slugify vs speakingurl vs slug vs url-slug
URL Slug Generation Libraries Comparison
1 Year
slugifyspeakingurlslugurl-slug
What's URL Slug Generation Libraries?

URL slug generation libraries are essential tools in web development that help create user-friendly, SEO-optimized URLs by transforming strings into a format suitable for web addresses. These libraries typically convert spaces and special characters into hyphens, lowercase letters, and remove unwanted characters, ensuring that the resulting slugs are both readable and compliant with web standards. By using these libraries, developers can enhance the usability and accessibility of their web applications, making it easier for users to share and navigate links.

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slugify5,634,1831,61220.9 kB422 years agoMIT
speakingurl1,318,2041,114-278 years agoBSD-3-Clause
slug275,03335734.5 kB64 months agoMIT
url-slug243,5398834 kB12 years agoMIT
Feature Comparison: slugify vs speakingurl vs slug vs url-slug

Customization

  • slugify:

    'slugify' provides extensive customization options, allowing developers to define their own replacement characters and handle various edge cases, such as special characters and accents, making it versatile for different use cases.

  • speakingurl:

    'speakingurl' emphasizes human-readable slugs and allows for customization in terms of how slugs are generated, including options for preserving certain characters and formatting, which is beneficial for content-heavy sites.

  • slug:

    The 'slug' library offers minimal customization options, focusing on a straightforward approach to slug generation. It is designed to be simple and effective, making it easy to use without complex configurations.

  • url-slug:

    'url-slug' offers a range of customization features, including support for localization, enabling developers to create slugs that cater to different languages and cultural contexts.

Performance

  • slugify:

    'slugify' is designed to handle complex strings efficiently, but it may introduce slight overhead due to its additional features. It balances performance with flexibility, making it suitable for most applications.

  • speakingurl:

    'speakingurl' focuses on generating readable slugs, which may involve more processing compared to simpler libraries. However, its performance is generally acceptable for most content-driven applications.

  • slug:

    Being a lightweight library, 'slug' is optimized for performance and is suitable for applications where speed is a priority. It has minimal overhead, ensuring fast slug generation.

  • url-slug:

    'url-slug' is efficient in generating slugs but may have a performance trade-off due to its extensive options for localization and customization, making it ideal for applications that prioritize these features.

Ease of Use

  • slugify:

    'slugify' is user-friendly and provides a straightforward API, but its additional options may require a bit of learning for new users. It strikes a good balance between ease of use and functionality.

  • speakingurl:

    'speakingurl' has a slightly more complex API due to its focus on generating human-readable slugs, but it is still accessible for developers familiar with slug generation concepts.

  • slug:

    The 'slug' library is extremely easy to use, with a simple API that allows developers to generate slugs with minimal effort. This makes it ideal for beginners or projects that require quick implementation.

  • url-slug:

    'url-slug' offers a comprehensive API that may have a steeper learning curve for beginners, but it provides powerful features for those needing advanced slug generation capabilities.

Community and Support

  • slugify:

    'slugify' benefits from a larger community and extensive documentation, making it easier to find support and examples for various use cases, which is advantageous for developers.

  • speakingurl:

    'speakingurl' has a dedicated user base and offers good documentation, though it may not be as widely adopted as some other libraries. It provides enough resources for effective implementation.

  • slug:

    'slug' has a smaller community compared to other libraries, but it is well-maintained and provides sufficient documentation for basic use cases.

  • url-slug:

    'url-slug' has a growing community and offers decent documentation, but it may not have as many resources available compared to more popular slug libraries.

Localization Support

  • slugify:

    'slugify' has limited localization capabilities, primarily focusing on English and basic character replacements, which may not suffice for multilingual applications.

  • speakingurl:

    'speakingurl' excels in generating slugs that are human-readable and can be customized for different languages, making it a strong choice for content-heavy applications with diverse audiences.

  • slug:

    The 'slug' library does not offer built-in localization support, making it less suitable for applications that require slugs in multiple languages or cultural contexts.

  • url-slug:

    'url-slug' is designed with localization in mind, providing extensive options for generating slugs that cater to various languages and cultural nuances, making it ideal for global applications.

How to Choose: slugify vs speakingurl vs slug vs url-slug
  • slugify:

    Opt for 'slugify' if you require a more comprehensive slug generation with options for customization and handling various edge cases. It is suitable for applications that demand flexibility and robustness in slug creation.

  • speakingurl:

    Select 'speakingurl' if you want to generate slugs that are not only SEO-friendly but also human-readable, making them ideal for content-heavy applications where clarity is essential. It is particularly useful for blogs and articles.

  • slug:

    Choose 'slug' if you need a straightforward and lightweight solution for generating slugs without additional dependencies. It is ideal for simple projects where performance and minimalism are priorities.

  • url-slug:

    Use 'url-slug' if you need a library that focuses on generating slugs while providing extensive options for localization and customization, making it a good choice for multilingual applications.

README for slugify

slugify

npm-version coveralls-status

var slugify = require('slugify')

slugify('some string') // some-string

// if you prefer something other than '-' as separator
slugify('some string', '_')  // some_string
  • Vanilla ES2015 JavaScript
    • If you need to use Slugify with older browsers, consider using version 1.4.7
  • No dependencies
  • Coerces foreign symbols to their English equivalent (check out the charMap for more details)
  • Works in the browser (window.slugify) and AMD/CommonJS-flavored module loaders

Options

slugify('some string', {
  replacement: '-',  // replace spaces with replacement character, defaults to `-`
  remove: undefined, // remove characters that match regex, defaults to `undefined`
  lower: false,      // convert to lower case, defaults to `false`
  strict: false,     // strip special characters except replacement, defaults to `false`
  locale: 'vi',      // language code of the locale to use
  trim: true         // trim leading and trailing replacement chars, defaults to `true`
})

Remove

For example, to remove *+~.()'"!:@ from the result slug, you can use slugify('..', {remove: /[*+~.()'"!:@]/g}).

  • If the value of remove is a regular expression, it should be a character class and only a character class. It should also use the global flag. (For example: /[*+~.()'"!:@]/g.) Otherwise, the remove option might not work as expected.
  • If the value of remove is a string, it should be a single character. Otherwise, the remove option might not work as expected.

Locales

The main charmap.json file contains all known characters and their transliteration. All new characters should be added there first. In case you stumble upon a character already set in charmap.json, but not transliterated correctly according to your language, then you have to add those characters in locales.json to override the already existing transliteration in charmap.json, but for your locale only.

You can get the correct language code of your language from here.

Extend

Out of the box slugify comes with support for a handful of Unicode symbols. For example the (radioactive) symbol is not defined in the charMap and therefore it will be stripped by default:

slugify('unicode ♥ is ☢') // unicode-love-is

However you can extend the supported symbols, or override the existing ones with your own:

slugify.extend({'☢': 'radioactive'})
slugify('unicode ♥ is ☢') // unicode-love-is-radioactive

Keep in mind that the extend method extends/overrides the default charMap for the entire process. In case you need a fresh instance of the slugify's charMap object you have to clean up the module cache first:

delete require.cache[require.resolve('slugify')]
var slugify = require('slugify')

Contribute

  1. Add chars to charmap.json
  2. Run tests npm test
  3. The tests will build the charmap in index.js and will sort the charmap.json
  4. Commit all modified files

Originally this was a vanilla javascript port of node-slug.
Note that the original slug module has been ported to vanilla javascript too.