adm-zip vs extract-zip vs unzipper
Node.js Zip File Handling Libraries
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Node.js Zip File Handling Libraries

Zip file handling libraries in Node.js provide developers with tools to create, extract, and manipulate zip files easily. These libraries simplify the process of working with compressed files, enabling efficient storage and transfer of data. They are essential for applications that need to package multiple files into a single archive or extract files from a zip archive for processing. Each library offers unique features and functionalities tailored to different use cases, making it important to choose the right one based on project requirements.

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adm-zip02,162122 kB14418 days agoMIT
extract-zip0398-556 years agoBSD-2-Clause
unzipper047356.6 kB862 years agoMIT

Feature Comparison: adm-zip vs extract-zip vs unzipper

Functionality

  • adm-zip:

    adm-zip offers both creation and extraction of zip files, allowing developers to easily package files into a zip archive or extract them. It supports adding files and directories, making it versatile for various use cases.

  • extract-zip:

    extract-zip focuses solely on extracting files from zip archives. It provides a simple API for decompressing zip files, ensuring that developers can quickly retrieve files without additional overhead.

  • unzipper:

    unzipper provides a streaming interface for extracting files, allowing for efficient handling of large zip files. It supports processing files as they are extracted, which is beneficial for applications that need to handle data incrementally.

Performance

  • adm-zip:

    adm-zip operates synchronously, which can lead to performance issues when handling large files or multiple files at once. However, for smaller tasks, it performs adequately without the need for complex setups.

  • extract-zip:

    extract-zip is optimized for performance during extraction, ensuring that it can handle large zip files efficiently. Its focus on extraction allows for faster processing times compared to libraries that also handle creation.

  • unzipper:

    unzipper excels in performance when dealing with large zip files due to its streaming capabilities. It minimizes memory usage by processing files on-the-fly, making it suitable for applications where performance is critical.

Ease of Use

  • adm-zip:

    adm-zip is known for its straightforward API, making it easy for developers to get started quickly. Its synchronous nature simplifies the coding process, especially for those new to zip file handling.

  • extract-zip:

    extract-zip offers a simple and intuitive API focused solely on extraction, making it easy to integrate into projects without unnecessary complexity.

  • unzipper:

    unzipper has a steeper learning curve due to its streaming model, but it provides powerful features for advanced users. Developers may need to familiarize themselves with streams to fully leverage its capabilities.

Error Handling

  • adm-zip:

    adm-zip provides basic error handling mechanisms, but developers need to implement additional checks for edge cases, such as corrupted zip files or unsupported formats.

  • extract-zip:

    extract-zip includes robust error handling specifically for extraction processes, allowing developers to catch and manage errors related to file extraction effectively.

  • unzipper:

    unzipper offers comprehensive error handling for streaming operations, enabling developers to manage errors at various stages of the extraction process, which is crucial for maintaining application stability.

Community and Support

  • adm-zip:

    adm-zip has a moderate level of community support, with documentation available but fewer resources compared to more popular libraries. Users may find community forums helpful for troubleshooting.

  • extract-zip:

    extract-zip has a smaller community but provides clear documentation, making it easy to find answers for common issues. However, it may lack extensive community resources.

  • unzipper:

    unzipper has a growing community and offers good documentation, along with examples. Its streaming capabilities have attracted a user base that values performance, leading to more shared knowledge and resources.

How to Choose: adm-zip vs extract-zip vs unzipper

  • adm-zip:

    Choose adm-zip if you need a straightforward API for both creating and extracting zip files. It is particularly useful for applications that require synchronous operations and ease of use, making it suitable for quick tasks and smaller projects.

  • extract-zip:

    Select extract-zip if your primary requirement is to extract files from zip archives with a focus on simplicity and performance. It is designed specifically for extraction, making it a lightweight option for projects that do not require zip file creation.

  • unzipper:

    Opt for unzipper if you need a streaming approach to handle large zip files or require more advanced features like handling zip entries individually. It is ideal for applications that need to process files on-the-fly without loading the entire archive into memory.

Similar Npm Packages to adm-zip

adm-zip is a popular npm package for handling ZIP files in Node.js applications. It provides a simple and intuitive API for creating, reading, and modifying ZIP files, making it a go-to choice for developers who need to work with compressed files. With features like adding files, extracting content, and managing file metadata, adm-zip is a versatile tool for file manipulation.

While adm-zip is a solid choice, there are several alternatives available in the npm ecosystem that also provide ZIP file handling capabilities. Here are a few notable options:

  • jszip is a widely-used library for creating and reading ZIP files in JavaScript. It works both in the browser and in Node.js, making it a flexible option for developers who need to handle ZIP files in different environments. jszip supports a wide range of features, including compression options and streaming, which makes it suitable for more complex use cases. If you need a library that can handle ZIP files in both client-side and server-side applications, jszip is an excellent choice.

  • node-zip is another library for creating and reading ZIP files in Node.js. It is designed to be lightweight and easy to use, providing basic functionality for ZIP file manipulation. While it may not offer as many features as adm-zip or jszip, node-zip can be a good option for simpler use cases where a minimalistic approach is preferred.

  • zip-stream is a streaming ZIP file generator for Node.js. It allows you to create ZIP files in a memory-efficient manner by streaming data instead of loading everything into memory at once. This makes zip-stream particularly useful for handling large files or when working in environments with limited memory. If your application requires efficient ZIP file creation without the overhead of loading entire files into memory, zip-stream is a great option.

