AI · alternatives · 2026
24 alternatives to OpenGravity – A zero-install, BYOK vanilla JS clone of Antigravity
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…
OpenGravity is a lightweight, open-source IDE built in vanilla JavaScript that replicates Google's Antigravity interface without installation or dependencies. Created by a high school student to overcome usage limits… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
- 1
Run and monitor several coding agents at once in an IDE
Nov 2025 · antigravity.google · its alternatives →
- 2
Keyboard-first control for Google Antigravity IDE
Nov 2025 · github.com · its alternatives →
- 3
Antigravity Remote Controlfree tier, from $0/mo▲165Drive Antigravity agents from any browser
Aug 2026 · antigravity.google · its alternatives →
- 4
Gravity WebGL experiment in the Solar System
2016 · github.com · its alternatives →
- 5
Antigravity AI Directory is a game-changer for developers looking to leverage autonomous AI workflows, premium prompts and MCPs. Its focus on modern development stacks and real-time collaboration makes building scalable, maintainable apps easier than ever. Excited to see how this revolutionizes AI-driven software development!
Nov 2025 · antigravityai.directory · its alternatives →
- 6IB
2022 · multiplanetary.website · its alternatives →
- 7
Frigade▲388Hey HN! Christian here, cofounder and CTO of Frigade (https://www.frigade.com). Our tool helps product and engineering teams quickly build in-app experiences like getting started checklists, product tours, account upsells, and nps surveys. Basically all the little things that can help boost your product's activation and retention rates, but that you don't really want to spend the time building from scratch. We built React UI components such as , , and and combined them with a web app that you can use to control user targeting, content management, sequencing, and more. These…
2023 · frigade.com · its alternatives →
- 8
Gravity▲99A modern RPC framework for Svelte, React, Solid and Vue
2022 · gravity.digitak.dev · its alternatives →
- 9
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 · its alternatives →
- 10
Leap▲112We just launched Leap, an AI developer agent that helps you build and deploy apps with real backends to your own AWS or GCP cloud. We built it because every AI app builder we tried fell short. They were fine for prototypes, but not for real systems. No support for proper backend infra, no isolated test environments, and sometimes shockingly no way to own your code. We build Leap to be more appropriate for developers: - Connect GitHub to put your code in a repo you control - Work with code generation using pull request–style revisions with diffs - Get Architecture diagrams and API docs for…
2025 · leap.new · its alternatives →
- 11
Gravity 8▲212Build a SaaS app at warp speed with a Javascript boilerplate
2021 · usegravity.app · its alternatives →
- 12
- 13
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 · its alternatives →
- 14
A gravity simulator, with updated movement controls
2016 · valentinvichnal.github.io · its alternatives →
- 15
We built two desktop apps for developers and data scientists who want AI assistance without subscription lock-in or API proxying, or to run against local models. - Calliope AI IDE: VSCode-based, full dev environment with AI chat, live coding, and autonomous agents - Calliope AI Lab: JupyterLab under the hood, with built-in AI chat and local Postgres Both free. No account. No login. BYOK (OpenAI, Anthropic, Google, Mistral, Ollama). How it's different from Cursor/Continue/Windsurf/Antigravity: Your API keys stay local. Requests go direct to providers – we don't route through…
Dec 2025 · calliope.ai · its alternatives →
- 16
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 · its alternatives →
- 17
From request to result in one Telegram thread
Mar 2026 · opengravity.space · its alternatives →
- 18
I'm Josh, founder of Synth. We've been working on coding agent optimization with method like GEPA and MIPRO (the latter of which, I helped to originally develop), agent evaluation via methods like RLMs, and large scale deployment for training and inference. We've also worked on patterns for memory, processing live context, and managing agent actions, combining it all in a single stack called Horizons. With the release of OpenAI's Frontier and the consumer excitement around OpenClaw, we think the timing is right to release a v0. It integrates with our sdk for evaluation and optimization but…
Feb 2026 · github.com · its alternatives →
- 19
- 20
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 · its alternatives →
- 21
Local AI PDF Editor. 100% Private. Zero Cloud. Elite.
Feb 2026 · play.google.com · its alternatives →
- 22
- 23
- 24
Open Launch▲29I've built Open-Launch, a modern open-source alternative to Product Hunt. - Open-source under MIT license - Modern stack (Next.js 15, React 19, TypeScript) - Voting and commenting system - Premium launch options - Real-time notifications - Anti-spam protection - Admin dashboard First launch scheduled for tomorrow at 8:00 AM UTC. GitHub: https://github.com/Drdruide/Open-Launch Website: https://open-launch.com Looking forward to your feedback and contributions!
2025 · open-launch.com · its alternatives →
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →