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Products that do what PromptJesus does

Free Prompt Engineering Platform

  1. 1
    Latitude685

    The open-source prompt engineering platform

    2024 · latitude.so

  2. 2

    Build, test & deploy AI prompts across 1600+ models at scale

    2025

  3. 3PO

    Hey HN! We’re Kevin and Steve. We’re building PromptTools (https://github.com/hegelai/prompttools): open-source, self-hostable tools for experimenting with, testing, and evaluating LLMs, vector databases, and prompts. Evaluating prompts, LLMs, and vector databases is a painful, time-consuming but necessary part of the product engineering process. Our tools allow engineers to do this in a lot less time. By “evaluating” we mean checking the quality of a model's response for a given use case, which is a combination of testing and benchmarking. As examples: - For generated…

    2023 · github.com

  4. 4

    Free & fast chain of prompts generator

    2024

  5. 5
    Prompt259

    The command line for the real world

    2016

  6. 6
    Prompto202

    Interact with various LLMs in your browser

    2024

  7. 7OS
  8. 8

    Open-source 'unit testing' stack for your prompts and data

    2023

  9. 9

    A platform for prompt engineers to generate AI art prompts

    2022

  10. 10

    Monetise your prompts & GPTs

    2023

  11. 11

    Free, fast & powerful prompt playground for GPT

    2023

  12. 12

    Enterprise AI Prompt Engineering with Multi-LLM + MCP

    2025

  13. 13

    Your ChatGPT prompt engineering community with free prompts.

    2023

  14. 14

    Version control and deployment for LLM prompts

    Mar 2026 · promptplane.ai

  15. 15

    Prompt Engineering Toolkit for Developers & Creators

    2025

  16. 16PP

    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…

    2023 · trypromptly.com

  17. 17

    Collect, organize, and share AI prompts. Free & Open Source.

    Dec 2025 · prompts.chat

  18. 18
    Diffyn10

    Prompt Engineering, Versioned and Visualized

    2025

  19. 19

    Empowering creators with AI prompt engineering tools

    Nov 2025 · promptvalar.com

  20. 20

    Your open, collaborative home for AI prompts.

    2025

  21. 21PA

    Even if you're not a Prompt whiz, you can still get top-notch results just like the pros. This Product will handle internally handle boring And Cognitively demanding prompt Engineering. Just pick a service, fill in the keywords, and get the desired result! Open Source , Free , Privacy Friendly , Crowd Source Prompts, No Login Required. You can submit Features(https://prompt-apps.canny.io/feature-requests?sort=top) and Prompts (https://prompt-apps.canny.io/prompt-conversion?sort=top)

    2023 · chatgpt-prompt-apps.com

  22. 22

    Organize, reuse, and master your prompts with AI

    Feb 2026 · play.google.com

  23. 23

    Ship prompt changes without touching your codebase

    Jun 2026 · promptvlt.com

  24. 24

    An Open-sourced "All In One" Prompt Management Platform

    2025

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