langflow vs promptfoo
A neutral, constraint-first comparison - live GitHub stats and typed relationships, not marketing.
| langflow | promptfoo | |
|---|---|---|
| Tagline | Langflow is a powerful platform for building and deploying AI-powered agents and workflows. | Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. |
| Stars | 151k | 23k |
| Forks | 9.5k | 2.1k |
| Open issues | 977 | 402 |
| Language | Python | TypeScript |
| License | MIT | MIT |
| Last pushed | Jul 7, 2026 | Jul 7, 2026 |
| Categories | Evaluation & Observability, AI Agents, Data & Retrieval | Developer Tools, Evaluation & Observability |
langflow
A tool that offers a visual interface to create custom AI-powered services, integrating support for major language models (LLMs) and vector databases. It also provides multi-agent orchestration capabilities and observability.
Python
promptfoo
A CLI and library to evaluate and red-team LLM applications with simple declarative configurations, supporting GPT, Claude, Gemini, etc., with CI/CD integration. Used by OpenAI and Anthropic.
TypeScript