Prompt & Eval
9 toolsOSSFreePopular
RAGAS
RAG pipeline evaluation framework
⭐ 7,000
OSSFree
DeepEval
LLM evaluation framework — 14+ metrics
⭐ 5,500
OSSFree
PromptFoo
CLI/library for prompt testing and red-teaming
⭐ 5,000
OSSFree
TruLens
Open-source eval and tracking for LLM applications and RAG pipelines
⭐ 2,100
OSSFree
Agenta
OSS prompt management and LLM eval platform
⭐ 2,000
OSSFree
Inspect
Open-source LLM evaluation framework by the UK AI Safety Institute
⭐ 1,800
Free
Vellum
Prompt engineering, testing, and deployment platform
Free
PromptLayer
Prompt versioning, logging, and A/B testing
Free
Humanloop
Prompt management, A/B testing, and evals for production LLM apps
Other categories
Coding Assistants (26)Autonomous Agents (11)Agent Frameworks (16)Pipelines & RAG (12)LLM Infrastructure (44)Design & UI (11)AI-Augmented Code Quality (6)Documentation (9)Product & PM (6)MCP Servers (20)Specifications (11)Spec-Driven Dev (4)AI Code Review (3)Fine-tuning (6)Voice AI (10)Multimodal (10)Browser Automation (7)Observability (14)Memory & Persistence (6)AI Guardrails (5)