fsouza / prettierd

prettier, as a daemon, for ludicrous formatting speed.

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Wanna run prettier in your editor, but fast? Welcome to prettierd!

This is built on top of core_d.js and integrates with prettier.

Installation guide

$ npm install -g @fsouza/prettierd

NOTE: npm comes builtin to node.

Alternatively, users may also use homebrew:

$ brew install fsouza/prettierd/prettierd

Using in the command line with node.js

The prettierd script always takes the file in the standard input and the positional parameter with the name of the file:

$ cat file.ts | prettierd file.ts

Using with TCP (moar speed)

Following the instructions from https://github.com/mantoni/core_d.js#moar-speed:

$ PORT=`cat ~/.prettierd | cut -d" " -f1`
$ TOKEN=`cat ~/.prettierd | cut -d" " -f2`
$ echo "$TOKEN $PWD file.ts" | cat - file.ts | nc localhost $PORT

Supported languages / plugins

Many parsers ship with prettierd, including JavaScript, TypeScript, GraphQL, CSS, HTML and YAML. Please notice that starting with version 0.12.0, prettierd now supports invoking the local version of prettier, so instead of adding new languages to prettierd, you should rely on that feature to use it locally with your custom version of prettier and enabled plugins.

Additional plugins

Additional plugins can be supported by installing them and adding them to the prettier configuration. For example, to use the Ruby plugin, install @prettier/plugin-ruby and add it to your configuration:

  ... other settings
  "plugins": ["@prettier/plugin-ruby"]

Then formatting Ruby files should be possible.

Provide Default Configuration

You can provide a default configuration for the prettier via setting the environment variable PRETTIERD_DEFAULT_CONFIG to the exact path of the prettier configuration file.

Local Instance

If you have locally installed prettier in your package, it will use that. Otherwise, it will use the one bundled with the package itself.

If you want to use prettierd exclusively with the locally installed prettier package, you can set the environment variable PRETTIERD_LOCAL_PRETTIER_ONLY (any truthy value will do, good examples are true or 1).

Editor integration

I use this directly with neovim's LSP client, via efm-langserver:

local prettier = {
  formatCommand = 'prettierd "${INPUT}"',
  formatStdin = true,
  env = {
    string.format('PRETTIERD_DEFAULT_CONFIG=%s', vim.fn.expand('~/.config/nvim/utils/linter-config/.prettierrc.json')),

The native TCP client can be used too, I used to do it migrated to efm-langserver for simplicity, see more details in this blog post or my configuration.

Alternatively, one can use prettierme to integrate directly with other editors.

Or, as a third option for users of Vim/Neovim plugins such as formatter.nvim or vim-codefmt, you can configure prettierd in the stdin mode. Below is an example with formatter.nvim:

  logging = false,
  filetype = {
    javascript = {
        -- prettierd
          return {
            exe = "prettierd",
            args = {vim.api.nvim_buf_get_name(0)},
            stdin = true
    -- other formatters ...

I don't know much about other editors, but feel free to send a pull requests on instructions.


prettier, as a daemon, for ludicrous formatting speed.

License:ISC License


Language:TypeScript 99.4%Language:JavaScript 0.6%