express-fileupload vs busboy vs form-data vs formidable vs multer
File Upload Middleware for Node.js
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File Upload Middleware for Node.js

These npm packages are designed to handle file uploads in Node.js applications. They provide various functionalities for parsing incoming multipart/form-data requests, which is essential for handling file uploads from clients. Each package has its own strengths and weaknesses, making them suitable for different scenarios based on project requirements, performance needs, and ease of use. Understanding these differences is crucial for selecting the right package for your application.

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express-fileupload502,4741,561119 kB248 months agoMIT
busboy02,996124 kB37--
form-data02,35681.2 kB1373 months agoMIT
formidable0-204 kB-10 months agoMIT
multer012,00429.5 kB2477 months agoMIT

Feature Comparison: express-fileupload vs busboy vs form-data vs formidable vs multer

Ease of Use

  • express-fileupload:

    Express-fileupload is designed for simplicity and ease of use, making it ideal for developers who want to quickly implement file uploads without extensive configuration.

  • busboy:

    Busboy is a low-level streaming parser that requires more setup and understanding of streams. It may not be the best choice for beginners or those looking for a quick implementation.

  • form-data:

    Form-data is primarily used for sending files to external services rather than handling uploads, so it does not provide an easy interface for incoming file uploads.

  • formidable:

    Formidable offers a straightforward API for handling file uploads, but it may require a bit more configuration compared to express-fileupload.

  • multer:

    Multer is easy to set up and integrates seamlessly with Express.js, providing a user-friendly experience for handling file uploads.

Performance

  • express-fileupload:

    Express-fileupload is suitable for small to medium files, but may not perform as well as Busboy for larger uploads due to its in-memory processing.

  • busboy:

    Busboy is highly performant due to its streaming nature, allowing for efficient handling of large files without consuming excessive memory.

  • form-data:

    Form-data is not used for handling incoming uploads, so performance considerations are more relevant when sending files to external services.

  • formidable:

    Formidable performs well for moderate file sizes but can become slower with very large files due to its processing model.

  • multer:

    Multer is efficient for handling file uploads, especially when configured with disk storage, but may require optimization for very large files.

File Size Limitations

  • express-fileupload:

    Express-fileupload also supports file size limits, but it may not be as flexible as Busboy in terms of configuration.

  • busboy:

    Busboy allows you to set file size limits easily, making it suitable for applications that need to enforce strict upload limits.

  • form-data:

    Form-data does not impose file size limits as it is used for sending files, not receiving them.

  • formidable:

    Formidable allows you to set file size limits and provides feedback on upload progress, making it a good choice for applications that need to manage large uploads.

  • multer:

    Multer allows you to set file size limits and provides options for handling errors when limits are exceeded.

Streaming Support

  • express-fileupload:

    Express-fileupload does not support streaming; it buffers the entire file in memory before processing, which may lead to performance issues with large files.

  • busboy:

    Busboy excels in streaming file uploads, allowing files to be processed as they are received, which is ideal for large files.

  • form-data:

    Form-data is designed for constructing requests, not for streaming uploads, so it lacks this feature.

  • formidable:

    Formidable supports streaming uploads, allowing for efficient processing of files as they are received, similar to Busboy.

  • multer:

    Multer does not support streaming in the same way as Busboy, as it buffers files in memory or on disk before processing.

Integration with Express

  • express-fileupload:

    Express-fileupload is specifically designed for Express, making it the easiest to integrate with minimal configuration.

  • busboy:

    Busboy can be integrated with Express, but it requires more manual setup compared to other packages.

  • form-data:

    Form-data is not designed for Express integration, as it is used for sending requests rather than handling them.

  • formidable:

    Formidable can be integrated with Express, but it requires additional setup compared to express-fileupload.

  • multer:

    Multer is built for Express and provides a straightforward middleware approach, making it very easy to use in Express applications.

How to Choose: express-fileupload vs busboy vs form-data vs formidable vs multer

  • express-fileupload:

    Select express-fileupload for a simple and easy-to-use middleware that integrates seamlessly with Express.js. It is suitable for small to medium-sized applications where ease of setup and use is prioritized over advanced features.

  • busboy:

    Choose Busboy if you need a lightweight and efficient solution for handling file uploads with a focus on performance. It streams the files directly to the filesystem or memory, which is ideal for applications that require high throughput and low memory usage.

