Px to Rem

Converts CSS px values to rem and vice versa directly in the editor.

Install

Install the extension in Zed.

The extension will use px-to-rem-lsp from your PATH if it already exists. Otherwise it downloads the correct binary from the latest GitHub release automatically.

Usage

Place the cursor on a px or rem value and open code actions with cmd+shift+z, then choose a conversion.

If you select a range first, the extension also offers batch conversions for all matches in the selection.

Configuration

Add settings in ~/.config/zed/settings.json:

{
  "lsp": {
    "px-to-rem-lsp": {
      "initialization_options": {
        "px_per_rem": 16,
        "decimal_places": 4
      }
    }
  }
}

Option	Default	Description
px_per_rem	16	How many pixels equal 1rem
decimal_places	4	Max decimal places in the result

Supported File Types

CSS, SCSS, Less, HTML, JavaScript, TypeScript

Build

cargo build -p px-to-rem-lsp --release
cargo build --lib --target wasm32-wasip1 --release