Trae

Trae is a free AI-powered integrated development environment developed by ByteDance that provides AI code completions, an inline AI assistant, and an autonomous Builder agent, all backed by access to premium AI models like Claude and GPT at no cost to the user. Built on a VS Code foundation, it offers a familiar editing experience with powerful AI capabilities that typically require paid subscriptions elsewhere. The most compelling aspect of Trae is its pricing: completely free access to advanced AI models that other editors charge $20 or more per month for. The tool includes standard AI coding features like intelligent code completions, inline editing suggestions, and a chat panel for asking questions about your code. Where Trae goes further is with its Builder mode, an autonomous agent that can take natural language instructions and execute multi-step, multi-file coding tasks. Builder can create entire project structures, implement features across multiple files, run commands, and iterate on its work based on errors or feedback. This puts it in the same category as tools like Cursor's agent mode or Windsurf's Cascade, but without the subscription cost. Because Trae is built on VS Code's open-source foundation, it supports the VS Code extension marketplace, which means developers can bring their existing extensions, themes, and workflows. Codebase indexing allows the AI to understand your project structure and provide context-aware suggestions that account for your existing code patterns and dependencies. The AI chat supports referencing specific files, functions, or code selections, making it practical for asking targeted questions during development. Trae is best suited for individual developers and small teams who want access to capable AI coding assistance without committing to a monthly subscription. It is particularly attractive to students, freelancers, and developers who are exploring AI coding tools for the first time. The fact that ByteDance, a major technology company, backs the project provides some assurance of continued development and server capacity. However, the ByteDance connection does raise data handling questions for some developers, particularly those working on sensitive codebases or in regions with specific data sovereignty requirements. Usage limits may apply during periods of high demand, though the free tier is generous under normal conditions.