html-prettify

library1.0.7jsnpmunverified

A simple, lightweight HTML prettifier with TypeScript definitions. Version 1.0.7 is the latest stable release. It takes HTML markup and indents it based on configurable character and count options. Differentiators: minimalistic, no dependencies, provides Vue-style template support (v-for, v-html). Alternative to more complex formatters like prettier.

devops

npm install html-prettify

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · HTML-PRETTIFY

html-prettify

devopsjavascriptv1.0.7

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ import prettify from 'html-prettify'

✗ const prettify = require('html-prettify')

Package is ESM-only; use default import. CommonJS require will fail.

prettify

✓ import { prettify } from 'html-prettify'

✗ const { prettify } = require('html-prettify')

Named export also available. CommonJS destructuring fails.

prettify function

✓ import pt from 'html-prettify'; pt(html, { char: 'tab', count: 4 })

Options object with 'char' (space or tab) and 'count' (number) to control indentation.

Demonstrates importing the default function and formatting a simple HTML string with space indentation.

import prettify from 'html-prettify'; const html = '<div><p>Hello</p></div>'; const result = prettify(html, { char: 'space', count: 2 }); console.log(result); // '<div>\n <p>Hello</p>\n</div>'

Debug

Known issues

breakingVersion 1.0.0 dropped CommonJS support; package is ESM-only.

fix

Use import instead of require(). If you must use CommonJS, consider dynamic import() or use an older version (<=0.0.x).

affects: >=1.0.0

gotchaThe 'char' option expects 'space' or 'tab' literally; other values may cause unexpected behavior or fallback to default.

fix

Always use exactly 'space' or 'tab' for the char option.

affects: >=1.0.0

gotchaVue directives like v-for with spaces may not be preserved exactly; some formatting removes extra whitespace inside attributes.

fix

Check output if you rely on specific attribute spacing; consider using a Vue-specific formatter if needed.

affects: >=1.0.0

Errors

Common errors & fixes

Error [ERR_REQUIRE_ESM]: require() of ES Module

Using CommonJS require() with an ESM-only package.

fix

Use import or set type: 'module' in package.json if using Node.js, or use dynamic import().

TypeError: prettify is not a function

Importing named export as default incorrectly, or using wrong import syntax.

fix

Use default import: import prettify from 'html-prettify'.

Upgrade

Version history

1.0.7latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

4 hits · last 30 days

node

Resources

githubhttps://github.com/Dmc0125/html-prettify ↗

packagehtml-prettify ↗

homepagehttps://github.com/Dmc0125/html-prettify#readme ↗