---
title: "evidently vs promptfoo"
type: "comparison"
canonical_url: "https://www.graphcanon.com/compare/evidentlyai-evidently-vs-promptfoo-promptfoo"
tools: ["evidentlyai-evidently", "promptfoo-promptfoo"]
---

# evidently vs promptfoo

Neutral, constraint-first comparison with live GitHub stats.

| | [evidently](/tools/evidentlyai-evidently.md) | [promptfoo](/tools/promptfoo-promptfoo.md) |
| --- | --- | --- |
| Tagline | Evidently is an open-source ML and LLM observability framework. | Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. |
| Stars | 7,672 | 23,004 |
| Forks | 874 | 2,054 |
| Open issues | 285 | 402 |
| Language | Jupyter Notebook | TypeScript |
| License | Apache-2.0 | MIT |
| Categories | Evaluation & Observability | Developer Tools, Evaluation & Observability |

---

**Machine-readable endpoints**

- JSON: [`/api/graphcanon/graph?tool=evidentlyai-evidently`](/api/graphcanon/graph?tool=evidentlyai-evidently)
- LLM index: [/llms.txt](/llms.txt)
- Full corpus: [/llms-full.txt](/llms-full.txt)

_GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_