pretty-bytes vs filesize vs humanize-bytes
File Size Formatting Libraries Comparison
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What's File Size Formatting Libraries?

File size formatting libraries are essential tools in web development that help convert raw byte values into human-readable formats. These libraries provide various ways to represent file sizes, making it easier for users to understand the size of files or data being processed. They often support different units of measurement, such as bytes, kilobytes, megabytes, and gigabytes, and can format the output to include appropriate suffixes and decimal precision. By using these libraries, developers can enhance user experience by presenting file sizes in a more intuitive manner, which is crucial in applications dealing with file uploads, downloads, or storage management.

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pretty-bytes14,932,3451,13611.3 kB52 years agoMIT
filesize11,168,7931,64820.2 kB06 months agoBSD-3-Clause
humanize-bytes22,9063-09 years agoMIT
Feature Comparison: pretty-bytes vs filesize vs humanize-bytes

Formatting Options

  • pretty-bytes:

    pretty-bytes strikes a balance between simplicity and customization, allowing developers to specify the number of decimal places while still providing a clean output. It is designed to be user-friendly while offering enough options for common use cases.

  • filesize:

    filesize offers extensive formatting options, allowing developers to specify the number of decimal places, choose custom suffixes, and format sizes in a variety of ways. This flexibility makes it suitable for applications that need precise control over how file sizes are displayed.

  • humanize-bytes:

    humanize-bytes provides a straightforward approach to formatting file sizes, focusing on simplicity. It automatically selects the most appropriate unit and formats the output without additional configuration, making it ideal for quick implementations.

Performance

  • pretty-bytes:

    pretty-bytes is also designed for performance, with a focus on providing fast conversions while maintaining readability. It is efficient for most use cases, though it may not be as optimized as filesize for extensive formatting options.

  • filesize:

    filesize is optimized for performance, handling large numbers of conversions efficiently. Its design ensures that formatting operations are quick, making it suitable for applications that require frequent file size calculations without noticeable lag.

  • humanize-bytes:

    humanize-bytes is lightweight and performs well for basic conversions. Its minimalistic approach ensures that it runs efficiently, making it a good choice for applications where performance is a priority and overhead needs to be minimized.

Ease of Use

  • pretty-bytes:

    pretty-bytes is user-friendly and straightforward, providing an easy-to-understand API that allows for quick formatting of byte values. It strikes a good balance between ease of use and functionality.

  • filesize:

    filesize has a slightly steeper learning curve due to its extensive options, but once understood, it offers powerful capabilities for formatting file sizes. Its API is well-documented, making it easier for developers to implement complex formatting.

  • humanize-bytes:

    humanize-bytes is extremely easy to use, with a simple API that allows developers to convert bytes to human-readable formats with minimal code. This makes it ideal for quick implementations and for developers who prioritize simplicity.

Customization

  • pretty-bytes:

    pretty-bytes provides some customization options, such as specifying decimal precision, allowing developers to tailor the output to their needs while still keeping the implementation simple.

  • filesize:

    filesize allows for high levels of customization, enabling developers to define their own suffixes and formatting rules. This feature is particularly useful for applications that require specific formatting standards or branding.

  • humanize-bytes:

    humanize-bytes offers limited customization options, focusing instead on providing a quick and standard output. This makes it less flexible for unique formatting needs but ideal for general use cases.

Community and Support

  • pretty-bytes:

    pretty-bytes enjoys a good level of community support and is actively maintained, making it a reliable choice for developers looking for a balance between features and ease of use.

  • filesize:

    filesize has a strong community and is actively maintained, ensuring that developers can find support and resources easily. Its popularity means that it is well-tested and reliable for production use.

  • humanize-bytes:

    humanize-bytes has a smaller community but is still maintained. It is suitable for developers who prefer lightweight libraries and do not require extensive support.

How to Choose: pretty-bytes vs filesize vs humanize-bytes
  • pretty-bytes:

    Opt for pretty-bytes if you prefer a package that provides a balance between simplicity and customization. It allows for easy formatting of byte values with options for decimal precision and is particularly useful for applications that require a clean and readable output.

  • filesize:

    Choose filesize if you need a robust solution that offers extensive formatting options, including the ability to specify decimal places and custom suffixes. It is ideal for applications that require precise control over the output format.

  • humanize-bytes:

    Select humanize-bytes for a lightweight and straightforward solution that focuses on simplicity and ease of use. This package is suitable for projects where minimalism is key, and you want to quickly convert bytes to a human-readable format without additional features.

Similar Npm Packages to pretty-bytes

pretty-bytes is a simple and effective npm package that converts a number of bytes into a human-readable string format. It is particularly useful for displaying file sizes in a way that is easy for users to understand, such as converting bytes into kilobytes (KB), megabytes (MB), or gigabytes (GB) with appropriate suffixes. The package is lightweight and straightforward, making it a popular choice for developers who need to present file sizes in their applications.

While pretty-bytes is a great option, there are alternatives in the npm ecosystem that offer similar functionality:

  • bytes is a utility that provides a way to convert between byte sizes and human-readable formats. It supports both converting from a string (like "1kB" or "2MB") to bytes and from bytes to a human-readable string. The bytes package is widely used and offers a simple API, making it a solid choice for developers looking for a reliable solution for byte size conversions.
  • filesize is another popular library that formats file sizes in a human-readable way. It provides a rich set of options for customizing the output, including the ability to specify the base (binary or decimal), add suffixes, and control the number of decimal places. filesize is particularly useful for applications that require more flexibility in how file sizes are displayed, making it a great alternative for developers who need advanced formatting options.

