Best Self Hosted Alternatives to Monica

LibreChat is an open-source, self-hostable AI chat application that provides a ChatGPT-style interface while supporting many AI providers and OpenAI-compatible endpoints. It focuses on multi-user deployments, flexible model switching, and extensible agent/tool workflows.

Key Features

• Multi-provider model selection (including OpenAI-compatible APIs) with per-chat switching and presets
• Agents and tool integrations, including MCP support for connecting external tools
• Code Interpreter capabilities for sandboxed code execution and file handling
• Multimodal interactions: chat with files and analyze images (provider-dependent)
• Generative “artifacts” for creating code outputs (such as React/HTML) and Mermaid diagrams in chat
• Conversation and message search, plus import/export of conversations
• Multi-user authentication options (OAuth2, LDAP, and email login) and basic moderation/spend controls

Use Cases

• A unified internal AI chat portal for teams using multiple LLM vendors and endpoints
• Building no-code or low-code AI assistants that can call tools, search, and execute code
• Secure, self-hosted chat workflows for analyzing documents and iterating on code artifacts

Limitations and Considerations

• Some capabilities (multimodal, image generation, web search, specific tools) depend on configured providers and credentials
• Running code execution and tool integrations increases operational and security requirements and should be carefully sandboxed and access-controlled

LibreChat fits organizations and individuals who want a single, customizable chat UI for many models, with advanced features like agents, tool connectivity, and searchable conversation history. It is best suited for deployments that need multi-user access and flexible endpoint configuration.