Enhanced ChatGPT Clone: Features Agents, MCP, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message search, Code Interpreter, langchain, DALL-E-3, OpenAPI Actions, Functions, Secure Multi-User Auth, Presets, open-source for self-hosting. Active. https://librechat.ai/
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Danny Avila f7ab5e645a
🫷 fix: Validate User-Provided Base URL in Endpoint Init (#12248)
* 🛡️ fix: Block SSRF via user-provided baseURL in endpoint initialization

User-provided baseURL values (when endpoint is configured with
`user_provided`) were passed through to the OpenAI SDK without
validation. Combined with `directEndpoint`, this allowed arbitrary
server-side requests to internal/metadata URLs.

Adds `validateEndpointURL` that checks against known SSRF targets
and DNS-resolves hostnames to block private IPs. Applied in both
custom and OpenAI endpoint initialization paths.

* 🧪 test: Add validateEndpointURL SSRF tests

Covers unparseable URLs, localhost, private IPs, link-local/metadata,
internal Docker/K8s hostnames, DNS resolution to private IPs, and
legitimate public URLs.

* 🛡️ fix: Add protocol enforcement and import order fix

- Reject non-HTTP/HTTPS schemes (ftp://, file://, data:, etc.) in
  validateEndpointURL before SSRF hostname checks
- Document DNS rebinding limitation and fail-open semantics in JSDoc
- Fix import order in custom/initialize.ts per project conventions

* 🧪 test: Expand SSRF validation coverage and add initializer integration tests

Unit tests for validateEndpointURL:
- Non-HTTP/HTTPS schemes (ftp, file, data)
- IPv6 loopback, link-local, and unique-local addresses
- .local and .internal TLD hostnames
- DNS fail-open path (lookup failure allows request)

Integration tests for initializeCustom and initializeOpenAI:
- Guard fires when userProvidesURL is true
- Guard skipped when URL is system-defined or falsy
- SSRF rejection propagates and prevents getOpenAIConfig call

* 🐛 fix: Correct broken env restore in OpenAI initialize spec

process.env was captured by reference, not by value, making the
restore closure a no-op. Snapshot individual env keys before mutation
so they can be properly restored after each test.

* 🛡️ fix: Throw structured ErrorTypes for SSRF base URL validation

Replace plain-string Error throws in validateEndpointURL with
JSON-structured errors using type 'invalid_base_url' (matching new
ErrorTypes.INVALID_BASE_URL enum value). This ensures the client-side
Error component can look up a localized message instead of falling
through to the raw-text default.

Changes across workspaces:
- data-provider: add INVALID_BASE_URL to ErrorTypes enum
- packages/api: throwInvalidBaseURL helper emits structured JSON
- client: add errorMessages entry and localization key
- tests: add structured JSON format assertion

