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 b2cc81ad8f 🩹 fix: LibreOffice PDF embed renders via pdf.js (Chrome blocks blob: PDFs too)
Manual e2e on PR #12934 round 2: switching from `data:` to `blob:`
URLs (commit d90f26c11) didn't fix the "This page has been blocked
by Chrome" interstitial. Chrome blocks BOTH data: AND blob: PDF
navigations inside sandboxed iframes — the built-in PDF viewer
requires a top-level browsing context. The Sandpack host iframe is
sandboxed, so neither approach works.

Fix: switch from native browser PDF viewer to pdf.js (Mozilla's
pdfjs-dist) loaded from CDN. pdf.js renders to `<canvas>` which
works in any context — no plugin, no privileged viewer, no
top-level requirement. ~1 MB CDN load is acceptable for a path
that's already opt-in via `OFFICE_PREVIEW_LIBREOFFICE=true`.

Implementation:
- Pin pdf.js v3.11.174 (single-file UMD; v4+ uses ES modules which
  complicate the load + SRI flow)
- Worker URL pointed at the same jsdelivr origin; CSP `worker-src
  https://cdn.jsdelivr.net blob:` allows it
- DPR-aware canvas rendering: scale based on `panelWidth /
  page.viewport.width * devicePixelRatio` so retina displays get
  crisp pixels
- Sequential page rendering (Promise chain) so a many-slide PDF
  doesn't spawn N parallel render jobs
- 15 s timeout safety net (was 4 s for the native viewer; pdf.js
  with DPR=2 on a many-page PDF can take longer)

CSP changes:
- Added `script-src https://cdn.jsdelivr.net 'unsafe-inline'` (was
  inline-only)
- Added `worker-src https://cdn.jsdelivr.net blob:`
- Removed `frame-src` entirely (no nested iframes)
- Removed `object-src` (no `<object>`/`<embed>` either)

Same diagnostic surfacing as the other CDN paths: failure reasons
shown via `<details>` disclosure inline + `console.error` to
DevTools.

Tests updated: PDF.js script presence, GlobalWorkerOptions setup,
canvas render path, all the new failure detection paths. Negative
assertions for both `data:application/pdf` and `blob:...application
/pdf` so a future "let's just try the native viewer again" rewrite
can't silently re-introduce the Chrome block.

SRI hashes intentionally omitted (unlike docx-preview / pptx-
preview) — operator opted in by setting the env flag and trusts
the LibreOffice render pipeline. Worth adding once the path is
proven in production.
2026-05-04 21:28:03 -04:00
.devcontainer 🪦 refactor: Remove Legacy Code (#10533) 2025-12-11 16:36:12 -05:00
.do/gitnexus 🌊 feat: Add GitNexus DigitalOcean Pipeline with PR Index Serving (#12612) 2026-04-11 13:04:46 -04:00
.github 🧷 fix: Pin GitNexus Native Dependency (#12937) 2026-05-04 09:58:21 +09:00
.husky 🎨 refactor: Redesign Sidebar with Unified Icon Strip Layout (#12013) 2026-03-22 01:15:20 -04:00
.vscode
api 🩹 fix: CI — preserve legacy download path for empty-text office attachments 2026-05-04 17:40:49 -04:00
client 🩹 fix: CI — preserve legacy download path for empty-text office attachments 2026-05-04 17:40:49 -04:00
config 📦 chore: Update TypeScript Config for TS v7 (#12794) 2026-04-23 12:51:03 -04:00
e2e ✨ v0.8.5 (#12727) 2026-04-22 13:10:19 -07:00
helm ✨ v0.8.5 (#12727) 2026-04-22 13:10:19 -07:00
packages 🩹 fix: LibreOffice PDF embed renders via pdf.js (Chrome blocks blob: PDFs too) 2026-05-04 21:28:03 -04:00
redis-config
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
.env.example 🔍 feat: add Tavily as Search and Scraper Provider (#12581) 2026-05-04 11:29:13 +09:00
.gitattributes 🎛️ feat: DB-Backed Per-Principal Config System (#12354) 2026-03-25 19:39:29 -04:00
.gitignore 🪆 fix: Allow Nested addParams in Config Schema (#12526) 2026-04-02 20:38:46 -04:00
.prettierrc
AGENTS.md 📋 chore: Move project instructions from AGENTS.md to CLAUDE.md 2026-03-31 21:50:38 -04:00
bun.lock ✨ v0.8.5 (#12727) 2026-04-22 13:10:19 -07:00
CLAUDE.md 📋 chore: Move project instructions from AGENTS.md to CLAUDE.md 2026-03-31 21:50:38 -04:00
deploy-compose.yml 🔒 chore: Bump MongoDB from 8.0.17 to 8.0.20 in Docker Compose Files (#12399) 2026-03-25 13:56:43 -04:00
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: Bump MongoDB from 8.0.17 to 8.0.20 in Docker Compose Files (#12399) 2026-03-25 13:56:43 -04:00
Dockerfile ✨ v0.8.5 (#12727) 2026-04-22 13:10:19 -07:00
Dockerfile.multi ✨ v0.8.5 (#12727) 2026-04-22 13:10:19 -07:00
eslint.config.mjs 🛡️ refactor: Self-Healing Tenant Isolation Update Guard (#12506) 2026-04-01 19:07:52 -04:00
librechat.example.yaml 🛂 refactor: Avoid Default Tavily Safe Search (#12939) 2026-05-04 12:01:23 +09:00
LICENSE 🗒️ docs: Update LICENSE.md Year: 2025 -> 2026 (#12554) 2026-04-08 09:12:44 -04:00
package-lock.json 📄 feat: Rich File Artifact Previews for DOCX, CSV, XLSX, PPTX 2026-05-04 10:16:59 -04:00
package.json 🧬 chore: Align LibreChat With Agents LangChain Upgrade (#12922) 2026-05-03 12:46:01 -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 deployment link for Railway in README and README.zh.md (#12449) 2026-03-28 20:10:36 -04:00
README.zh.md 📝 docs: update deployment link for Railway in README and README.zh.md (#12449) 2026-03-28 20:10:36 -04:00
turbo.json 🏎️ feat: Smart Reinstall with Turborepo Caching for Better DX (#11785) 2026-02-13 14:25:26 -05:00

LibreChat

English · 中文

Deploy on Railway Deploy on Zeabur Deploy on Sealos

Translation Progress

✨ 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

Star History Chart

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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