Promptly – Prompt Management Platform for LLM Apps
We are excited to show Promptly (https://trypromptly.com), a prompt management platform for LLM apps that makes it easy to experiment, share and manage prompts in production. With Promptly, users can: - Try out different prompts and model parameters for various providers - Quickly share prompt snippets together with parameters and generated output. Think of it as CodePen or JSFiddle for prompts - Create high level endpoints on top of provider APIs (Open AI, DreamStudio etc) with templated and versioned prompts - Use built-in caching for endpoints that will help save on Open AI…
Promptly – Prompt Management Platform for LLM Apps launched on February 23, 2023 with 15 votes, #1,331 of 3,829 launches that month and more than 75% of that year's launches.
In plain words
Promptly is a prompt management platform that helps developers experiment with and deploy language model applications. It allows users to test different prompts and model parameters across multiple providers, share prompt configurations with generated outputs, and create versioned API endpoints with built-in caching to reduce costs and latency. The platform supports OpenAI and Stable Diffusion, making it useful for teams building LLM-powered applications that need to iterate on prompts and manage them in production.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
We are excited to show Promptly (https://trypromptly.com), a prompt management platform for LLM apps that makes it easy to experiment, share and manage prompts in production. With Promptly, users can: - Try out different prompts and model parameters for various providers - Quickly share prompt snippets…
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- TOTry out the new ChatGPT API on Promptly2023 · trypromptly.com · ▲12
Hey HN Community, We're excited to announce the integration of the newly launched ChatGPT API into Promptly - a platform designed to make prompt management and sharing a breeze for developers. With Promptly, you can easily test out different prompts and model parameters for various providers, and quickly share prompt snippets together with parameters and generated output. It's like CodePen or JSFiddle, but for prompts! In addition to that, Promptly also allows you to create high-level endpoints on top of provider APIs (such as Open AI, DreamStudio, and more) with templated and versioned…
PrompTessor2025 · promptessor.com · ▲125After countless hours of solo coding, designing, and iterating, I’m both excited and nervous to share my first-ever product: PrompTessor — now live. As someone who constantly experiments with AI tools like ChatGPT and Midjourney, I often found myself stuck in a loop of trial-and-error. The issue wasn’t always the AI — it was often the prompt itself. That observation became the starting point for PrompTessor. This tool doesn’t just optimize your prompt — it analyzes it. It gives you: - A prompt score - A breakdown of strengths and weaknesses - A fully optimized version of your prompt - And…
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Source: Show HN post ↗ · launch text quoted in part