To compare these packages, check out the following link: Comparing adm-zip vs jszip vs node-zip vs zip-stream.

Similar Npm Packages to extract-zip

extract-zip is a Node.js package that provides a simple and efficient way to extract ZIP files. It allows developers to easily handle ZIP file extraction without the need for complex configurations or dependencies. With its straightforward API, extract-zip is particularly useful for applications that require quick and reliable extraction of ZIP archives.

While extract-zip is a great choice for ZIP file extraction, there are other libraries available that offer similar functionality. Here are a couple of alternatives:

  • adm-zip is a popular library for handling ZIP files in Node.js. It provides a comprehensive set of features for creating, reading, and extracting ZIP files. adm-zip supports both synchronous and asynchronous operations, making it versatile for various use cases. If you need more than just extraction—such as creating ZIP files or manipulating their contents—adm-zip is a robust option that offers a rich set of functionalities.
  • unzipper is another library that specializes in extracting ZIP files in a streaming manner. It is designed for performance and efficiency, allowing developers to process large ZIP files without loading them entirely into memory. unzipper is particularly useful for applications that need to handle large datasets or files, as it streams the extraction process, making it suitable for performance-sensitive scenarios.

To see how extract-zip compares with adm-zip and unzipper, check out the comparison: Comparing adm-zip vs extract-zip vs unzipper.

Similar Npm Packages to unzipper

unzipper is a popular npm package for unzipping files in Node.js applications. It provides a simple and efficient way to extract files from ZIP archives, allowing developers to handle compressed files easily. While unzipper is a robust solution for file extraction, there are several alternatives available in the npm ecosystem that also provide similar functionality. Here are a few noteworthy alternatives:

  • adm-zip is a pure JavaScript implementation for reading and writing ZIP files. It offers a straightforward API for creating, extracting, and modifying ZIP archives. adm-zip is particularly useful for applications that require both reading and writing ZIP files, making it a versatile choice for developers looking for a comprehensive solution. Its ease of use and performance make it a popular option for handling ZIP files in Node.js applications.

  • extract-zip is a lightweight and straightforward package specifically designed for extracting ZIP files. It focuses solely on the extraction process, providing a simple API to unzip files with minimal overhead. If your primary requirement is to extract files from ZIP archives without the need for additional features, extract-zip is an excellent choice. Its simplicity and efficiency make it ideal for quick extraction tasks.

  • node-unzip-2 is another alternative for unzipping files in Node.js. It is a fork of the original node-unzip package and provides a streaming interface for extracting files from ZIP archives. This makes it suitable for handling large ZIP files without consuming excessive memory. If you need to process ZIP files in a streaming manner, node-unzip-2 is a solid option that allows for efficient file extraction.

To see how unzipper compares with adm-zip, extract-zip, and node-unzip-2, check out the comparison: Comparing adm-zip vs extract-zip vs node-unzip-2 vs unzipper.

README for adm-zip

ADM-ZIP for NodeJS

ADM-ZIP is a pure JavaScript implementation for zip data compression for NodeJS.

Build Status

Installation

With npm do:

$ npm install adm-zip

Electron file system support described below.

What is it good for?

The library allows you to:

  • decompress zip files directly to disk or in memory buffers
  • compress files and store them to disk in .zip format or in compressed buffers
  • update content of/add new/delete files from an existing .zip

Dependencies

There are no other nodeJS libraries that ADM-ZIP is dependent of

Examples

Basic usage

var AdmZip = require("adm-zip");

// reading archives
var zip = new AdmZip("./my_file.zip");
var password = "1234567890";
var zipEntries = zip.getEntries(); // an array of ZipEntry records - add password parameter if entries are password protected

zipEntries.forEach(function (zipEntry) {
    console.log(zipEntry.toString()); // outputs zip entries information
    if (zipEntry.entryName == "my_file.txt") {
        console.log(zipEntry.getData().toString("utf8"));
    }
});
// outputs the content of some_folder/my_file.txt
console.log(zip.readAsText("some_folder/my_file.txt"));
// extracts the specified file to the specified location
zip.extractEntryTo(/*entry name*/ "some_folder/my_file.txt", /*target path*/ "/home/me/tempfolder", /*maintainEntryPath*/ false, /*overwrite*/ true);
// extracts everything
zip.extractAllTo(/*target path*/ "/home/me/zipcontent/", /*overwrite*/ true);

// creating archives
var zip = new AdmZip();

// add file directly
var content = "inner content of the file";
zip.addFile("test.txt", Buffer.from(content, "utf8"), "entry comment goes here");
// add local file
zip.addLocalFile("/home/me/some_picture.png");
// get everything as a buffer
var willSendthis = zip.toBuffer();
// or write everything to disk
zip.writeZip(/*target file name*/ "/home/me/files.zip");

// ... more examples in the wiki

For more detailed information please check out the wiki.

Electron original-fs

ADM-ZIP has supported electron original-fs for years without any user interractions but it causes problem with bundlers like rollup etc. For continuing support original-fs or any other custom file system module. There is possible specify your module by fs option in ADM-ZIP constructor.

Example:

const AdmZip = require("adm-zip");
const OriginalFs = require("original-fs");

// reading archives
const zip = new AdmZip("./my_file.zip", { fs: OriginalFs });
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