See it in Action.

Experience the raw speed and minimal interface of Klein. This demo showcases the core terminal workflow, from project navigation to advanced code refactoring.

klein_demo_v0.3.mp4 — terminal
01

Instant Startup

Klein is optimized for near-zero latency. It opens faster than any other IDE, ensuring your flow remains uninterrupted from the very first keystroke.

02

IDE Intelligence

LSP-powered auto-completion, diagnostics, and hover docs combined with Tree-sitter structural parsing. Full IDE intelligence without leaving the terminal.

03

Cross-Platform TIDE

Built for the terminal with native support for Windows, Linux, and macOS. Fuzzy file finder, project grep, rope-based editing, and 12+ language parsers out of the box.