All prompt tools
Every tool in the directory. Filter by category or search by name.
Pydantic Logfire
An OpenTelemetry-based observability service from the Pydantic team with first-class instrumentation for LLM calls and agent runs alongside ordinary application traces.
code2prompt
A command-line tool that turns a codebase into a single structured prompt with a source tree, respecting ignore rules and reporting the token count before you send it.
OpenEvals
A LangChain package of ready-made evaluators for common LLM checks such as correctness, conciseness and structured-output matching, usable inside or outside LangSmith.
OpenLLMetry
A set of OpenTelemetry instrumentations for LLM frameworks and providers from Traceloop, exporting prompt and completion spans to any compatible observability backend.
PromptHub
A team-oriented prompt management tool with Git-style versioning, branching and side-by-side comparison of prompt revisions, plus an API for fetching approved prompts.
Purple Llama
Meta's collection of trust and safety tools for language models, including the CyberSecEval benchmark suite and the Llama Guard family of input and output classifiers.
Vibe Coding Prompt Template
Templates and a workflow for using language models to produce product requirement documents, technical designs and minimum viable product plans inside AI-enabled IDEs.
Portkey AI Gateway
The open-source gateway behind Portkey, routing to a large catalogue of models with built-in guardrails, retries and conditional routing rules configured per request.
Ragbits
A set of building blocks from deepsense.ai for generative AI applications, including typed prompt classes with input and output models plus a CLI for testing prompts.
Swarms
A multi-agent orchestration framework offering several collaboration topologies such as sequential, concurrent and hierarchical swarms, with per-agent system prompts.
Anthropic Prompting Documentation
Anthropic's official prompt engineering documentation for Claude, covering clarity, examples, structured formatting, chain-of-thought and extended thinking guidance.
Awesome Context Engineering
A survey repository tracing the move from prompt engineering to context engineering, indexing papers and systems that manage what goes into a model's context window.
Dynamic Prompts
An extension that adds a small template language to Stable Diffusion prompts, expanding wildcard files and bracketed choices into large batches of prompt variations.
OpenLIT
An OpenTelemetry-native observability platform for LLM and agent applications that also includes a prompt hub for versioned prompts and a vault for provider secrets.
W&B Weave
The Weights & Biases toolkit for LLM applications, automatically versioning prompts, code and datasets as objects and tracking every call for comparison and scoring.
Latitude
An open-source platform where prompts are written in a templating syntax, versioned in projects, evaluated against datasets and then deployed as callable endpoints.
Prompt Driven Development
A CLI that treats prompt files as the source of truth and generates code, tests and examples from them, so edits are made to the prompt and the code is regenerated.
PromptLayer Python Library
The open-source client library for PromptLayer that logs prompts and responses, attaches metadata and tags, and retrieves prompt templates from the hosted registry.
The Big Prompt Library
A large repository of prompts, system prompts and custom instructions spanning many assistants, including security-oriented prompts and jailbreak research material.
Datadog LLM Observability
Datadog's product for tracing agent and LLM calls inside existing application monitoring, with offline experimentation and quality evaluations on production spans.
Dynamiq
An orchestration framework for agentic and retrieval workflows, providing nodes for prompts, tools, retrievers and validators that are wired into a runnable graph.
Judgeval
An open-source stack for tracing agents and running evaluations on those traces, including custom judge models and regression tests triggered from production data.
Lakera
An AI security company whose products test and defend applications against prompt injection and jailbreaks, including a public game used to collect attack prompts.
PromptPerfect
A Jina AI product that automatically rewrites and optimizes a draft prompt for a chosen model, offering streaming comparison of the original and improved versions.
PromptTools
An open-source toolkit for experimenting with prompts across models and vector databases, running grids of prompt variants from a notebook and scoring the results.
Confident AI
The hosted platform built around the open-source DeepEval framework, adding shared datasets, regression comparison between prompt versions and production tracing.
Claude Code Prompt Templates
An independently authored set of prompt templates for AI coding agents, covering system prompts, tool prompts, delegation between agents and memory instructions.
Hunyuan PromptEnhancer
A prompt-rewriting model and toolkit from the Hunyuan team that expands short image prompts into clearer structured descriptions before they reach the generator.
Klu
A platform for designing, deploying and optimizing LLM applications, with collaborative prompt editing, versioned deployments and evaluation of saved test cases.
LangSmith
LangChain's hosted platform for tracing, evaluating and managing prompts, including a prompt hub with versioned prompts that can be pulled by the LangChain SDKs.
Learn Prompting
An online course and reference covering prompt engineering from basics through advanced techniques, prompt security and applied tracks, with free and paid tiers.
OpenAI Academy
OpenAI's free learning platform with courses and sessions on using and building with its models, including practical prompting material for work and development.
promptmap
A scanner that automatically tests a custom LLM application's system prompt against prompt injection and jailbreak rules, reporting the attacks that got through.
Graph of Thoughts
The official implementation of the Graph of Thoughts paper, which models a prompt-solving process as a graph of thoughts that can be merged, refined and scored.
Jasper
A marketing-focused AI platform with brand voice settings, reusable templates and agents, where prompt configuration is handled through campaign-level controls.
Leaked System Prompts
A curated archive of system prompts that have surfaced publicly from various chat assistants, kept as plain markdown files with the source noted for each entry.