fedit is a free, open-source CLI file editor for developers, sysadmins, analysts, and power users. Surgical file editing without an IDE — target by content or block name, not line numbers. Supports Go, Python, JS, Rust, Java, C#, Ruby, PHP, HCL/Terraform. Built-in MCP server for AI agents (Claude, Cursor, Cline). Replaces sed/awk for structured edits. Benchmark: Claude 7/7, ChatGPT 1/7, Gemini 1/7. MIT licensed. Free forever.