✨ ai assistants

Antigravity costs $15/mo.
These cost $0.

8 free alternatives to Antigravity, checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.

⚡ Quick Verdict · 2027 Guide

The top-rated free, open-source replacement for Antigravity is OpenCode (MIT Open Source). Across this category, 2 self-hostable tools are available (including pi and Zero). Switching a 5-person team saves up to $900/year compared to Antigravity's $15/mo subscription.

The catch: It gives you one agent with tools rather than an orchestrator that splits a task across research, coding, browser and review workers.

See the 8 picks ↓

Antigravity vs Free Alternatives

Quick side-by-side comparison · $0/mo vs $15/mo

Alternative	Type	License	Where It Runs	Stars	Head-to-Head
OpenCode	open source	MIT	Local	★ 225.1k	Antigravity vs OpenCode →
pi	open source	Open Source	Self-host	★ 120.5k	Antigravity vs pi →
Zed	open source	GPL-3.0+	Local	★ 93.9k	Antigravity vs Zed →
Cline	open source	Apache-2.0	Local	★ 71.4k	Antigravity vs Cline →
Kilo	open source	Open Source	Local	★ 27.9k	Antigravity vs Kilo →
CodeEdit	open source	Open Source	Local	★ 23.1k	Antigravity vs CodeEdit →
Athas	open source	Open Source	Local	★ 3.1k	Antigravity vs Athas →
Zero	open source	Open Source	Self-host	★ 1.8k	Antigravity vs Zero →

The picks

8 open source · ranked by fit

01
OpenCode
open sourceMITLocal
225.1knov 2026
Open source AI coding agent that works in your terminal, IDE, or desktop app, supporting 75+ LLM providers with no code storage.
The catch vs Antigravity
It gives you one agent with tools rather than an orchestrator that splits a task across research, coding, browser and review workers.
Install, platforms & data +
platforms
desktopclione-click install
install
Install script, Homebrew or npm
setup
You bring and pay for provider API keys, one account per vendor
engines
Dozens of providers via AI SDK and Models.dev, including hosted APIs and local OpenAI-compatible or Ollama backends
your data
Source files stay in the working repo; credentials and session data live under the local OpenCode data directory
checked
2026-11-07
Visit opencode.ai ↗Source Compare vs Antigravity →also replaces 18 other apps →
02
pi
open sourceOpen SourceSelf-host
120.5knov 2026
Terminal-based coding agent with a minimal core, 15+ LLM providers, tree-structured session history, and a TypeScript extension system for building your own workflows.
The catch vs Antigravity
Requires self-hosting setup, updates, and server maintenance compared to managed Antigravity.
Install, platforms & data +
platforms
webself-hosteddocker to self-host
install
Clone https://github.com/earendil-works/pi or deploy with Docker Compose
setup
Deploy via Docker or binary release from GitHub and configure environment variables.
your data
All application data and configuration live on your own server or local database.
checked
2026-11-07
Visit pi.dev ↗Source Compare vs Antigravity →also replaces 6 other apps →
03
Zed
open sourceGPL-3.0+Local
93.9knov 2026
A Rust-built code editor from the creators of Atom and Tree-sitter, combining native performance with multiplayer collaboration and deep AI integration.
The catch vs Antigravity
It requires changing editors and still has a smaller extension ecosystem and less mature AI autocomplete and indexing workflow than Cursor.
Install, platforms & data +
platforms
desktopone-click install
install
Direct desktop download, Homebrew, winget or install script
setup
Editor installation is clean; AI needs a Zed account, provider subscription or key, gateway, or local model, and platform hardware support varies
engines
Zed-hosted models, provider API keys or subscriptions, OpenRouter, Vercel AI Gateway, Bedrock, Ollama, LM Studio, OpenAI-compatible local servers and external ACP agents
your data
Source files stay local; provider keys use the system keychain, while AI prompts and code context go to the selected provider or local model
checked
2026-11-07
Visit zed.dev ↗Source Compare vs Antigravity →also replaces 8 other apps →
04
Cline
open sourceApache-2.0Local
71.4knov 2026
AI coding agent that runs inside VS Code and the terminal, supporting multi-file edits, bash execution, and any LLM provider via bring-your-own-key.
The catch vs Antigravity
No worker-agent delegation and no browser verification step, so long multi-stage tasks stay a manual relay.
Install, platforms & data +
platforms
desktopcliextensionone-click install
install
VS Code or JetBrains extension, or npm-installed CLI
setup
Sign in for Cline inference or bring your own key
engines
Anthropic, OpenAI, Google, OpenRouter, Bedrock, Azure, Vertex, Groq, Ollama, LM Studio and OpenAI-compatible endpoints
your data
Code stays in the repo and task history is stored locally; prompts and context go to the chosen provider
checked
2026-11-07
Visit cline.bot ↗Source Compare vs Antigravity →also replaces 20 other apps →
05
Kilo
open sourceOpen SourceLocal
27.9knov 2026
Open source AI coding agent with 500+ models, bring-your-own-key support, and specialized modes for writing, debugging, and planning code across IDEs and CLI.
The catch vs Antigravity
Community-driven open source project without dedicated enterprise SLAs.
Install, platforms & data +
platforms
desktopcross-platformone-click install
install
Clone https://github.com/kilo-org/kilocode or deploy with Docker Compose
setup
Download the native package or installer for your operating system.
your data
All application data lives locally on your own machine.
checked
2026-11-07
Visit kilo.ai ↗Source Compare vs Antigravity →also replaces 8 other apps →
06
CodeEdit
open sourceOpen SourceLocal
23.1knov 2026
A lightweight, natively built editor. Open source and free forever. Develop any project using any language at speeds like never before.
The catch vs Antigravity
Community-driven open source project without dedicated enterprise SLAs.
Install, platforms & data +
platforms
desktopcross-platformone-click install
install
Clone https://github.com/codeeditapp/codeedit or deploy with Docker Compose
setup
Download the native package or installer for your operating system.
your data
All application data lives locally on your own machine.
checked
2026-11-07
Visit codeedit.app ↗Source Compare vs Antigravity →also replaces 3 other apps →
07
Athas
open sourceOpen SourceLocal
3.1knov 2026
Open-source code editor for macOS, Windows, and Linux that puts coding agents, terminal, Git, and GitHub in a single window.
The catch vs Antigravity
Community-driven open source project without dedicated enterprise SLAs.
Install, platforms & data +
platforms
desktopcross-platformone-click install
install
Clone https://github.com/athasdev/athas or deploy with Docker Compose
setup
Download the native package or installer for your operating system.
your data
All application data lives locally on your own machine.
checked
2026-11-07
Visit athas.dev ↗Source Compare vs Antigravity →also replaces 5 other apps →
08
Zero
open sourceOpen SourceSelf-host
1.8knov 2026
Open-source AI coding agent for the terminal that works with 25+ model providers, keeps sessions on your disk, and ships as a single Go binary with no telemetry.
The catch vs Antigravity
Requires self-hosting setup, updates, and server maintenance compared to managed Antigravity.
Install, platforms & data +
platforms
webself-hosteddocker to self-host
install
Clone https://github.com/Gitlawb/zero or deploy with Docker Compose
setup
Deploy via Docker or binary release from GitHub and configure environment variables.
your data
All application data and configuration live on your own server or local database.
checked
2026-11-07
Visit zero.gitlawb.com ↗Source Compare vs Antigravity →also replaces 3 other apps →

