slugify vs filenamify vs sanitize-filename
File Name and URL Slug Management Libraries Comparison
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What's File Name and URL Slug Management Libraries?

These libraries are designed to help developers create safe, valid, and user-friendly file names and URL slugs from various input strings. They ensure that the generated names are free from problematic characters that could cause issues in file systems or web URLs, enhancing both usability and security. Each library has its unique approach and features, making them suitable for different use cases in web development.

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slugify5,634,1831,61220.9 kB422 years agoMIT
filenamify4,915,1894948.29 kB52 years agoMIT
sanitize-filename2,331,004347-236 years agoWTFPL OR ISC
Feature Comparison: slugify vs filenamify vs sanitize-filename

Character Replacement

  • slugify:

    slugify transforms a string into a URL-friendly slug by converting it to lowercase and replacing spaces and special characters with hyphens, focusing on creating readable and SEO-friendly URLs.

  • filenamify:

    filenamify replaces invalid characters in a string with a specified character (default is a dash), ensuring that the resulting string is a valid file name across different operating systems and file systems.

  • sanitize-filename:

    sanitize-filename removes or replaces invalid characters from the input string, providing a clean and safe file name that adheres to the rules of the underlying file system without providing customization options for character replacement.

Customization

  • slugify:

    slugify offers some customization options, such as the ability to specify custom replacement characters for spaces and special characters, allowing for more control over the resulting slug.

  • filenamify:

    filenamify allows for customization of the character used for replacement, giving developers flexibility in how they want to handle invalid characters in file names.

  • sanitize-filename:

    sanitize-filename has limited customization options, primarily focusing on sanitizing input without providing extensive configuration for character replacement.

Use Cases

  • slugify:

    slugify is perfect for generating SEO-friendly slugs for URLs in web applications, making it essential for routing and content management systems.

  • filenamify:

    filenamify is ideal for scenarios where you need to generate valid file names from user input or other strings, such as when saving files uploaded by users in a web application.

  • sanitize-filename:

    sanitize-filename is best suited for applications that require strict validation of file names to prevent issues when saving files to disk, especially in environments with varying file system rules.

Performance

  • slugify:

    slugify is designed for speed and efficiency, quickly converting strings into slugs, which is crucial for applications that require real-time URL generation.

  • filenamify:

    filenamify is optimized for performance, handling string transformations efficiently, even for longer input strings, making it suitable for real-time applications.

  • sanitize-filename:

    sanitize-filename performs well for typical use cases, but its performance may vary based on the complexity of the input string and the number of characters to sanitize.

Community and Maintenance

  • slugify:

    slugify enjoys a robust community and is frequently updated, making it a reliable choice for developers looking for a well-supported library.

  • filenamify:

    filenamify has a growing community and is actively maintained, ensuring that it stays up-to-date with best practices and user needs.

  • sanitize-filename:

    sanitize-filename is a widely used library with a stable user base, but it may not receive frequent updates compared to newer libraries.

How to Choose: slugify vs filenamify vs sanitize-filename
  • slugify:

    Select slugify when you need to generate URL-friendly slugs from strings, particularly for use in web applications where SEO and readability are important, as it converts strings into lowercase and replaces spaces and special characters with hyphens.

  • filenamify:

    Choose filenamify if you need a library that transforms any string into a valid file name by replacing invalid characters with a specified character, making it suitable for various file systems.

  • sanitize-filename:

    Opt for sanitize-filename if you require a straightforward solution to sanitize file names by removing or replacing invalid characters, ensuring compatibility across different operating systems and environments.

Similar Npm Packages to slugify

slugify is a popular npm package used to convert strings into URL-friendly slugs. This is particularly useful for generating clean, readable URLs from titles or other text inputs, making it easier for users and search engines to understand the content of a page. The slugify function typically removes special characters, replaces spaces with hyphens, and converts the text to lowercase, resulting in a string that can be safely used in URLs. While slugify is a great choice for this task, there are several alternatives worth considering:

  • slug is a simple and efficient library for creating slugs from strings. It provides a straightforward API and focuses on generating clean slugs without unnecessary complexity. If you need a lightweight solution that handles basic slug generation, slug is an excellent option. It is easy to use and integrates well with various JavaScript projects, making it a popular choice among developers looking for a no-frills slug generation tool.

  • speakingurl is another alternative that focuses on creating human-readable slugs. It offers more customization options compared to other libraries, allowing developers to define their own character replacements and transformations. This can be particularly useful if you need to generate slugs that adhere to specific formatting rules or if you want to support multiple languages. speakingurl is ideal for projects that require more control over the slug generation process.

  • url-slug is a library designed to convert strings into URL slugs while preserving the original meaning of the text. It aims to create slugs that are both user-friendly and SEO-friendly. url-slug offers various options for customization, such as specifying delimiters and handling special characters. If your project requires slugs that are optimized for search engines and user experience, url-slug is a solid choice.

To see how slugify compares with slug, speakingurl, and url-slug, check out the comparison: Comparing slug vs slugify vs speakingurl vs url-slug.

Similar Npm Packages to filenamify

filenamify is an npm package designed to create safe and valid filenames from strings. It helps developers ensure that the filenames generated from user input or other sources do not contain any illegal characters that could cause issues in file systems. By replacing or removing problematic characters, filenamify makes it easier to manage files in a consistent manner across different operating systems.

While filenamify is a great tool for sanitizing filenames, there are other alternatives that also serve similar purposes. Here are a couple of noteworthy options:

  • sanitize-filename is a library that provides a straightforward way to sanitize filenames by removing or replacing characters that are not allowed in filenames across various operating systems. It is particularly useful for ensuring that filenames are safe to use in different environments, making it a reliable choice for developers who need to handle user-generated filenames. sanitize-filename is simple to use and can help prevent errors related to invalid characters in filenames.
  • slugify is another popular library that converts strings into URL-friendly slugs. While its primary use case is for creating slugs for URLs, it can also be adapted for generating safe filenames. slugify replaces spaces and special characters with hyphens or underscores, making it suitable for generating clean and readable filenames. If your goal is to create filenames that are both safe and SEO-friendly, slugify is a versatile option.

To see how filenamify compares with sanitize-filename and slugify, check out the comparison: Comparing filenamify vs sanitize-filename vs slugify.

Similar Npm Packages to sanitize-filename

sanitize-filename is a utility library that helps developers create safe and valid filenames by sanitizing input strings. It removes or replaces characters that are not allowed in filenames across different operating systems, ensuring that the generated filenames are safe to use. This is particularly useful when dealing with user-generated content or any input that may contain invalid characters.

While sanitize-filename is a valuable tool for filename sanitization, there are other libraries that serve similar purposes. Here are a couple of alternatives:

  • sanitize-filename (note that this is the same library mentioned above) is specifically designed to ensure that filenames are valid and safe for use across different platforms. It focuses on removing or replacing characters that could lead to issues when creating files or directories. This library is straightforward to use and can be integrated easily into any Node.js application.
  • sanitize-html is a library that focuses on sanitizing HTML content rather than filenames. It allows developers to clean up user-generated HTML by removing unwanted tags, attributes, and styles, ensuring that the output is safe for rendering in web applications. While it does not directly deal with filenames, it is essential for preventing XSS (Cross-Site Scripting) attacks and ensuring that HTML content is safe to use.

To see how sanitize-filename compares with its alternatives, check out the comparison: Comparing sanitize-filename vs sanitize-filename vs sanitize-html.

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.

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