Best Free & Open Source Alternatives to Kiro

Looking for a free or self-hosted alternative to Kiro? Below you'll find the best open source options — community-driven tools that let you own your data without vendor lock-in or recurring subscription costs.

Kiro is an AI-powered IDE by Amazon that uses spec-driven development — turning prompts into requirements, designs, and implementation tasks before writing code.

Modo

Open-source AI IDE that plans before it codes, using spec-driven development with requirements, design, and task steps.

Alternative to:

Cursor

Kiro

Kiro is an AI-powered IDE by Amazon that uses spec-driven development — turning prompts into requirements, designs, and implementation tasks before writing code.

Visit Kiro