Antigravity Head-to-Head Comparisons (2027)

Side-by-side trade-off breakdowns · 8 free alternatives

Antigravity vs OpenCodeMIT · Local →

Antigravity vs piOpen Source · Self-host →

Antigravity vs ZedGPL-3.0+ · Local →

Antigravity vs ClineApache-2.0 · Local →

Antigravity vs KiloOpen Source · Local →

Antigravity vs CodeEditOpen Source · Local →

Antigravity vs AthasOpen Source · Local →

Antigravity vs ZeroOpen Source · Self-host →

Frequently Asked Questions

Direct answers · Antigravity open-source replacements

What is the best free alternative to Antigravity?+

The top free alternative to Antigravity is OpenCode (open source, MIT). Open source AI coding agent that works in your terminal, IDE, or desktop app, supporting 75+ LLM providers with no code storage. Other popular Antigravity replacements include pi, Zed, Cline.

Can I self-host a free replacement for Antigravity?+

Yes. Of the 8 free alternatives to Antigravity, 2 can be self-hosted on your own server or local machine: pi (Open Source), Zero (Open Source).

How much does switching from Antigravity to a free alternative save?+

Antigravity starts at $15/month per seat ($180/year). Switching a 5-person team to a free alternative like OpenCode saves $900 per year in software subscription fees.

Should I vibe-code or build my own Antigravity clone from scratch?+

Our build verdict for Antigravity is NO (use a free alternative, save the tokens). Instead of paying recurring SaaS fees for Antigravity or rebuilding it from scratch, deploy one of the 8 battle-tested open-source alternatives like OpenCode.

What is the catch when switching from Antigravity to OpenCode?+

It gives you one agent with tools rather than an orchestrator that splits a task across research, coding, browser and review workers.