To see how pretty-bytes compares with bytes and filesize, check out the comparison: Comparing bytes vs filesize vs pretty-bytes.

Similar Npm Packages to filesize

filesize is a popular npm package that allows developers to format file sizes in a human-readable way. It converts byte values into more understandable units such as KB, MB, GB, etc., and can also handle decimal precision and suffixes. This makes it easier for users to comprehend file sizes, especially when dealing with large data sets or file uploads in web applications. The package is lightweight and straightforward to use, making it a go-to choice for many developers.

While filesize is a great option, there are alternatives available that also provide similar functionality. Here are a couple of noteworthy alternatives:

  • bytes is a simple utility for converting between byte values and human-readable formats. It supports both converting from bytes to string representations and vice versa. The API is minimalistic, making it easy to integrate into any project. If you need a straightforward solution for byte conversions without additional overhead, bytes is a solid choice.
  • pretty-bytes is another library that focuses on formatting byte values into human-readable strings. It provides a simple API and allows for customization, such as changing the decimal precision. pretty-bytes is particularly useful for developers who want a quick and easy way to display file sizes in a more appealing format.

To see how filesize compares with bytes and pretty-bytes, check out the comparison: Comparing bytes vs filesize vs pretty-bytes.

Similar Npm Packages to humanize-bytes

humanize-bytes is a simple and effective npm package that converts byte values into human-readable formats. This library is particularly useful for applications that need to display file sizes or data transfer amounts in a way that is easy for users to understand. By converting raw byte values into more digestible units like KB, MB, or GB, humanize-bytes enhances user experience and clarity in data representation.

While humanize-bytes is a great choice for converting byte sizes, there are alternative libraries that offer similar functionality. Here are a couple of notable alternatives:

  • filesize is a popular library that provides a comprehensive solution for formatting file sizes. It supports a wide range of options, including custom suffixes, rounding, and even binary or decimal formatting. filesize is particularly useful for applications that require more control over how file sizes are displayed. Its flexibility and extensive features make it a strong alternative to humanize-bytes, especially for developers looking for a more customizable solution.
  • pretty-bytes is another lightweight library that focuses on converting byte values into human-readable formats. It provides a simple API and is designed to be easy to use, making it a good choice for projects that need quick and straightforward byte size conversions. While it may not have as many features as filesize, pretty-bytes is perfect for developers who want a minimalistic approach without sacrificing readability.

To explore how humanize-bytes compares with filesize and pretty-bytes, check out the comparison: Comparing filesize vs humanize-bytes vs pretty-bytes.

README for pretty-bytes

pretty-bytes

Convert bytes to a human readable string: 1337 → 1.34 kB

Useful for displaying file sizes for humans.

Note that it uses base-10 (e.g. kilobyte). Read about the difference between kilobyte and kibibyte.

Install

npm install pretty-bytes

Usage

import prettyBytes from 'pretty-bytes';

prettyBytes(1337);
//=> '1.34 kB'

prettyBytes(100);
//=> '100 B'

// Display with units of bits
prettyBytes(1337, {bits: true});
//=> '1.34 kbit'

// Display file size differences
prettyBytes(42, {signed: true});
//=> '+42 B'

// Localized output using German locale
prettyBytes(1337, {locale: 'de'});
//=> '1,34 kB'

API

prettyBytes(number, options?)

number

Type: number

The number to format.

options

Type: object

signed

Type: boolean
Default: false

Include plus sign for positive numbers. If the difference is exactly zero a space character will be prepended instead for better alignment.

bits

Type: boolean
Default: false

Format the number as bits instead of bytes. This can be useful when, for example, referring to bit rate.

binary

Type: boolean
Default: false

Format the number using the Binary Prefix instead of the SI Prefix. This can be useful for presenting memory amounts. However, this should not be used for presenting file sizes.

locale

Type: boolean | string
Default: false (No localization)

Important: Only the number and decimal separator are localized. The unit title is not and will not be localized.

  • If true: Localize the output using the system/browser locale.
  • If string: Expects a BCP 47 language tag (For example: en, de, …)
  • If string[]: Expects a list of BCP 47 language tags (For example: en, de, …)
minimumFractionDigits

Type: number
Default: undefined

The minimum number of fraction digits to display.

If neither minimumFractionDigits or maximumFractionDigits are set, the default behavior is to round to 3 significant digits.

import prettyBytes from 'pretty-bytes';

// Show the number with at least 3 fractional digits
prettyBytes(1900, {minimumFractionDigits: 3});
//=> '1.900 kB'

prettyBytes(1900);
//=> '1.9 kB'
maximumFractionDigits

Type: number
Default: undefined

The maximum number of fraction digits to display.

If neither minimumFractionDigits or maximumFractionDigits are set, the default behavior is to round to 3 significant digits.

import prettyBytes from 'pretty-bytes';

// Show the number with at most 1 fractional digit
prettyBytes(1920, {maximumFractionDigits: 1});
//=> '1.9 kB'

prettyBytes(1920);
//=> '1.92 kB'
space

Type: boolean
Default: true

Put a space between the number and unit.

import prettyBytes from 'pretty-bytes';

prettyBytes(1920, {space: false});
//=> '1.9kB'

prettyBytes(1920);
//=> '1.92 kB'

Related

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