongside cloud services such as GPT, Claude, Gemini, and Hugging Face.

Witsy is an AGPL-3.0 desktop AI assistant for macOS, Windows and Linux that connects MCP tools to local and cloud models. It's for people who want document chat, writing help and voice features in one app, with a choice of where their models run.

LangBot is a self-hosted AI agent platform for teams that want bots in the messaging apps their customers, coworkers or communities already use. It connects Slack, Discord, Telegram, WeChat and other chat services to models and AI workflows, with a browser dashboard for managing bots across platforms.

Chat2DB Community is a database client and AI SQL workspace for developers, database administrators and analysts. It runs on Windows, macOS and Linux, with Docker and browser access also available. Its AI assistant connects to a model you configure to generate, explain and optimize SQL. Where AI requests are processed depends on that model connection.

Immersive Translate is an AI translation extension and mobile app that keeps original text alongside its translation. It's aimed at students, researchers and people who read foreign-language material for work. The bilingual page layout lets readers compare passages without replacing the source text.

Enconvo is a native AI assistant and agent for Mac that can use your screen and selected text as context, then work inside your apps. It's for people who want help with writing, research and everyday tasks alongside the app they're using. A sidebar keeps the agent beside the current app, while text selection tools give quick access to editing and translation.

ChatDev is a self-hosted platform for building teams of AI agents through a visual workflow editor. It's for people who want agents to collaborate on research, data analysis or software projects without writing the orchestration code themselves. You define each agent's role and how information passes between them.

Logseq is an AGPL-3.0 knowledge base with an outline editor, linked references and block references. It combines note-taking with task management, PDF annotations and flashcards. Search and queries can gather related information into tables.

LocalWriter brings local LLM writing assistance into LibreOffice Writer for people who want to draft and revise text inside their documents. It runs on macOS, Windows and Linux and connects to a separate model runner, including Ollama and text-generation-webui. With a backend on your own machine, text processing stays local.

Postgres MCP Pro is a self-hosted MCP server that gives AI assistants access to PostgreSQL alongside tools for diagnosing slow queries and testing index recommendations. It's for developers and database maintainers who want their assistant to work with the database's actual schema, query statistics and execution plans. It runs through Docker or Python and is open source under the MIT license.

GOT-OCR2.0 is an OCR model for developers and researchers who want to extract text from images on their own hardware. It handles both plain text and formatted output through a single model, with recognition modes for selected regions and documents spanning multiple pages. The Python codebase builds on Vary.

DeepSeek-OCR is an open-source OCR model for developers building document processing tools and researchers studying how AI reads text through images. It runs on your own hardware with NVIDIA CUDA GPUs. Its distinctive focus is visual text compression: representing document images with compact sets of vision tokens for a language model to read.

PDF-Extract-Kit is a local AI model toolbox for developers and researchers building document processing applications. It extracts text, tables and mathematical formulas from PDFs, with separate models for identifying page elements and recognizing their contents. It's open source under AGPL-3.0, written in Python, and supports CPU or GPU execution on your own hardware.

Text Generator is an MIT-licensed Obsidian plugin for generating ideas, titles, summaries, outlines and paragraphs using your notes as context. It supports local models as well as OpenAI, Anthropic, Google and Hugging Face.

Obsidian Local GPT brings AI writing assistance into Obsidian, with local Ollama models for private, offline use or connections to OpenAI-compatible services. It's for people who want help with their notes while keeping control over where the AI runs. The plugin is open source under the MIT license.

MonkeyOCR is a local AI document parser for developers and researchers working with English and Chinese PDFs or images. It extracts text, formulas and tables while identifying page structure and relationships between blocks. That makes it useful for documents where plain text extraction loses reading order or separates content from its layout.

BoltAI is a native Mac app for people who want local LLMs and cloud AI services in the same workspace. It runs on Intel and Apple Silicon Macs and suits coding, writing, research and document analysis. The interface uses SwiftUI and AppKit.

GPTLocalhost connects Microsoft Word to your choice of local or cloud language models. It keeps the AI interface inside Word rather than requiring a separate chat app. The provider directs teamwork use to its separate LocPilot for Word product.

Nanobrowser is an open-source AI agent that automates web tasks inside Chrome or Edge. It's for people who want to delegate repetitive browsing or research while choosing which models handle the work. The extension runs in your browser and is an alternative to OpenAI Operator, with an Apache 2.0 license.

Langchain-Chatchat is a self-hosted application for asking questions about your own documents and using AI agents. It focuses on Chinese-language use and open models, with a fully offline setup that can keep documents and model processing on your hardware. Its code is open source under Apache 2.0.

AstrBot brings AI assistants into messaging apps such as Telegram, Discord, Slack, QQ and WeCom. It's an open source platform under AGPL-3.0 for people building personal companions, customer support bots or team automation. You can run it on your own computer or server, including through Docker, or use its desktop app for browser-style chat.

Whisper WebUI turns audio into transcripts and subtitles through a browser interface that runs on your own machine or a self-hosted server. It's for people captioning videos, transcribing recordings or translating spoken content who want local speech processing. The project is open source under Apache 2.0 and supports Docker and Pinokio.

Mattermost Agents brings AI assistants into a self-hosted Mattermost workspace, with a choice of local models or cloud providers. It's for teams that want help with long discussions and meeting recordings while controlling where their collaboration data goes. The plugin is open source under Apache 2.0.

LayoutParser is an open-source Python library for developers and researchers who need to detect page structure in document images and turn OCR output into structured data. Its pretrained deep learning models share a common interface, so you can work with models trained on different document datasets without rewriting the surrounding pipeline.