  • form-data:

    Use form-data if you need to construct and send multipart/form-data requests from Node.js. It is particularly useful for scenarios where you need to upload files to an external API or service, rather than handling incoming uploads.

  • formidable:

    Opt for Formidable if you require robust parsing capabilities and support for file uploads. It handles file uploads well and provides a rich set of features, including progress events and file size limits, making it suitable for more complex applications.

  • multer:

    Choose Multer if you are looking for a middleware that integrates directly with Express.js and provides a simple way to handle file uploads. It offers various storage options and is particularly useful for applications that need to manage uploaded files efficiently.

Similar Npm Packages to express-fileupload

express-fileupload is a middleware for handling file uploads in Node.js applications using the Express framework. It simplifies the process of uploading files by providing an easy-to-use API that allows developers to handle file uploads seamlessly. With support for various file types and customizable options, express-fileupload is a popular choice for applications that require file upload functionality.

However, there are several alternatives available that also provide file upload capabilities in Express applications. Here are a few notable ones:

  • busboy is a robust and efficient middleware for parsing incoming form data, especially file uploads. It is designed to handle large files and streams efficiently, making it a great choice for applications that require high performance. busboy is particularly useful when you need to process file uploads in a more granular way, as it provides a low-level API for handling multipart form data.
  • connect-multiparty is another middleware for handling multipart form data in Node.js applications. It is built on top of the multiparty library and provides a simple interface for parsing incoming file uploads. While it is effective for basic file upload scenarios, it may not offer as many features as some of the other alternatives.
  • express-formidable is a middleware that simplifies file uploads and form parsing in Express applications. It is built on top of the formidable library and provides a straightforward API for handling file uploads and form data. express-formidable is a good choice if you want an easy-to-use solution that integrates well with Express.
  • formidable is a powerful library for parsing form data, especially file uploads. It provides a comprehensive set of features for handling file uploads, including support for streaming and handling large files. While it can be used independently, it is often integrated with Express to provide a complete solution for file uploads.
  • multer is a popular middleware for handling multipart/form-data, which is primarily used for uploading files. It is designed to work seamlessly with Express and provides a simple and flexible API for handling file uploads. multer is widely used in the Node.js community and is an excellent choice if you need a well-documented and feature-rich solution for file uploads.

To see how express-fileupload compares with these alternatives, check out the comparison: Comparing busboy vs connect-multiparty vs express-fileupload vs express-formidable vs formidable vs multer.

Similar Npm Packages to busboy

busboy is a Node.js library that provides a fast and efficient way to parse incoming form data, especially file uploads. It is designed to handle multipart/form-data requests, which are commonly used for file uploads in web applications. Busboy streams the data, allowing for efficient processing without consuming large amounts of memory, making it ideal for handling large files or high volumes of uploads.

While busboy is a powerful tool for handling file uploads, there are several alternatives available in the Node.js ecosystem that offer similar functionalities. Here are a few notable options:

  • connect-busboy is a middleware that integrates busboy with Connect, a popular framework for building web applications in Node.js. It allows you to easily handle file uploads in your Connect-based applications. If you're already using Connect and want to leverage busboy's capabilities, connect-busboy provides a straightforward way to do so.

  • express-fileupload is a simple and lightweight middleware for handling file uploads in Express applications. It allows you to easily manage file uploads with minimal setup. If you're looking for a quick and easy solution for file uploads in an Express app, express-fileupload is a great choice.

  • formidable is another popular library for parsing form data, including file uploads, in Node.js applications. It provides a robust set of features for handling multipart/form-data requests and is known for its reliability and ease of use. Formidable is a solid option if you need a comprehensive solution for handling form submissions and file uploads.

  • multer is a middleware for handling multipart/form-data, primarily used for uploading files in Express applications. It is easy to set up and provides various configuration options for managing file uploads, such as file size limits and storage options. If you're working with Express and need a dedicated solution for file uploads, multer is a popular and well-supported choice.

For a detailed comparison of these packages, check out the following link: Comparing busboy vs connect-busboy vs express-fileupload vs formidable vs multer.

