PromptMage
Simplify LLM workflow development with version control and testing
What is PromptMage? Complete Overview
PromptMage is a Python framework designed to simplify the development of complex, multi-step applications based on Large Language Models (LLMs). It provides an intuitive interface for creating and managing LLM workflows as a self-hosted solution. The framework facilitates prompt testing and comparison, incorporates version control features, and includes an auto-generated FastAPI for easy integration and deployment. PromptMage is suitable for developers, researchers, and organizations looking to improve productivity and foster practical use of LLM technology. It aims to bridge the gap in LLM workflow management by offering a pragmatic solution that makes LLM technology more accessible and manageable.
PromptMage Interface & Screenshots

PromptMage Official screenshot of the tool interface
What Can PromptMage Do? Key Features
Version Control Built-in
PromptMage includes integrated version control to track prompt development, making collaboration and iteration seamless. This feature allows users to maintain a history of changes, compare different versions, and revert to previous states if needed.
Prompt Playground
The intuitive Prompt Playground interface enables users to test, compare, and refine prompts rapidly. This feature supports rapid iteration and experimentation, helping users optimize their prompts for better performance.
Auto-generated API
PromptMage leverages FastAPI to automatically create an API for easy integration and deployment. This feature simplifies the process of connecting PromptMage workflows with other systems and applications.
Evaluation Mode
Users can assess prompt performance through both manual and automatic testing in Evaluation Mode. This ensures reliability before deployment, helping users identify and fix issues early in the development process.
Type-hint Support
PromptMage supports type hints for automatic inference and validation, enhancing code reliability and developer productivity. This feature helps catch errors early and improves the overall quality of the workflow.
Best PromptMage Use Cases & Applications
Product Review Research
An AI webapp built with PromptMage to provide in-depth analysis for products by researching trustworthy online reviews. This use case demonstrates how PromptMage can be used to create complex, multi-step applications that leverage LLMs for data analysis and summarization.
Collaborative Prompt Development
Teams can use PromptMage to collaboratively develop and refine prompts, leveraging version control and testing features to ensure high-quality results. This is particularly useful for research teams and organizations working on LLM-based projects.
Rapid Prototyping
Developers can use PromptMage to quickly prototype LLM-based applications, testing different prompts and workflows in the Prompt Playground before final deployment. This accelerates the development process and reduces time-to-market.
How to Use PromptMage: Step-by-Step Guide
Install PromptMage using simple installation steps. The framework can be deployed locally or on your server, with setup taking as little as 5 minutes.
Create your first LLM workflow by defining the steps and prompts. Use the intuitive interface to design multi-step applications based on your requirements.
Test and refine your prompts in the Prompt Playground. Compare different versions and iterate rapidly to optimize performance.
Use the built-in version control to track changes and collaborate with team members. Maintain a history of your prompt development for better management.
Deploy your workflow using the auto-generated FastAPI. Integrate with other systems and applications as needed.
Evaluate prompt performance using manual and automatic testing in Evaluation Mode. Ensure reliability before final deployment.
PromptMage Pros and Cons: Honest Review
Pros
Considerations
Is PromptMage Worth It? FAQ & Reviews
Yes, PromptMage is currently free to use. However, it is in alpha state and under active development, so features and API may change at any time.
PromptMage is a Python framework, making it accessible to a wide range of developers familiar with Python.
Yes, PromptMage welcomes contributions from the community. You can report bugs, improve documentation, fix bugs, or submit feature requests via the GitHub repository.
PromptMage is designed to be suitable for both small teams and large enterprises, offering features like version control and collaboration that are essential for organizational use.
You can get started by visiting the PromptMage website or GitHub repository, where you'll find installation instructions and documentation to help you set up and begin using the framework.