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So is Open WebUI
Uma interface amigável para chat com IA
★ 125.2K LLM AI RAG Chatbot License: MITUma interface web auto-hospedada extensível, rica em recursos e amigável, projetada para operar totalmente offline. Suporta vários executores de LLM, incluindo Ollama e APIs compatíveis com OpenAI.

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So is LobeChat
Framework de chat com IA de design moderno e código aberto
★ 72.7K LLM AI RAG Chatbot License: Apache-2.0 (with a twist)Uma interface/framework de código aberto com design moderno para ChatGPT/LLMs que suporta síntese de voz, multi-modalidade e sistema de plugins extensível (chamada de função).
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So is AnythingLLM
O aplicativo de IA completo que você estava procurando
★ 55.1K LLM AI RAG Chatbot License: MITTransforme qualquer documento, recurso ou conteúdo em contexto que qualquer LLM possa usar como referência durante conversas.
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So is LiteLLM
Servidor Proxy para chamar 100+ LLMs no formato OpenAI
★ 37.2K AI LLM License: MITChame todas as APIs de LLM usando o formato OpenAI [Bedrock, Huggingface, VertexAI, TogetherAI, Azure, OpenAI, Groq etc.]
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So is Khoj
Your AI second brain
★ 32.6K LLM AI RAG Chatbot License: AGPL-3.0Khoj is a personal AI app to extend your capabilities. It smoothly scales up from an on-device personal AI to a cloud-scale enterprise AI.

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So is Perplexica
Motor de busca com inteligência artificial
★ 29.1K LLM AI Chatbot License: MITPerplexica é uma ferramenta de busca de código aberto alimentada por IA ou um mecanismo de busca com IA que mergulha profundamente na internet para encontrar respostas. Inspirado no Perplexity AI, é uma opção de código aberto que não apenas pesquisa na web, mas entende suas perguntas. Usa algoritmos avançados de aprendizado de máquina como busca por similaridade e embeddings para refinar resultados e fornece respostas claras com fontes citadas.

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So is 𝐃𝐄𝐕𝐒
Delegate complex tasks to a swarm of AI agents
★ 5 LLM AI RAG Chatbot License: MIT𝐃𝐄𝐕𝐒 is an open-source, browser-native platform that enables users to delegate complex tasks to a swarm of AI agents.

Features
Artificial Intelligence
- 🤖 LLM provider independence: BYOK support for OpenAI, Anthropic, Google Gemini, Mistral, OpenRouter, Mistral AI, Hugging Face, Ollama, LM Studio and more.
- 🧠 Local AI models: Run HuggingFace open models directly in your browser.
- 💰 Traces & Cost tracking: LLM observability with real-time cost tracking and performance metrics.
Swarm Intelligence
- 🤖 AI Studio: Pre-built agents, custom agent builder.
- 📝 Methodologies: 8D, A3, Agile, AOSTC, DMAIC, PDCA, Scrum, YOLO, and your own.
- 🧠 Agent Memory: Agents learn and remember information from conversations with human review.
- 🔧 Tools: Equip agents with capabilities like Wikipedia search, arXiv search, calculator or code tools.
- 🎯 Intelligent orchestration: Automated multi-agent task coordination with validation.
- 🎭 Hyper meta-prompting: Multi-layered prompt generation for dynamic task handling.
- 👥 Dynamic team formation: Mimicking human organizational structures.
Integrations
- 🔗 Connectors: Integrations with Google Drive, Gmail, Calendar, Dropbox, Notion, Slack, Figma and more.
- 🏪 Marketplace: Extensible platform with apps, agents, connectors, and tools.
- 🎤 Meeting Bot: AI agents join Google Meet as real participants.
Privacy
- 🌐 Browser-native: The browser is the OS. Runs entirely in your browser, no server dependencies.
- 🛡️ Privacy-first: All data stays on your device, no tracking, no cookies.
- 🥷 Offline capable: Works without Internet connection after initial load.
- 💾 Local Backup: Preserve your data with bidirectional sync to a local folder on your host, with human-readable Markdown files.
User Experience
- 📱 Mobile-first design: Optimized for touch and small screens.
- 🌐 Multi-language support: Accessibility for global users.
- 🔍 Global Search: Unified search across agents, conversations, tasks, and files.
- 💄 Customizable: Tailor the platform to your specific needs.
Collaboration
- 🌐 Universal access: Web-based platform accessible from anywhere: https://devs.new
- 🔄 P2P Sync: Cross-device synchronization with CRDT-based conflict resolution.
- 🤝 Team collaboration: Peer-to-peer networking and sharing.
- 📱 QR Code support: Easily share and access your platform configuration.
Sure, Perplexity is awesome.
But have you considered these open source alternatives?
They are free, self-hostable and community-driven.
Check by yourself: Open WebUI , LobeChat , AnythingLLM , LiteLLM , Khoj , Perplexica , 𝐃𝐄𝐕𝐒 .