Similar Npm Packages to form-data

form-data is a popular npm package that allows developers to create readable streams for form data in Node.js applications. It is particularly useful for handling file uploads and sending data in multipart/form-data format, which is commonly used in web forms. While form-data is a robust solution for managing form submissions, there are several alternatives available in the Node.js ecosystem that serve similar purposes. Here are a few noteworthy alternatives:

  • busboy is a lightweight and efficient library for parsing incoming form data, especially file uploads. It is designed to handle multipart/form-data and can process large files without consuming excessive memory. Busboy is particularly useful for applications that require high performance and low overhead, making it a great choice for handling file uploads in Node.js.

  • connect-busboy is a middleware for Connect and Express applications that integrates busboy for handling multipart/form-data. It simplifies the process of file uploads by providing a straightforward API that works seamlessly with the Express framework. If you're using Express and want to leverage busboy's capabilities, connect-busboy is an excellent option.

  • express-fileupload is a simple and easy-to-use middleware for handling file uploads in Express applications. It allows you to upload files with minimal configuration and provides a straightforward API for accessing uploaded files. If you're looking for a quick and hassle-free way to handle file uploads in an Express app, express-fileupload is a solid choice.

  • formidable is another popular library for parsing form data in Node.js applications. It supports multipart/form-data and can handle file uploads efficiently. Formidable is known for its flexibility and ease of use, making it a great option for developers who need to manage form submissions and file uploads in their applications.

  • koa-body is a middleware for Koa applications that handles multipart/form-data and JSON requests. It is designed to work seamlessly with Koa's async/await syntax, providing a modern approach to handling form submissions and file uploads. If you're using Koa and need a middleware solution for handling form data, koa-body is an excellent choice.

  • multer is a middleware for handling multipart/form-data in Express applications. It is specifically designed for handling file uploads and provides a simple API for managing uploaded files. Multer is highly configurable and supports various storage options, making it a popular choice for developers who need to handle file uploads in their Express applications.

To see how these packages compare, check out the comparison link: Comparing busboy, connect-busboy, express-fileupload, form-data, formidable, koa-body, multer.

Similar Npm Packages to formidable

formidable is a popular Node.js library for parsing form data, especially file uploads. It is designed to handle multipart/form-data, which is commonly used for uploading files via HTML forms. Formidable provides a simple and efficient way to process incoming form data, making it a go-to choice for developers building applications that require file uploads or form submissions. Its robust features include support for streaming uploads, progress tracking, and handling various form data types.

While formidable is a powerful option, there are several alternatives available for handling file uploads and form data in Node.js applications. Here are a few noteworthy alternatives:

  • busboy is a lightweight and fast streaming parser for multipart/form-data. It is designed to handle file uploads efficiently by processing data as it arrives, which can be beneficial for large files. Busboy is a great choice if you need a minimalistic solution that focuses on performance and low overhead, especially for applications that require handling file uploads without the additional features that come with more comprehensive libraries.

  • express-fileupload is a simple middleware for handling file uploads in Express applications. It allows you to easily add file upload capabilities to your Express server with minimal configuration. If you are already using Express and want a straightforward way to handle file uploads, express-fileupload is a convenient option that integrates seamlessly with your existing Express setup.

  • form-data is a library that allows you to create and manipulate form data in a way that is compatible with the multipart/form-data encoding. It is particularly useful for sending form data via HTTP requests, such as when uploading files to a server. If you need to construct and send form data programmatically, form-data is a solid choice that provides a simple API for building and managing form data.

  • multer is a middleware for handling multipart/form-data in Express applications, specifically for file uploads. It provides a simple and flexible way to handle file uploads with various storage options, including in-memory storage and disk storage. Multer is an excellent choice if you are looking for a comprehensive solution that integrates well with Express and offers advanced features for managing file uploads.

To explore how formidable compares with busboy, express-fileupload, form-data, and multer, check out the comparison: Comparing busboy vs express-fileupload vs form-data vs formidable vs multer.

Similar Npm Packages to multer

multer is a middleware for handling multipart/form-data, which is primarily used for uploading files in Node.js applications, particularly those built with Express.js. It simplifies the process of file uploads by providing a straightforward API for handling file storage, validation, and retrieval. With multer, developers can easily manage file uploads and integrate them into their applications, making it a popular choice for projects that require file handling capabilities.

