Plandex

Free open-source AI coding agent for massive codebases — plans, edits, verifies.
Plandex is a free, open-source terminal-based AI coding agent built for huge real-world projects — millions of tokens of context, persistent plans, sandboxed file changes, branching, version control, and automated debug loops. Unlike chat-based copilots, Plandex thinks in tasks: it researches your repo, drafts a plan, executes file edits, runs commands, and verifies results before applying them. The most powerful free AI engineer for codebases that don't fit in a single context window.
Tags
Plandex · plandex · plandex.ai · plandex ai · open source coding agent · free AI engineer · terminal AI agent · large codebase AI · AI Agents · Coding & Development · free AI tool · free Cursor alternative