Prompt & Eval

10 tools
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OSSFreePopular

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

DeepTeam

OSS red-teaming framework for LLMs and agents

⭐ 2,300
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

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Coding Assistants (27)Autonomous Agents (11)Agent Frameworks (16)Pipelines & RAG (12)LLM Infrastructure (45)Design & UI (11)AI-Augmented Code Quality (6)Documentation (9)Product & PM (6)MCP Servers (20)Specifications (11)Spec-Driven Dev (5)AI Code Review (4)Fine-tuning (7)Voice AI (11)Multimodal (11)Browser Automation (7)Observability (14)Memory & Persistence (7)AI Guardrails (6)