Comparison
ECC vs promptfoo
A neutral, constraint-first comparison - live GitHub stats and typed relationships, not marketing.
| ECC | promptfoo | |
|---|---|---|
| Tagline | The agent harness performance optimization system | Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. |
| Stars | 227k | 23k |
| Forks | 35k | 2.1k |
| Open issues | 73 | 402 |
| Language | JavaScript | TypeScript |
| License | MIT | MIT |
| Last pushed | Jul 6, 2026 | Jul 7, 2026 |
| Categories | AI Agents, Developer Tools | Developer Tools, Evaluation & Observability |
Choose ECC if…
- More widely adopted - 227k stars vs 23k.
- Leaner open-issue backlog (73).
- Also covers AI Agents.