🪟 keep-split-ratio.nvim

Preserve split percentages on UI resize. If you have 70/30 or 50/50 vertical splits, resizing your terminal/editor resizes the splits proportionally.

• Lightweight. Does nothing until VimResized fires.
• Per-tab state.
• Respects winfixwidth columns (they keep their width).

Install

Lazy.nvim

{ "adlrwbr/keep-split-ratio.nvim", opts = {} }

Demo

As we resize the window,

Default	with keep-split-ratio.nvim
only the right side grows and shrinks	both splits grow and shrink

See also

• winfixwidth / winfixheight
  Mark a split as fixed (:set winfixwidth) so it resists being resized.
  Useful for sidebars but the opposite of keeping ratios.

• Manual equalize
  The keybind <C-w>= equalizes all splits on demand.

• equalalways
:set equalalways or vim.opt.equalalways = true
  Automatically equalizes splits whenever the window is resized or a new split is opened.

• focus.nvim
  Full-fledged window manager: auto-resizing, focus mode, etc.

• windows.nvim
  Automatic window sizing with focus animation.