The Prompt Engineering Directory
Quality-scored directory of 4,298 prompt engineering tools, updated daily. Every tool scored on maintenance, adoption, maturity, and community signals.
Prompt engineering tools help design, optimise, and manage prompts for large language models — including frameworks, guardrails, and output parsers.
18
70–100
81
50–69
680
30–49
3,519
10–29
Top tools by quality score
| # | Tool | Score |
|---|---|---|
| 1 |
langfuse/langfuse
🪢 Open source LLM engineering platform: LLM Observability, metrics, evals,... |
|
| 2 |
promptfoo/promptfoo
Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability... |
|
| 3 |
Arize-ai/phoenix
AI Observability & Evaluation |
|
| 4 |
Mirascope/mirascope
The LLM Anti-Framework |
|
| 5 |
Helicone/helicone
🧊 Open source LLM observability platform. One line of code to monitor,... |
|
| 6 |
dottxt-ai/outlines
Structured Outputs |
|
| 7 |
microsoft/prompty
Prompty makes it easy to create, manage, debug, and evaluate LLM prompts for... |
|
| 8 |
promptslab/Promptify
Prompt Engineering | Prompt Versioning | Use GPT or other prompt based... |
|
| 9 |
microsoft/genaiscript
Automatable GenAI Scripting |
|
| 10 |
protectai/llm-guard
The Security Toolkit for LLM Interactions |
|
| 11 |
f/prompts.chat
f.k.a. Awesome ChatGPT Prompts. Share, discover, and collect prompts from... |
|
| 12 |
Agenta-AI/agenta
The open-source LLMOps platform: prompt playground, prompt management, LLM... |
|
| 13 |
linshenkx/prompt-optimizer
一款提示词优化器，助力于编写高质量的提示词 |
|
| 14 |
microsoft/promptflow
Build high-quality LLM apps - from prototyping, testing to production... |
|
| 15 |
x1xhlol/system-prompts-and-models-of-ai-tools
FULL Augment Code, Claude Code, Cluely, CodeBuddy, Comet, Cursor, Devin AI,... |
|
| 16 |
microsoft/promptbench
A unified evaluation framework for large language models |
|
| 17 |
hegelai/prompttools
Open-source tools for prompt testing and experimentation, with support for... |
|
| 18 |
rockbenben/ChatGPT-Shortcut
🚀💪Maximize your efficiency and productivity. The ultimate hub to manage,... |
|
| 19 |
plexe-ai/plexe
✨ Build a machine learning model from a prompt |
|
| 20 |
BoundaryML/baml
The AI framework that adds the engineering to prompt engineering... |
|
Browse by category
Domain-Specific Workflows
362 tools
Prompt Crafting Assistants
308 tools
Uncategorized
197 tools
Curated Prompt Libraries
151 tools
Codebase Context Extraction
131 tools
Advanced Prompt Protocols
131 tools
Prompt Engineering Resources
128 tools
Prompt Templating Frameworks
113 tools
LLM Fine-Tuning Frameworks
111 tools
Prompt Engineering Guides
110 tools
Prompt Injection Security
105 tools
Agentic Team Frameworks
105 tools
LLM Evaluation Frameworks
101 tools
Image Prompt Engineering
94 tools
Gemini Prompt Workbenches
83 tools
Product Management Prompts
82 tools
Evolutionary Prompt Optimization
81 tools
Streamlit App Templates
73 tools
GPT-Powered Applications
70 tools
Prompt Library Apps
67 tools
Browser Prompt Injection
63 tools
Cognitive Calibration Frameworks
63 tools
Career Application Automation
55 tools
Prompt Optimization Systems
53 tools
Code Review Automation
52 tools
Prompt Engineering Courses
50 tools
Output Parsing
49 tools
Video Prompt Engineering
47 tools
Domain Agent Frameworks
46 tools
Optimization
46 tools
AI Development Workflows
44 tools
Content Generation Automation
44 tools
Generative AI Platforms
41 tools
Prompt Management Systems
41 tools
Prompt Collections Libraries
40 tools
LangChain Prompt Templates
39 tools
Persona Chatbot Systems
39 tools
