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Kilo Code

Open-source agentic engineering platform

open sourceupdated Aug 16, 2026

Open-source agentic AI coding platform for VS Code, JetBrains IDEs, CLI, Slack, and Cloud that combines inline autocomplete, browser automation, automated refactoring, and custom planning/coding/debugging modes. Operates on a plan-act-observe-fix loop with 500+ model support (Gemini, Claude, GPT via OpenRouter). Memory Bank feature maintains repo-resident context across sessions, and codebase indexing keeps the agent grounded in your project.

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Kilo Code is an open-source agentic AI coding platform for VS Code, JetBrains IDEs, the command line, Slack, and Cloud that combines inline autocomplete, browser automation, automated refactoring, and custom modes for planning, coding, and debugging into a single tool. It operates using a plan-act-observe-fix loop where it analyzes your repository to understand file structure and dependencies, plans the required steps, executes them by editing files and running terminal commands, and reviews output to fix issues automatically. Kilo Code addresses the need for a comprehensive AI coding agent that handles the full development workflow from design through implementation and debugging.

Kilo Code supports 500+ AI models including Gemini, Claude, and GPT families, and integrates with OpenRouter for flexible backend connections. Key differentiators include a Memory Bank that serves as a structured, repository-resident knowledge base helping the agent maintain context across sessions, codebase indexing for quickly locating relevant code and documentation, an MCP Server Marketplace for extending agent capabilities with external tools, and multiple built-in modes including Code, Ask, Architect, and Debug modes. The platform is the number one coding agent on OpenRouter with over 1.5 million users and 40T+ tokens processed.

Kilo Code is designed for developers who want a feature-rich, open-source alternative to commercial AI coding agents like Cursor and GitHub Copilot. It is particularly appealing for cost-conscious developers who want access to a wide range of AI models without being locked into a single provider. Compared to Cline and Roo Code, Kilo Code offers broader IDE support with JetBrains and CLI availability, a built-in MCP marketplace, and the Memory Bank feature that helps maintain persistent context across coding sessions.

Pricing

Free OSS/BYOK; Teams $15/user/mo; Kilo Pass from $19/mo; KiloClaw from $55/mo

Platforms

VS Code, JetBrains, CLI

Categories

Tags

Use Cases

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Used in Stacks

Comparisons

Kilo Code vs Cursor — Free VS Code Extension vs Premium AI IDE for Coding

Kilo Code is a free, open-source VS Code extension with 9.5K+ stars, four structured workflow modes, and 500+ model support via its MCP marketplace. Cursor is the market-leading AI IDE at $20/month with $2B ARR, deep codebase indexing, and Background Agents. This comparison examines whether the free extension can match the premium IDE's capabilities for different developer profiles.

Kilo CodeCursor

Cline vs Kilo Code — Open-Source VS Code AI Coding Extensions Head-to-Head

Cline and Kilo Code are both open-source VS Code extensions that transform your editor into an AI coding agent without requiring a separate IDE. With Cline at 59K+ GitHub stars and Kilo Code at 9.5K+ stars backed by $8M Series A funding, both have proven real-world adoption. This comparison examines which free extension delivers more value — Cline's battle-tested unified agent loop or Kilo Code's structured workflow modes and 500+ model MCP marketplace.

ClineKilo Code

FAQ

What is Kilo Code?

Open-source agentic AI coding platform for VS Code, JetBrains IDEs, CLI, Slack, and Cloud that combines inline autocomplete, browser automation, automated refactoring, and custom planning/coding/debugging modes. Operates on a plan-act-observe-fix loop with 500+ model support (Gemini, Claude, GPT via OpenRouter). Memory Bank feature maintains repo-resident context across sessions, and codebase indexing keeps the agent grounded in your project.

Is Kilo Code free?

Yes — Kilo Code is open source and free to use. Free OSS/BYOK; Teams $15/user/mo; Kilo Pass from $19/mo; KiloClaw from $55/mo

Is Kilo Code open source?

Yes — Kilo Code is open source.

What are the best Kilo Code alternatives?

The top editor-verified Kilo Code alternatives are Cline, Kiro, Serena.

How does Kilo Code score in our review?

Our hands-on review scores Kilo Code 82/100 overall, based on speed, privacy, and developer-experience testing.