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Products that do what Promptly – Prompt Management Platform for LLM Apps does

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…

  1. 1
    Latitude685

    The open-source prompt engineering platform

    2024 · latitude.so

  2. 2
    Prompto202

    Interact with various LLMs in your browser

    2024

  3. 3

    No-code platform for generative AI apps and workflows

    2024

  4. 4

    Open Source LLM Engineering Platform

    2024

  5. 5

    Advanced AI Prompt Manager

    Nov 2025

  6. 6RY

    Hey HN, we've just finished building a dynamic router for LLMs, which takes each prompt and sends it to the most appropriate model and provider. We'd love to know what you think! Here is a quick(ish) screen-recroding explaining how it works: https://youtu.be/ZpY6SIkBosE Best results when training a custom router on your own prompt data: https://youtu.be/9JYqNbIEac0 The router balances user preferences for quality, speed and cost. The end result is higher quality and faster LLM responses at lower cost. The quality for each candidate LLM is predicted ahead of time…

    2024 · unify.ai

  7. 7PE

    Nowadays, a common AI tech stack has hundreds of different prompts running across different LLMs. Three key problems: - Choices, picking from 100s of LLMs the best LLM for that 1 prompt is gonna be challenging, you're probably not picking the most optimized LLM for a prompt you wrote. - Scaling/Upgrading, similar to choices but you want to keep consistency of your output even when models depreciate or configurations change. - Prompt management is scary, if something works, you'll never want to touch it but you should be able to without fear of everything breaking. So we launched Prompt…

    2024 · jigsawstack.com

  8. 8
    Indigo AI426

    Your AI sidekick: save prompts and run them in any app

    2024

  9. 9IM

    Hi Everyone!! Our team is made up of passionate AI enthusiasts with backgrounds in marketing, and engineering. We’re united by a shared belief that the future of AI should be collaborative, accessible, and community-driven. With experience building consumer products and scaling platforms, we’re focused on creating a space where anyone from hobbyists to professionals can discover, organize, and share the best AI prompts and workflows. Promptly is built with a community-first mindset, where user contributions, creativity, and learning are at the heart of the experience.

    2025 · searchpromptly.com

  10. 10

    An AI Cost Optimization Infrastructure for LLM Applications

    Mar 2026

  11. 11
    Promptly137

    Customer support emails, supported with autopilot

    2021

  12. 12RR

    I built a single-file Python script that lets you run LLM prompts from the command line with templating, structured outputs, and the ability to chain prompts together. When I discovered Google's Dotprompt format (frontmatter + Handlebars templates), I realized it was perfect for something I'd been wanting: treating prompts as first-class programs you can pipe together Unix-style. Google uses Dotprompt in Firebase Genkit and I wanted something simpler - just run a .prompt file directly on the command line. Here's what it looks like: --- model: anthropic/claude-sonnet-4-20250514 output:…

    Nov 2025 · github.com

  13. 13

    LLM prompt testing suite

    2024

  14. 14

    Organize prompts, track changes, and iterate faster.

    Jan 2026

  15. 15CL
  16. 16PS

    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…

    2024 · promptmage.io

  17. 17
    Promptsy131

    Create, save, and share prompts

    Jan 2026

  18. 18

    The context manager and skills library for marketing teams

    Apr 2026

  19. 19

    Ship prompt changes without touching your codebase

    Jun 2026 · promptvlt.com

  20. 20

    Your best prompts built for you. Using the best LLM.

    Feb 2026

  21. 21

    Prompt Optimization for Vibe Coding

    Mar 2026

  22. 22NC

    Hey everyone! we just launched Promptly apps (https://trypromptly.com/), a no-code platform to build generative AI apps and chatbots. We allow users to build web apps and chatbots by chaining LLM APIs (we call processors) from providers like OpenAI, StabilityAI, Cohere etc, without writing any code. We also let users to bring in their own data and store it in a vector database to be used for context augmentation in their apps. Users can import data from a variety of sources including urls, sitemaps, PDFs and other file types Published apps are accessible to app's users via a…

    2023 · trypromptly.com

  23. 23

    Buy, sell & discover high-performing AI prompts

    Jul 2026 · ais-pre-covxahfbsaenvmz5tktukh-216136751576.asia-southeast1.run.app

  24. 24HP

    Hi HN. I heard you like dev tools and AI, so we wanted to share our project that we’ve been working on. We’re working on Horizon [1] - a higher level abstraction for LLMs so that developers can spend less time trying to grapple with LLMs to make them work and more time with users. This is the starting feature set which takes an auto-ML approach to identify the optimal LLM model, hyperparameters, and prompt - instead of just giving you the tooling to figure it out yourself. You can read more about it in our documentations. Our view is that as LLMs become increasingly commoditized and prompts…

    2023 · gethorizon.ai

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