Best 5 to use in 2026

Qwen Code is an open source AI coding agent that lives mainly in your terminal. It is built to work best with Qwen models, especially Qwen3-Coder and newer versions like Qwen3.6, Qwen3.7, and Qwen3.8. It reads your codebase, understands what you are asking for in plain language, and then plans, writes, and checks the code for you.

OpenCode is a free, open source AI coding agent made for developers. It works in your terminal, as a desktop app, inside popular code editors, and through a local web interface.

Kilo Code is a tool that helps you write and fix code using AI. It works inside your code editor, in the terminal, in the cloud, and even on your phone, so you can keep working wherever you are.

Cline is an open-source AI coding agent that works inside VS Code, JetBrains, or the terminal. It reads your codebase, understands how files connect, and helps you write, edit, and fix code using plain language instructions. Instead of just suggesting code, Cline can run terminal commands, use a browser to test web pages, and make changes across many files at once. It has two modes: Plan mode explores your project and creates a strategy, while Act mode carries out the work step by step. You stay in control since Cline asks for approval before making changes, though you can also turn on auto-approve for faster work. It supports many AI models, so you are never locked into one provider.

Zed is a code editor built to feel instant, even when you are working on large projects. It is written in Rust and uses its own graphics system, so typing, scrolling, and searching happen with almost no delay.