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Convo-UI vs Langfuse
Langfuse focuses on observability for LLM apps, not UI rendering.
Convo-UIAll-in-one Chatbot UI template for Developers .png?width=96)
LangfuseOpen Source Observability & Analytics for LLM Apps 🕵️♂️Which to pick
Pick Convo-UI if you want…
- Multi-chat UI with backend streaming
- A free, open-source tool
- Integrations with OpenAI API, Flask or Langserve (on Convo-UI's list, not Langfuse's)
Pick Langfuse if you want…
- LLM observability & analytics
- Integrations with Python, TypeScript or Go (on Langfuse's list, not Convo-UI's)
Side by side
- What it is
- Convo-UI:Convo-UI is an open-source chatbot UI template that supports multiple chats, auth, theming, markdown tables, custom backends and streaming.
- Langfuse:Langfuse is an open-source platform for tracing, evaluating and monitoring LLM applications and AI agents.
- Best for
- Convo-UI:Multi-chat UI with backend streaming
- Langfuse:LLM observability & analytics
- Who it’s for
- Convo-UI:Frontend developers building chat interfaces with OpenAI or custom models.
- Langfuse:Developers building, debugging and scaling LLM-based apps and agents.
- Pricing
- Convo-UI:Open source
- Langfuse:Freemium
- Plans
- Convo-UI:—
- Langfuse:Hobby Free · Core $29 per month · Pro $199 per month · Enterprise $2499 per month
- Open source
- Convo-UI:Yes, 20 GitHub stars
- Langfuse:Yes, 35,097 GitHub stars
- Works with
- Convo-UI:OpenAI API, Flask, Langserve
- Langfuse:Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift
Convo-UI features
- Multiple Conversations. Stores several chats locally via localStorage and links them to authentication keys.
- OpenAI API Key Auth. Integrates authentication using OpenAI API keys without persisting them on the server.
- Dark/Light Mode. Automatically follows system theme or can be toggled manually.
- Markdown Table Rendering. Parses and displays markdown tables cleanly, matching OpenAI's UI.
- Custom Backend Integration. Provides examples for calling Flask or Langserve backends and selecting them in the UI.
- Streaming Outputs. Supports streaming responses from both foundation and custom backend models.
Langfuse features
- Hierarchical Traces. Capture every LLM call, tool invocation and retrieval step with filters for user, session, cost and latency.
- Prompt Management. Version, fetch, release and cache prompts separately from code with one-click deployments.
- Evaluation Engine. Run LLM-as-judge, heuristic or human-review evaluations on production data or experiments.
- Experiments & Datasets. Define test cases, run experiments and create golden datasets for continuous improvement.
- Dashboards & Alerts. Monitor cost, latency and quality via custom dashboards and automated alerts.
- Human Annotation. Collaborative human-in-the-loop workflows with annotation queues.
- Extensive Integrations. Supports Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift and 100+ agent frameworks and model providers.
- Self-hosted & Cloud Options. Available as hosted SaaS or self-hosted under MIT license.
Convo-UI vs Langfuse FAQ
Is Convo-UI or Langfuse free?+
Convo-UI is free and open source. Langfuse has a free plan (Hobby); paid plans start at $29/month (Core).
Which is cheaper, Convo-UI or Langfuse?+
Convo-UI is free, so it costs less. Langfuse starts at $29/month (Core).
Is Convo-UI or Langfuse open source?+
Yes, both are open source: Convo-UI (RaghaRao314159/Convo-UI on GitHub, MIT license) and Langfuse (langfuse/langfuse on GitHub).
Do Convo-UI and Langfuse integrate with the same tools?+
Their integration lists don't overlap: Convo-UI lists OpenAI API, Flask and Langserve; Langfuse lists Python, TypeScript, Go, Java and 10 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.