Vimux

vimux provides tight integration between Vim/Neovim and tmux so you can run shell commands, tests, and REPLs in a tmux pane without leaving the editor. It standardizes a set of actions—open a runner pane, send the current line or visual selection, rerun the last command, interrupt, and close—so the edit-run-inspect loop becomes muscle memory. You can keep your code in one window and a tmux pane dedicated to build or test output, toggling focus as needed. The plugin works well with language tooling and test runners, making it easy to wire project-specific commands to mappings. Because it delegates execution to tmux, long-running tasks never block Vim’s UI and you keep full terminal capabilities for colors, prompts, and interactive programs. It’s a lightweight way to turn a tmux session into an external console for Vim while maintaining a clean, scriptable workflow.