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Alternatives

Products that do what ARE Playground—Action Rule Event Engine does

Open-source rule engine for JS, C#, and Dart + playground

  1. 1

    Iterate on cloud apps in milliseconds, not minutes

    2024

  2. 2MA

    2012 · meteor.com

  3. 3
    PlayJS138

    Playground JavaScript web, now with superpowers

    2023

  4. 4GP

    2021 · go-playground-wasm.vercel.app

  5. 5
    Eventline247

    IFTTT for developers

    2017

  6. 6

    Build event-driven email flows

    May 2026 · resend.com

  7. 7PE

    Inspired by Compiler Explorer and other playground/fiddle websites like jsfiddle, db-fiddle, Go playground, and Rust playground, I thought it would be cool to have a playground for nearly any program so I've been working on Program Explorer: a playground for running programs from containers. I am inspired by these playgrounds because they are great educational tools for quickly experimenting and as communication tools by sharing shortlinks that reproduce bugs for instance. I would love for every open source project that publishes a container to get their own playground for free. I'm…

    2025 · programexplorer.org

  8. 8

    A new creative coding environment in Framer X

    2019

  9. 9AP

    Hey, Jared Palmer (creator of this playground) here. Really excited to ship this. I’ve been building this over the past few weeks to compare LLMs from different providers like OpenAI, Anthropic, Cohere, etc. At Vercel, I manage our Frameworks division (including Next.js, Svelte, and Turbo) and wanted to also dogfood some of the latest features in a slightly larger application. This playground takes a lot of inspiration from https://nat.dev and is built on Tailwind, ui.shadcn.com, and some upcoming Vercel products we’re announcing soon. We’re going to continue adding models to…

    2023 · play.vercel.ai

  10. 10

    Learn serious code on your iPad in a seriously fun way

    2016

  11. 11

    Animation and 3D editor for JavaScript

    2022

  12. 12

    Open-source MCP playground to test and introspect servers

    Nov 2025

  13. 13
    Hi.Events501

    Open-source alternative to Eventbrite & Tito

    2024

  14. 14SP

    2021 · sqlime.org

  15. 15
    Control185

    Freehand website editor

    2023

  16. 16EA
  17. 17FA

    Hello! We just released freeact (https://github.com/gradion-ai/freeact), a lightweight agent library that empowers language models to act as autonomous agents through executable code actions. By enabling agents to express their actions directly in code rather than through constrained formats like JSON, freeact provides a flexible and powerful approach to solving complex, open-ended problems that require dynamic solution paths. * Supports dynamic installation and utilization of Python packages at runtime * Agents learn from feedback and store successful code actions as…

    2025 · github.com

  18. 18

    Event driven operations - 'IFTTT for IT ops'

    2015

  19. 19IA

    I'm building Incidental, an open-source (MIT license) incident management platform. I've been working on it for the past couple of months as a hobby, and now it's at a state where I'm comfortable sharing it. This is also my first open source project. Features: - Custom roles - Custom severities - Integrated with Slack - Web interface Todos: - Custom fields - Custom workflows Website: https://incidental.dev Github: https://github.com/incidentalhq/incidental I'd love to hear your feedback. Thanks!

    2024 · github.com

  20. 20

    A chrome extension for running selected text in CodePen

    2020

  21. 21

    AI agents that run automatically on business events

    May 2026 · adaptive.ai

  22. 22TN

    I am excited to introduce to you TargetJ, a new JavaScript framework that can animate anything. I have been working on this project for over two years, driven by the complexity of current UI frameworks. You can find the interactive documentation at www.targetj.io. I hope you find it useful for creating great web experiences. If you have any questions about the framework or want to share your thoughts, please leave a comment below. I’m eager to hear from you!

    2024 · github.com

  23. 23

    Simple, fast way to find and try any MCP server. No setup.

    Feb 2026

  24. 24

    GitHub repo: https://github.com/ArcadeMakerSources/ArcadeMaker (first of all, i want to say that I made this project for fun and challenge. I always wanted to create my own language. This has no business goal or something.) So the project is a 2D game engine (MonoGame backend) inspired by GameMaker 8. It includes its own IDE (built with WinForms) and an interpreted programming language that I wrote myself. The language—definitely the biggest challenge in the project—is a simple dynamically typed language. When I started, I had zero knowledge of how to build something like…

    26d ago · github.com

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