Free open source alternative app list about topic "Knowledge Base" :

Khoj

Key features Search across personal notes, documents, and the web from a single chat interface Automates tasks and acts as a personal research assistant Self-hosted design that keeps your data on your own infrastructure Functions as an AI "second brain" for organizing and retrieving knowledge Open-source codebase licensed under AGPL-3.0 Platforms: Windows, macOS, Linux Links Official website Source code Pricing: Freemium. A free, self-hostable open-source release under AGPL-3.0 is available, and a hosted cloud version with usage limits is also offered.

FreemiumWindowsmacOSLinux

FastGPT

Key features Open-source platform for building AI-powered knowledge bases and question-answering systems Uses Retrieval-Augmented Generation (RAG) to combine large language models with custom data sources Supports knowledge ingestion, indexing, and natural-language querying Vector search capabilities for retrieving relevant context from documents Chatbot workflow tools for creating conversational AI agents Flexible integration with various LLM providers Platforms: Linux, macOS, Windows Links Official Website Source Code Pricing: Free — self-hosted, free and open-source under the MIT license.

FreeWindowsmacOSLinux

5ire

Key features Cross-platform desktop AI assistant compatible with local and cloud-based large language models Built-in knowledge base support for grounded, context-aware responses Designed for offline, private AI usage on personal devices Available as a free open-source application under the MIT license Platforms: Windows, macOS, Linux Links Official website Source code Pricing: Free open-source desktop app released under the MIT license.

FreeWindowsmacOSLinux

Apache Answer

A Q&A platform software for teams at any scale. Whether it’s a community forum, help center, or knowledge management platform, you can always count on Answer.

FreeWindowsmacOSLinuxAndroidiOS

Editor's Picks for Free Open-Source Software: