# Ignore all HTML files:
**/*.html
```

It’s recommended to have a `.prettierignore` in your project! This way you can run `prettier --write .` to make sure that everything is formatted (without mangling files you don’t want, or choking on generated files). And – your editor will know which files _not_ to format!

By default prettier ignores files in version control systems directories (".git", ".jj", ".sl", ".svn" and ".hg") and `node_modules` (unless the [`--with-node-modules` CLI option](cli.md#--with-node-modules) is specified). Prettier will also follow rules specified in the ".gitignore" file if it exists in the same directory from which it is run.

So by default it will be

```text
**/.git
**/.svn
**/.hg
**/node_modules
```

and

```text
**/.git
**/.svn
**/.hg
```

if [`--with-node-modules` CLI option](cli.md#--with-node-modules) provided

(See also the [`--ignore-path` CLI option](cli.md#--ignore-path).)

## JavaScript

A JavaScript comment of `// prettier-ignore` will exclude the next node in the abstract syntax tree from formatting.

For example:

<!-- prettier-ignore -->
```js
matrix(
  1, 0, 0,
  0, 1, 0,
  0, 0, 1
)

// prettier-ignore
matrix(
  1, 0, 0,
  0, 1, 0,
  0, 0, 1
)
```

will be transformed to:

```js
matrix(1, 0, 0, 0, 1, 0, 0, 0, 1);

// prettier-ignore
matrix(
  1, 0, 0,
  0, 1, 0,
  0, 0, 1
)
```

## JSX

```jsx
<div>
  {/* prettier-ignore */}
  <span     ugly  format=''   />
</div>
```

## HTML

```html
<!-- prettier-ignore -->
<div         class="x"       >hello world</div            >

<!-- prettier-ignore-attribute -->
<div
  (mousedown)="       onStart    (    )         "
  (mouseup)="         onEnd      (    )         "
></div>

<!-- prettier-ignore-attribute (mouseup) -->
<div
  (mousedown)="onStart()"
  (mouseup)="         onEnd      (    )         "
></div>
```

## CSS

```css
/* prettier-ignore */
.my    ugly rule
{

}
```

## Markdown

```markdown
<!-- prettier-ignore -->
Do   not    format   this
```

### Range Ignore

_available in v1.12.0+_

This type of ignore is only allowed to be used in top-level and aimed to disable formatting for auto-generated content, e.g. [`all-contributors`](https://github.com/kentcdodds/all-contributors), [`markdown-toc`](https://github.com/jonschlinkert/markdown-toc), etc.

```markdown
<!-- prettier-ignore-start -->
<!-- SOMETHING AUTO-GENERATED BY TOOLS - START -->

| MY | AWESOME | AUTO-GENERATED | TABLE |
|-|-|-|-|
| a | b | c | d |

<!-- SOMETHING AUTO-GENERATED BY TOOLS - END -->
<!-- prettier-ignore-end -->
```

**Important:** You must have a blank line before `<!-- prettier-ignore-start -->` and `<!-- prettier-ignore-end -->` for Prettier to recognize the comments.

## YAML

To ignore a part of a YAML file, `# prettier-ignore` should be placed on the line immediately above the ignored node:

```yaml