Best Antigravity alternatives
8 tools developers use instead of Antigravity, ranked by popularity. 8 offer a free plan and 3 are open source. Updated October 2026.
-
Open-source VS Code extension that turns the editor into an autonomous coding agent, using your own API key and an approval gate before each action.
-
Open-source agentic coding platform with five agent modes, support for 500+ models at no markup, an MCP marketplace, and parallel subagents.
-
Google's open-source terminal coding agent built on Gemini models with a 1M-token context window. Shut down for free consumer accounts June 18, 2026.