Prompt Token Optimization
38 tools
AI Learning Curriculum
37 tools
LLM Testing Frameworks
37 tools
Specialized Domain Chatbots
35 tools
Reasoning Chain Frameworks
34 tools
VS Code Prompt Tools
34 tools
AI Debate Arenas
33 tools
Vibe Coding Guides
33 tools
Copilot Prompt Management
31 tools
Multi-Agent AI Systems
31 tools
Prompt Library
31 tools
Prompt Experimentation Platforms
29 tools
LLM Workflow Orchestration
29 tools
Nano Banana Prompts
28 tools
LLM Observability Platforms
27 tools
Prompt Optimization Extensions
22 tools
Sales Lead Automation
21 tools
Financial AI Agents
20 tools
Prompt Engineering Frameworks
19 tools
ML Project Portfolios
18 tools
ComfyUI Prompt Management
17 tools
Music Prompt Generation
17 tools
Portfolio Showcase Builders
17 tools
Prompt Engineering Optimization
14 tools
Text Summarization Tools
14 tools
Prompt Engineering Tools
13 tools
Prompt Engineering Techniques
13 tools
RAG Document Systems
13 tools
Guardrails
12 tools
Prompt Engineering Systems
10 tools
Prompt Engineering Games
10 tools
Llm Firewall Defense
9 tools
Natural Language SQL
9 tools
Knowledge Distillation Frameworks
7 tools
Prompt Management Tools
6 tools
Prompt Engineering Libraries
6 tools
Prompt Management Extensions
6 tools
Ai Red Teaming
5 tools
Prompt Framework
5 tools
Chatgpt Prompt Templates
4 tools
Comfyui Extensions
4 tools
Prompt Engineering Mcp
3 tools
Prompt Engineering Security
3 tools
Ai Image Generation Platforms
3 tools
Llm Pentest Automation
2 tools
Ai Text Humanization
2 tools
Ai Tutoring Platforms
2 tools
Ai Content Writing
2 tools
Continual Learning Frameworks
2 tools
Chain Of Thought Reasoning
2 tools
Llm Finetuning Frameworks
2 tools
Llm Interpretability Explainability
2 tools
Diffusion Model Frameworks
2 tools
Task Oriented Dialogue Systems
2 tools
Generative Ai Learning
1 tools
Agent Framework Platforms
1 tools
Vibe Coding Agents
1 tools
Code Completion Copilots
1 tools
Synthetic Data Generation
1 tools
Cursor Rules And Configs
1 tools
Ai Agent Vulnerability Scanning
1 tools
Streamlit Chatbot Apps
1 tools
Chatgpt Resource Collections
1 tools
Codebase Context Generation
1 tools
Competitive Agent Games
1 tools
Chat Export Tools
1 tools
Deepseek Deployment Tools
1 tools
Cursor Agent Rules
1 tools
Ai Story Generation
1 tools
Text To Image Wrappers
1 tools
Claude Api Proxies
1 tools
Graph Neural Networks
1 tools
Codex Deployment Clients
1 tools
Code Model Training
1 tools
Agent Framework Patterns
1 tools
Nlp Learning Resources
1 tools
Ai Presentation Generation
1 tools
Code Audit Agents
1 tools
Document Generation Agents
1 tools
Personal Llm Companions
1 tools
Ai Code Assistants
1 tools
Ai Service Sdks
1 tools
Transformer Based Summarization
1 tools
Multi Provider Llm Interfaces
1 tools
Domain Specific Copilots
1 tools
Agent Context Compilation
1 tools
Claude Code Agents
1 tools
Agent Skill Libraries
1 tools
Llm Comparison Evaluation
1 tools
Gemini Web Chatbots
1 tools
Ai Terminal Agents
1 tools
Ai Video Generation
1 tools
Natural Language Sql Builders
1 tools
Ml Drift Detection
1 tools
Gpt2 Pretraining Fine Tuning
1 tools
Media Generation Skills
1 tools
Semantic Kernel Tools
1 tools
Academic Paper Tools
1 tools
Comfyui Node Extensions
1 tools
Text To Image Generation
1 tools
Chatgpt Api Wrappers
1 tools
Seismic Deep Learning
1 tools
Graph Language Models
1 tools
Obsidian Ai Plugins
1 tools
Code Context Packaging
1 tools
Rag Curated Resources
1 tools
Gpt Implementation Tutorials
1 tools
Ai Code Generation
1 tools
Ai Podcast Generation
1 tools
Multi Agent Code Generation
1 tools