QA & AI testing tool directory · QA Tool Atlas

The directory

Every listing states its evidence status

Filter by the constraints that actually matter: workflow, pricing model, framework support, deployment and editorial confidence.

LangSmith
Editors’ pick
AI & LLM testing · LLM evaluation platforms
not
scoredLangSmith editorial score
Evaluation, tracing and prompt management platform from the LangChain team.
- Python
- TypeScript
- GitHub Actions
Free planVendor researchPricing may have changed — not yet verified
Langfuse
AI & LLM testing · LLM evaluation platforms
not
scoredLangfuse editorial score
Open-source LLM engineering platform: traces, evals and cost analytics.
- Python
- TypeScript
- Docker
- Kubernetes
Open sourceVendor researchPricing may have changed — not yet verified