Best AI Tools to Write code

ECC

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

Canva AI

AI-powered design and content creation integrated with Canva

Cursor

AI coding editor and autonomous software development platform

DeepSeek

AI assistant for reasoning, coding, research, and agent tasks

Meta AI

Free AI assistant integrated across Meta apps and devices

Superpowers

An agentic skills framework & software development methodology that works.

gemini-cli

An open-source AI agent that brings the power of Gemini directly into your terminal.

ponytail

Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

OpenHands

🙌 OpenHands: AI-Driven Development

open-design

🎨 The open-source Claude Design alternative. 🖥️ Local-first desktop app. 🖼️ Your coding agent becomes the design engine: prototypes, landing pages, dashboards, slides, images & video — real files, HTML/PDF/PPTX/MP4 export. 🤖 Claude Code / Codex / Cursor / Gemini / OpenCode / Qwen & 20+ CLIs via BYOK.

gpt-engineer

CLI platform to experiment with codegen. Precursor to: https://lovable.dev

goose

an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM