path-browserify vs path-parse vs path-to-regexp vs resolve-path vs url-parse

Path, URL, and Routing Utilities for JavaScript Applications

Path, URL, and Routing Utilities for JavaScript Applications

These five packages handle strings that represent locations, but they operate at different layers of the stack. path-browserify and path-parse deal with file system paths, often for build tools or Node polyfills. path-to-regexp converts URL patterns into regular expressions for routing logic. resolve-path secures file path resolution against directory traversal attacks. url-parse breaks down web URLs into components without relying on the DOM. Choosing the right one depends on whether you are managing files, routes, or web addresses.

Npm Package Weekly Downloads Trend

3 Years

Github Stars Ranking

Stat Detail

Package	Downloads	Stars	Size	Issues	Publish	License
Package	Downloads	Stars	Size	Issues	Publish	License
path-browserify	0	192	-	15	6 years ago	MIT
path-parse	0	56	-	8	5 years ago	MIT
path-to-regexp	0	8,586	59.7 kB	8	a month ago	MIT
resolve-path	0	34	-	6	8 years ago	MIT
url-parse	0	1,037	63 kB	16	-	MIT

Path, URL, and Routing Utilities Compared

These five packages all handle strings that represent locations, but they solve different problems. Some manage file system paths, others handle web URLs, and one focuses on routing patterns. Using the wrong one can lead to security bugs or broken builds. Let's break down how they differ and when to use each.

🗂️ Parsing Location Strings

The first step in handling locations is breaking them into parts. Each package parses strings differently based on its domain.

path-browserify mimics Node's path module for browsers. It parses full paths into objects or joins segments.

import path from 'path-browserify';

const obj = path.parse('/home/user/file.txt');
// Returns { root, dir, base, ext, name }

path-parse is a lightweight alternative that only parses paths into objects. It does not join or resolve.

import pathParse from 'path-parse';

const obj = pathParse('/home/user/file.txt');
// Returns { root, dir, base, ext, name }

url-parse breaks down web URLs into protocol, host, and pathname.

import UrlParse from 'url-parse';

const url = new UrlParse('https://example.com/path?q=1');
// Access url.protocol, url.hostname, url.pathname

path-to-regexp parses route patterns into tokens for matching.

import { parse } from 'path-to-regexp';

const tokens = parse('/user/:id');
// Returns array of tokens describing the pattern

resolve-path does not parse for structure but resolves a path to an absolute string safely.

import resolvePath from 'resolve-path';

const absolute = resolvePath('/public', '/../secret');
// Throws error if path escapes root

🔒 Security and Resolution

Security is critical when dealing with user-supplied paths. Only one package here is built specifically for safety.

resolve-path prevents directory traversal attacks. It ensures the final path stays within a root folder.

import resolvePath from 'resolve-path';

try {
  const safe = resolvePath('/var/www', '../../etc/passwd');
} catch (e) {
  // Throws error: Path is outside root
}

path-browserify resolves paths but does not check for security boundaries.

import path from 'path-browserify';

const resolved = path.resolve('/var/www', '../../etc/passwd');
// Returns '/etc/passwd' without throwing

path-parse only parses and does not resolve or secure paths.

import pathParse from 'path-parse';

const parsed = pathParse('../../etc/passwd');
// Returns object, no security check

path-to-regexp focuses on matching patterns, not file security.

import { match } from 'path-to-regexp';

const fn = match('/user/:id');
// Returns match data, no file system access

url-parse parses URLs but does not validate file system access.

import UrlParse from 'url-parse';

const url = new UrlParse('file:///etc/passwd');
// Parses string, no security validation

🛣️ Routing and Matching

When building web servers or client-side routers, you need to match URLs to handlers.

path-to-regexp is the standard for turning path patterns into regular expressions.

import { pathToRegexp } from 'path-to-regexp';

const re = pathToRegexp('/user/:id');
// Returns regex for matching URLs

path-browserify does not support route matching.

import path from 'path-browserify';

// No matching API available

path-parse does not support route matching.

import pathParse from 'path-parse';

// No matching API available

resolve-path does not support route matching.

import resolvePath from 'resolve-path';

// No matching API available

url-parse can help extract pathnames for manual matching but lacks pattern syntax.

import UrlParse from 'url-parse';

const url = new UrlParse('/user/123');
// You must manually check url.pathname

🌐 Environment Support

Where your code runs determines which package you need.

path-browserify is designed specifically for bundlers like Webpack to polyfill Node modules in the browser.

// webpack.config.js
resolve: {
  fallback: { path: require.resolve('path-browserify') }
}

path-parse works in Node and browsers but is mostly used in build tools.

import pathParse from 'path-parse';
// Works in any JS environment

path-to-regexp is isomorphic and works in Node and browsers.

import { match } from 'path-to-regexp';
// Used in Express (Node) and React Router (Browser)

resolve-path is primarily for Node.js servers.

import resolvePath from 'resolve-path';
// Used in Koa or static servers

url-parse works in Node and browsers without DOM dependencies.

import UrlParse from 'url-parse';
// Lightweight alternative to native URL

💡 The Big Picture

These tools do not compete — they complement each other in different layers.

path-browserify and path-parse handle file system paths. Use path-browserify for full Node compatibility in bundles. Use path-parse for lightweight parsing in tools.

path-to-regexp handles routing logic. It is the go-to for matching URL patterns in servers and clients.

resolve-path handles security. It is essential for any server serving files to prevent traversal attacks.

url-parse handles web addresses. Use it when you need consistent URL parsing across environments without heavy dependencies.

Final Thought: Do not use file path tools for URLs or vice versa. Match the tool to the string type — file paths, URL strings, or route patterns — to keep your application secure and stable.

How to Choose: path-browserify vs path-parse vs path-to-regexp vs resolve-path vs url-parse

path-browserify:
Choose path-browserify when you need to use Node.js path methods in a browser environment. It is essential for bundling tools that rely on Node core modules, ensuring code using path.join or path.resolve works correctly in the browser without crashing.
path-parse:
Choose path-parse when you need a lightweight, standalone way to parse file paths into objects without importing the entire Node path module. It is ideal for low-level tooling where bundle size matters and you only need parsing logic.
path-to-regexp:
Choose path-to-regexp when you are building a router or need to match URL patterns like /user/:id. It is the industry standard for converting path strings into regular expressions for matching and compiling routes in frameworks like Express or React Router.
resolve-path:
Choose resolve-path when you need to securely resolve relative paths to absolute paths on the server. It is critical for static file servers to prevent directory traversal attacks where users might try to access files outside the intended root.
url-parse:
Choose url-parse when you need to parse URLs in environments where the native URL API is unavailable or too heavy. It offers a consistent interface across Node and browsers with a smaller footprint than full polyfills.

Popular Comparisons

path-browserify

path-parse

path-to-regexp

resolve-path

url-parse

README for path-browserify

path-browserify

The path module from Node.js for browsers

This implements the Node.js path module for environments that do not have it, like browsers.

path-browserify currently matches the Node.js 10.3 API.

Install

You usually do not have to install path-browserify yourself! If your code runs in Node.js, path is built in. If your code runs in the browser, bundlers like browserify or webpack include the path-browserify module by default.

But if none of those apply, with npm do:

npm install path-browserify

Usage

var path = require('path')

var filename = 'logo.png';
var logo = path.join('./assets/img', filename);
document.querySelector('#logo').src = logo;

API

See the Node.js path docs. path-browserify currently matches the Node.js 10.3 API. path-browserify only implements the POSIX functions, not the win32 ones.

Contributing

PRs are very welcome! The main way to contribute to path-browserify is by porting features, bugfixes and tests from Node.js. Ideally, code contributions to this module are copy-pasted from Node.js and transpiled to ES5, rather than reimplemented from scratch. Matching the Node.js code as closely as possible makes maintenance simpler when new changes land in Node.js. This module intends to provide exactly the same API as Node.js, so features that are not available in the core path module will not be accepted. Feature requests should instead be directed at nodejs/node and will be added to this module once they are implemented in Node.js.

If there is a difference in behaviour between Node.js's path module and this module, please open an issue!

License