PDFAITools
Dify
Open-source LLM app development platform. Build AI workflows, chatbots, and agents with a visual editor.
What is Dify?
Open-Source LLM Application Platform
Dify is an open-source platform for building, deploying, and managing LLM-powered applications. It combines a visual workflow editor, a built-in RAG pipeline, agent capabilities, and model management into a single platform — enabling both technical and non-technical users to build sophisticated AI applications without writing extensive code.
What Makes Dify Different
Unlike pure code frameworks like LangChain, Dify provides a complete visual environment. You can drag and drop components to build workflows, connect to dozens of LLM providers, manage prompts, monitor conversations, and deploy applications — all from a web interface. The self-hosted option means your data never leaves your servers.
- Visual workflow builder for complex LLM pipelines
- Built-in knowledge base management for RAG applications
- Support for 20+ LLM providers including OpenAI, Anthropic, and self-hosted models
- Deploy as chat widgets, APIs, or standalone web apps
Key Features
Design complex AI pipelines with a drag-and-drop editor — no coding required for most use cases.
Upload documents and build retrieval-augmented generation pipelines with automatic chunking and indexing.
Configure multi-step agents that can call tools, search the web, and execute code to complete complex tasks.
Connect to OpenAI, Anthropic, Google, Hugging Face, Ollama, or any custom OpenAI-compatible endpoint.
Deploy on your own infrastructure with Docker for complete data privacy and control.
Who Uses Dify?
Build internal AI assistants that answer questions from company documents, policies, and knowledge bases.
Create automated workflows that process documents, extract data, and generate outputs without manual intervention.
Non-technical teams can prototype and test AI applications in hours rather than days.
Organizations with strict data requirements self-host Dify to maintain full control over their AI infrastructure.
Pros & Cons
✅ Pros
- Fully open-source with active community development
- Visual editor makes AI development accessible to non-coders
- Self-hosting option ensures complete data privacy
- Strong RAG capabilities built in with no extra configuration
- Supports a very wide range of LLM providers
❌ Cons
- Self-hosting requires Docker knowledge and server maintenance
- Cloud version has usage limits on the free plan
- Visual editor can become unwieldy for very complex workflows
- Fewer third-party integrations than LangChain's ecosystem
Dify Pricing
Community (Self-hosted)
- Unlimited usage
- All features
- Self-hosted on your servers
- Community support
Sandbox (Cloud)
- 200 messages/day
- 5 apps
- Basic features
Professional (Cloud)
- Unlimited messages
- 50 apps
- Priority support
- Advanced features
Dify earns a 4.3/5 rating from our editorial team. It's completely free to use with no hidden costs, making it one of the most accessible tools in the Productivity space. Standout strengths include fully open-source with active community development and visual editor makes ai development accessible to non-coders.
Get Started with Dify →