PromptMage – Simplify and Manage Your LLM Workflows
Hello HN community, I'm excited to share a project we've been working on called PromptMage, an open-source tool designed to simplify the process of creating and managing complex workflows for large language models (LLMs). Backstory As developers and researchers working with LLMs, we found ourselves constantly grappling with the challenges of prompt iteration, testing, and version control. Existing tools didn't quite fit our needs for an integrated, intuitive workflow management solution. So, we decided to build one. PromptMage was born out of a desire to streamline these processes and make…
PromptMage – Simplify and Manage Your LLM Workflows launched on August 28, 2024 with 10 votes, #1,497 of 5,471 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 2 years on.
In plain words
PromptMage is an open-source, self-hosted tool for developers and researchers working with large language models. It provides a user-friendly interface for creating, testing, and managing LLM prompts and workflows, including features like a prompt playground for rapid iteration and comparison. The tool addresses challenges around prompt testing, version control, and workflow management that existing solutions did not adequately solve.
written from the facts on this page · September 2026
From the sources
PromptMage
In the maker’s words, at launch
Hello HN community, I'm excited to share a project we've been working on called PromptMage, an open-source tool designed to simplify the process of creating and managing complex workflows for large language models (LLMs). Backstory As developers and researchers working with LLMs, we found ourselves constantly…
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