Claude CodeAbout Plandex
Plandex is a terminal-based AI coding agent designed for big tasks — the kind that span many files and would blow past a normal context window. It manages an effective context up to around 2M tokens and keeps your changes in a protected sandbox, so nothing touches your project files until you approve it.
That review-first design is its signature: you can let the agent plan and generate extensive changes, then step through diffs and apply exactly what you want. You bring your own model and can self-host the whole thing, including the server and database.
It's licensed under MIT and AGPL (open-source server), with a focused, active community. For developers tackling large, multi-file changes who want an agent with serious context and careful, reviewable output, Plandex is a standout open alternative to Claude Code.
What makes it different
Manages up to roughly 2M tokens of context, built for large, multi-file tasks.
Changes stay in a protected sandbox until you review each diff and choose to apply it.
Plans and generates extensive changes from the command line, with clear controls.
Connect your own provider or model and self-host the server and database.
Go
PostgreSQL
DockerThe honest read
- Built for large, multi-file tasks with big context
- Review-first sandbox keeps your project safe
- Fully self-hostable, including server and DB
- Open source (MIT / AGPL)
- Terminal-native and scriptable
- Self-hosting the server and Postgres takes setup
- Big-context runs on premium models can cost more
- Terminal-only workflow isn't for everyone
- Smaller community than the biggest agents
Quick answers
Yes — Plandex is open source (MIT and AGPL). You pay for the model you connect and, if self-hosting, your own server.
Plandex is open source, self-hostable and built around a huge context and a review-first sandbox for large tasks, while Claude Code is tied to Anthropic's platform.
It manages an effective context up to roughly 2 million tokens, making it suited to large, multi-file changes.
No — changes are held in a sandbox so you review each diff before applying, keeping your project safe.
Yes — you can self-host the full stack, including the server and PostgreSQL database, and bring your own model.
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