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Open source alternatives to Windsurf[005]

Windsurf is an AI coding IDE whose agent reads your codebase, edits files across a project and runs commands alongside inline completion. Below are 5 self-hostable open source alternatives, ranked by GitHub popularity.

// EDITOR'S TAKE

kilocode is the closest to Windsurf's agentic loop, with orchestrator, architect, code and debug modes and any model you bring keys for, but it lives inside VS Code instead of shipping its own editor. Zed is the better editor outright and is genuinely fast, though its agent is less autonomous, and Aider is terminal-first for people who would rather keep the editor they have.

// FREQUENTLY ASKED

What is the best open source Windsurf alternative?

Zed is the most popular open source Windsurf alternative by GitHub stars (82,216 stars). The other 4 options are ranked above.

Are these Windsurf alternatives self-hostable?

Yes — every project listed here is open source and runs on your own infrastructure. Click into a project to see its license, stars, language, and current health status.

Are they free?

All projects shown are free and open source. Check each project's license page for the terms — most are MIT, Apache 2.0, or AGPL.

// PART OF THESE COLLECTIONS