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Alternatives

Products that do what OpenGravity – A zero-install, BYOK vanilla JS clone of Antigravity does

Hi. I’m a high school student studying for my GCSEs. I was using Google Antigravity heavily for my side projects, but I kept hitting the usage limits, and getting random "agent terminated" errors. So I decided to try build my own version of the IDE. I love the UI, so I copied it as accurately as possible, and then hooked up some logic into it, including the INCREDIBLY finicky webcontainer api. I tried to keep it super lightweight, no build steps, or dependencies, and now that its open source, I'm hoping people can build things on top of it that arent possible with closed source tools, like…

  1. 1

    Run and monitor several coding agents at once in an IDE

    Nov 2025

  2. 2

    Run coding agents directly from your terminal

    May 2026 · antigravity.google

  3. 3

    Keyboard-first control for Google Antigravity IDE

    Nov 2025

  4. 4

    Drive Antigravity agents from any browser

    14d ago · antigravity.google

  5. 5

    Gravity WebGL experiment in the Solar System

    2016

  6. 6IB

    2022 · multiplanetary.website

  7. 7
    Gravity99

    A modern RPC framework for Svelte, React, Solid and Vue

    2022

  8. 8

    Agentic AI workflow and prompt marketplace for dev teams.

    Nov 2025

  9. 9NO

    Hello HN! The day has finally come to stop adding features and start sharing what I've been building the last 5-6 months. It's a bit of CrewAI, OpenDevon, LangFuse/Cloud all in one, providing devs who prefer TypeScript an integrated framework thats provides a lot out of the box to start experimenting and building agents with. It started after peeking at the LangChain docs a few times and never liking the example code. I began experimenting with automating a simple Jira request from the engineering team to add an index to one of our Google Spanner databases (for context I'm the…

    2024 · github.com

  10. 10

    The world's first 8K 360° drone

    Dec 2025

  11. 11GI

    Just for fun and self education, I've built this over a weekend to teach myself why orbits exist, not just show planets going around. Something that was never clearly explain to me in school. It opens with a guided tour that builds the idea up step by step: two bodies and the equal/opposite force, inertia (the Sun is removed and Earth just drifts straight), then "an orbit is falling and continuously missing," cosmic velocities with a little rocket, Voyager 1 & 2's real gravity assists (the clock runs the actual 1977–1989 dates so the planets orbit into their grand-tour alignment and the…

    Jun 2026 · qunabu.github.io

  12. 12CA

    Hey Hacker News! Launching gptengineer.app into beta today. It's like Claude Artifacts, but: - you can edit the code in your fav IDE (two-way github sync) - installs npm packages - automatically picks up build and runtime errors and fixes them - very fast, built with rust The full stack capabilities are built on supabase (prefer to not have to handle auth + user data at this point so this is owned by the user) The seed for this project was an open source experiment, posted about that previously here: https://news.ycombinator.com/item?id=36422730 Would love feedback if you give…

    2024 · gptengineer.app

  13. 13OS

    Hey HN! I'm Zach from Adam (https://adam.new/). We’re building an AI co-pilot for mechanical CAD software. As part of our broader research, we built a browser-based Text-to-CAD app (https://news.ycombinator.com/item?id=44182206) and are now open sourcing it. This is a React SPA with a Supabase backend. What it does: * Generates parametric 3D models from natural language descriptions, with support for both text prompts and image references * Outputs OpenSCAD code with automatically extracted parameters that surface as interactive sliders for instant dimension…

    2025 · github.com

  14. 14

    A gravity simulator, with updated movement controls

    2016

  15. 15

    IDE that *still* works with Claude Code & Antigravity sub

    Jan 2026

  16. 16AS

    The little particles will gravitate to your cursor (or touch location), and can even enter stable orbits if the conditions are right! Mainly an excuse for me to experiment with wasm and WebGL, but it makes for a surprisingly good fidget toy.

    2024 · aestuans.github.io

  17. 17MF

    Hi, I'm Will. I'm 24, autistic, and have OCD tendencies. I'm learning to code and this is my first public project. I’d really appreciate your feedback and encouragement! This project lets me solve some of my OCD problems online. There are a couple of parts of the forums that I visit – Space Battles, Sufficient Velocity, and Questionable Questing – that I want to remove. Specifically, I hate seeing indicators of how much is left in a forum thread, because I keep thinking about how much content is left. It stops me from immersing myself in the story. It stressed me out. Before I learned to…

    2024 · github.com

  18. 18

    From request to result in one Telegram thread

    Mar 2026 · opengravity.space

  19. 19

    Control your Antigravity IDE from anywhere

    Jul 2026 · open-vsx.org

  20. 20FS

    Permission-first config kit for Claude Code and Google Antigravity IDE. Installs CLAUDE.md + GEMINI.md + 10 specialist agents + 28 skills with one command. MIT license.

    May 2026 · github.com

  21. 21

    Local AI PDF Editor. 100% Private. Zero Cloud. Elite.

    Feb 2026

  22. 22

    Vibecode Remote Code Helper

    Apr 2026 · apps.apple.com

  23. 23

    Allows Agentic IDEs like Antigravity to build n8n workflows

    Feb 2026

  24. 24AN

    Most games have limits. You can only use preset features, need coding for customization & adding mods, require expensive extra devices. We wanted to remove those barriers. That’s why we are building space zero—a browser based 3D world powered by AI. We plan to build players can freely mix items to generate unexpected creations with unique properties and sounds. Also the world itself is dynamically generated, evolving endlessly. I uploaded a demo version I’ve been working on for the past month! I hope to get any feedbacks or comments :)

    2025 · 0.space

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