PromptDX

Overview

PromptDX is an open-source TypeScript library that uses a Markdown-based DSL to define, version, and test LLM prompts. It treats prompts as code, enabling developers to manage prompt templates, track changes, and run evaluations within their existing CI/CD workflows.

Best for

Best for
Developers who want to manage LLM prompts as code with Git-based version control and testing.

Use cases

• Version control and review prompt templates alongside application code
• Run automated prompt regression tests in CI pipelines
• Collaborate on prompt design using a human-readable Markdown format

Notes

PromptDX is an open-source TypeScript library that uses a Markdown-based DSL to define, version, and test LLM prompts. It treats prompts as code, enabling developers to manage prompt templates, track changes, and run evaluations within their existing CI/CD workflows.

352 stars on GitHub. Last updated 2026-06-01. Licensed AGPL-3.0.

Use cases

• Version control and review prompt templates alongside application code
• Run automated prompt regression tests in CI pipelines
• Collaborate on prompt design using a human-readable Markdown format

Pros

• Leverages familiar Markdown syntax for prompt authoring
• Integrates with standard Git workflows for versioning and collaboration
• Lightweight and focused on developer tooling without vendor lock-in

Cons

• Limited to TypeScript/Node.js ecosystems
• Small community with 352 GitHub stars and minimal documentation
• No built-in support for non-text modalities like images or audio

Indexed from awesome-llmops and enriched against its public facts.