Free Promptfoo Alternatives in 2026

Looking for free alternatives to Promptfoo? We've gathered 8 similar AI Tools, including 1 with free or freemium plans, so you can compare no-cost options and find the right fit. Top free picks include Opik.

Best Free Promptfoo Alternatives

1. Opik (Freiraum) (Freie Option) — Open-Source LLM-Evaluierung und Beobachtungsplattform von Comet. More Promptfoo alternatives
2. Agent QA (Preis variiert) — Write web and mobile tests in natural language. More Promptfoo alternatives
3. Ragas (Preis variiert) — Evaluate AI application behavior with a testing framework. More Promptfoo alternatives
4. Testim (Preis variiert) — Create and maintain automated UI tests with AI assistance. More Promptfoo alternatives
5. Evidently AI (Preis variiert) — Evaluate and monitor language models and predictive AI systems. More Promptfoo alternatives
6. Keploy (Preis variiert) — Test code changes against captured API behavior and dependencies. More Promptfoo alternatives
7. LLM Comparator (Preis variiert) — Compare model responses with an interactive evaluation interface. More Promptfoo alternatives
8. TruLens (Preis variiert) — Trace AI applications and score their behavior with evaluation Tools. More Promptfoo alternatives

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