Open WebUIvsStreamlit

Full side-by-side comparison — features, pricing, platforms, and which one wins in 2026.

Open WebUI

Chat Interfaces

Beautiful self-hosted ChatGPT-like interface for any LLM

Streamlit

Developer Tools

Turn Python scripts into interactive web apps

FeatureOpen WebUIStreamlit
CategoryChat InterfacesDeveloper Tools
PricingFree (open-source)Free (open-source) + Cloud
GitHub Stars
More stars
65k
35k
PlatformsmacOS, Linux, Windows, DockerLinux, macOS, Windows, Web
Key Features
  • Ollama integration
  • Multi-model
  • RAG
  • Web search
  • Voice input/output
  • Plugins
  • User management
  • Data apps
  • Widgets
  • Charts
  • Deployment
  • Community cloud
Pros
  • + Feature-rich ChatGPT alternative
  • + Supports Ollama + OpenAI APIs
  • + Document upload and RAG
  • + Multi-user with auth
  • + Very active development
  • + Zero frontend knowledge needed
  • + Fastest prototyping tool
  • + Great for data apps
  • + Active community
  • + Free cloud hosting
Cons
  • Requires Docker for easy setup
  • Can be slow with large documents
  • Plugin ecosystem still growing
  • Resource intensive
  • Limited UI customization
  • Not ideal for production apps
  • Performance issues with large data
  • Reruns entire script on interaction
Tags
open-sourcechatuiollamaself-hosted
pythondatadashboardopen-source

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