* 🧹 refactor: Use ErrorTypes enum key in Error.tsx for consistency

Replace bare string literal 'invalid_base_url' with computed property
[ErrorTypes.INVALID_BASE_URL] to match every other entry in the
errorMessages map.
2026-03-15 18:41:59 -04:00
.devcontainer 🪦 refactor: Remove Legacy Code (#10533) 2025-12-11 16:36:12 -05:00
.github refactor: Parallelize CI Workflows with Isolated Caching and Fan-Out Test Jobs (#12088) 2026-03-05 13:56:07 -05:00
.husky refactor: Latest Message Tracking with Robust Text Key Generation (#10059) 2025-10-10 04:22:16 -04:00
.vscode 🔐 feat: Granular Role-based Permissions + Entra ID Group Discovery (#7804) 2025-08-13 16:24:17 -04:00
api 🪪 fix: Enforce VIEW ACL on Agent Edge References at Write and Runtime (#12246) 2026-03-15 18:08:57 -04:00
client 🫷 fix: Validate User-Provided Base URL in Endpoint Init (#12248) 2026-03-15 18:41:59 -04:00
config 🏷️ chore: Remove Docker Images by Named Tag in deployed-update.js (#12138) 2026-03-08 21:48:22 -04:00
e2e v0.8.3 (#12161) 2026-03-09 15:19:57 -04:00
helm v0.8.3 (#12161) 2026-03-09 15:19:57 -04:00
packages 🫷 fix: Validate User-Provided Base URL in Endpoint Init (#12248) 2026-03-15 18:41:59 -04:00
redis-config 🔄 refactor: Migrate Cache Logic to TypeScript (#9771) 2025-10-02 09:33:58 -04:00
src/tests 🆔 feat: Add OpenID Connect Federated Provider Token Support (#9931) 2025-11-21 09:51:11 -05:00
utils 🐳 chore: Update image registry references in Docker/Helm configurations (#12026) 2026-03-02 22:14:50 -05:00
.dockerignore 🐳 : Further Docker build Cleanup & Docs Update (#1502) 2024-01-06 11:59:08 -05:00
.env.example 🛂 fix: MCP OAuth Race Conditions, CSRF Fallback, and Token Expiry Handling (#12171) 2026-03-10 21:15:01 -04:00
.gitignore 🏎️ feat: Smart Reinstall with Turborepo Caching for Better DX (#11785) 2026-02-13 14:25:26 -05:00
.prettierrc 🧹 chore: Migrate to Flat ESLint Config & Update Prettier Settings (#5737) 2025-02-09 12:15:20 -05:00
AGENTS.md 🧪 chore: MCP Reconnect Storm Follow-Up Fixes and Integration Tests (#12172) 2026-03-10 17:44:13 -04:00
bun.lock v0.8.3 (#12161) 2026-03-09 15:19:57 -04:00
CLAUDE.md ✳️ docs: Point CLAUDE.md to AGENTS.md (#11886) 2026-02-20 16:23:33 -05:00
deploy-compose.yml 🐳 chore: Update image registry references in Docker/Helm configurations (#12026) 2026-03-02 22:14:50 -05:00
docker-compose.override.yml.example 🐳 chore: Update image registry references in Docker/Helm configurations (#12026) 2026-03-02 22:14:50 -05:00
docker-compose.yml 🐳 chore: Update image registry references in Docker/Helm configurations (#12026) 2026-03-02 22:14:50 -05:00
Dockerfile v0.8.3 (#12161) 2026-03-09 15:19:57 -04:00
Dockerfile.multi v0.8.3 (#12161) 2026-03-09 15:19:57 -04:00
eslint.config.mjs 🧩 chore: Extract Agent Client Utilities to /packages/api (#11789) 2026-02-13 23:17:53 -05:00
librechat.example.yaml v0.8.3 (#12161) 2026-03-09 15:19:57 -04:00
LICENSE ⚖️ docs: Update LICENSE.md Year: 2024 -> 2025 (#5915) 2025-02-17 10:39:46 -05:00
package-lock.json 📦 chore: Bump NPM Audit Packages (#12227) 2026-03-14 03:36:03 -04:00
package.json v0.8.3 (#12161) 2026-03-09 15:19:57 -04:00
rag.yml 🐳 chore: Update image registry references in Docker/Helm configurations (#12026) 2026-03-02 22:14:50 -05:00
README.md 🚅 docs: update Railway template link (#11966) 2026-02-26 17:24:02 -05:00
turbo.json 🏎️ feat: Smart Reinstall with Turborepo Caching for Better DX (#11785) 2026-02-13 14:25:26 -05:00

LibreChat

Deploy on Railway Deploy on Zeabur Deploy on Sealos

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Features

  • 🖥️ UI & Experience inspired by ChatGPT with enhanced design and features

  • 🤖 AI Model Selection:

    • Anthropic (Claude), AWS Bedrock, OpenAI, Azure OpenAI, Google, Vertex AI, OpenAI Responses API (incl. Azure)
    • Custom Endpoints: Use any OpenAI-compatible API with LibreChat, no proxy required
    • Compatible with Local & Remote AI Providers:
      • Ollama, groq, Cohere, Mistral AI, Apple MLX, koboldcpp, together.ai,
      • OpenRouter, Helicone, Perplexity, ShuttleAI, Deepseek, Qwen, and more
  • 🔧 Code Interpreter API:

    • Secure, Sandboxed Execution in Python, Node.js (JS/TS), Go, C/C++, Java, PHP, Rust, and Fortran
    • Seamless File Handling: Upload, process, and download files directly
    • No Privacy Concerns: Fully isolated and secure execution
  • 🔦 Agents & Tools Integration:

    • LibreChat Agents:
      • No-Code Custom Assistants: Build specialized, AI-driven helpers
      • Agent Marketplace: Discover and deploy community-built agents
      • Collaborative Sharing: Share agents with specific users and groups
      • Flexible & Extensible: Use MCP Servers, tools, file search, code execution, and more
      • Compatible with Custom Endpoints, OpenAI, Azure, Anthropic, AWS Bedrock, Google, Vertex AI, Responses API, and more
      • Model Context Protocol (MCP) Support for Tools
  • 🔍 Web Search:

    • Search the internet and retrieve relevant information to enhance your AI context
    • Combines search providers, content scrapers, and result rerankers for optimal results
    • Customizable Jina Reranking: Configure custom Jina API URLs for reranking services
    • Learn More →
  • 🪄 Generative UI with Code Artifacts:

    • Code Artifacts allow creation of React, HTML, and Mermaid diagrams directly in chat
  • 🎨 Image Generation & Editing

  • 💾 Presets & Context Management:

    • Create, Save, & Share Custom Presets
    • Switch between AI Endpoints and Presets mid-chat
    • Edit, Resubmit, and Continue Messages with Conversation branching
    • Create and share prompts with specific users and groups
    • Fork Messages & Conversations for Advanced Context control
  • 💬 Multimodal & File Interactions:

    • Upload and analyze images with Claude 3, GPT-4.5, GPT-4o, o1, Llama-Vision, and Gemini 📸
    • Chat with Files using Custom Endpoints, OpenAI, Azure, Anthropic, AWS Bedrock, & Google 🗃️
  • 🌎 Multilingual UI:

    • English, 中文 (简体), 中文 (繁體), العربية, Deutsch, Español, Français, Italiano
    • Polski, Português (PT), Português (BR), Русский, 日本語, Svenska, 한국어, Tiếng Việt
    • Türkçe, Nederlands, עברית, Català, Čeština, Dansk, Eesti, فارسی
    • Suomi, Magyar, Հայերեն, Bahasa Indonesia, ქართული, Latviešu, ไทย, ئۇيغۇرچە
  • 🧠 Reasoning UI:

    • Dynamic Reasoning UI for Chain-of-Thought/Reasoning AI models like DeepSeek-R1
  • 🎨 Customizable Interface:

    • Customizable Dropdown & Interface that adapts to both power users and newcomers
  • 🌊 Resumable Streams:

    • Never lose a response: AI responses automatically reconnect and resume if your connection drops
    • Multi-Tab & Multi-Device Sync: Open the same chat in multiple tabs or pick up on another device
    • Production-Ready: Works from single-server setups to horizontally scaled deployments with Redis
  • 🗣️ Speech & Audio:

    • Chat hands-free with Speech-to-Text and Text-to-Speech
    • Automatically send and play Audio
    • Supports OpenAI, Azure OpenAI, and Elevenlabs
  • 📥 Import & Export Conversations:

    • Import Conversations from LibreChat, ChatGPT, Chatbot UI
    • Export conversations as screenshots, markdown, text, json
  • 🔍 Search & Discovery:

    • Search all messages/conversations
  • 👥 Multi-User & Secure Access:

    • Multi-User, Secure Authentication with OAuth2, LDAP, & Email Login Support
    • Built-in Moderation, and Token spend tools
  • ⚙️ Configuration & Deployment:

    • Configure Proxy, Reverse Proxy, Docker, & many Deployment options
    • Use completely local or deploy on the cloud
  • 📖 Open-Source & Community:

    • Completely Open-Source & Built in Public
    • Community-driven development, support, and feedback

For a thorough review of our features, see our docs here 📚

🪶 All-In-One AI Conversations with LibreChat

LibreChat is a self-hosted AI chat platform that unifies all major AI providers in a single, privacy-focused interface.

Beyond chat, LibreChat provides AI Agents, Model Context Protocol (MCP) support, Artifacts, Code Interpreter, custom actions, conversation search, and enterprise-ready multi-user authentication.

Open source, actively developed, and built for anyone who values control over their AI infrastructure.


🌐 Resources

GitHub Repo:

Other:


📝 Changelog

Keep up with the latest updates by visiting the releases page and notes:

⚠️ Please consult the changelog for breaking changes before updating.


Star History

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danny-avila%2FLibreChat | Trendshift ROSS Index - Fastest Growing Open-Source Startups in Q1 2024 | Runa Capital


Contributions

Contributions, suggestions, bug reports and fixes are welcome!

For new features, components, or extensions, please open an issue and discuss before sending a PR.

If you'd like to help translate LibreChat into your language, we'd love your contribution! Improving our translations not only makes LibreChat more accessible to users around the world but also enhances the overall user experience. Please check out our Translation Guide.


💖 This project exists in its current state thanks to all the people who contribute


🎉 Special Thanks

We thank Locize for their translation management tools that support multiple languages in LibreChat.

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