While multer is a robust solution for file uploads, there are several alternatives available that also cater to file handling needs in Node.js applications. Here are a few noteworthy alternatives:

  • busboy is a lightweight and efficient library for parsing multipart/form-data. It is designed for high-performance file uploads and provides a streaming interface, making it suitable for handling large files. Busboy is particularly useful when you need fine-grained control over file uploads and want to avoid the overhead of more feature-rich libraries like multer. Its simplicity and performance make it a solid choice for applications that require efficient file parsing without additional complexity.

  • express-fileupload is a simple and easy-to-use middleware for handling file uploads in Express applications. It allows developers to quickly add file upload capabilities with minimal configuration. Express-fileupload supports various file upload features, including file size limits and file type validation, making it a convenient option for projects that need basic file upload functionality without extensive setup.

  • formidable is another popular library for parsing form data, especially file uploads in Node.js applications. It provides a comprehensive set of features for handling file uploads, including support for streaming uploads, file renaming, and progress tracking. Formidable is well-suited for applications that require more advanced file handling capabilities and want to manage file uploads with a robust and flexible API.

To see how multer compares with busboy, express-fileupload, and formidable, check out the comparison: Comparing busboy vs express-fileupload vs formidable vs multer.

README for express-fileupload

express-fileupload

Simple express middleware for uploading files.

npm downloads per month CircleCI Coverage Status

Help us Improve express-fileupload

This package is still very much supported and maintained. But the more help the better. If you're interested any of the following:

  • Ticket and PR triage
  • Feature scoping and implementation
  • Maintenance (upgrading packages, fixing security vulnerabilities, etc)

...please contact richardgirges '-at-' gmail.com

Install

# With NPM
npm i express-fileupload

# With Yarn
yarn add express-fileupload

Usage

When you upload a file, the file will be accessible from req.files.

Example:

  • You're uploading a file called car.jpg
  • Your input's name field is foo: <input name="foo" type="file" />
  • In your express server request, you can access your uploaded file from req.files.foo:
app.post('/upload', function(req, res) {
  console.log(req.files.foo); // the uploaded file object
});

The req.files.foo object will contain the following:

  • req.files.foo.name: "car.jpg"
  • req.files.foo.mv: A function to move the file elsewhere on your server. Can take a callback or return a promise.
  • req.files.foo.mimetype: The mimetype of your file
  • req.files.foo.data: A buffer representation of your file, returns empty buffer in case useTempFiles option was set to true.
  • req.files.foo.tempFilePath: A path to the temporary file in case useTempFiles option was set to true.
  • req.files.foo.truncated: A boolean that represents if the file is over the size limit
  • req.files.foo.size: Uploaded size in bytes
  • req.files.foo.md5: MD5 checksum of the uploaded file

Notes about breaking changes with MD5 handling:

  • Before 1.0.0, md5 is an MD5 checksum of the uploaded file.
  • From 1.0.0 until 1.1.1, md5 is a function to compute an MD5 hash (Read about it here.).
  • From 1.1.1 until 1.5.1, md5 is reverted back to MD5 checksum value and also added full MD5 support in case you are using temporary files.
  • From 1.5.1 onward, md5 still holds the checksum value, but the checksum is generated with the provided hashAlgorithm option. The property name remains md5 for backwards compatibility.

Examples

Using Busboy Options

Pass in Busboy options directly to the express-fileupload middleware. Check out the Busboy documentation here.

app.use(fileUpload({
  limits: { fileSize: 50 * 1024 * 1024 },
}));

Using useTempFile Options

Use temp files instead of memory for managing the upload process.

// Note that this option available for versions 1.0.0 and newer. 
app.use(fileUpload({
    useTempFiles : true,
    tempFileDir : '/tmp/'
}));

Using debug option

You can set debug option to true to see some logging about upload process. In this case middleware uses console.log and adds Express-file-upload prefix for outputs. You can set a custom logger having .log() method to the logger option.

It will show you whether the request is invalid and also common events triggered during upload. That can be really useful for troubleshooting and we recommend attaching debug output to each issue on Github.

Output example:

Express-file-upload: Temporary file path is /node/express-fileupload/test/temp/tmp-16-1570084843942
Express-file-upload: New upload started testFile->car.png, bytes:0
Express-file-upload: Uploading testFile->car.png, bytes:21232...
Express-file-upload: Uploading testFile->car.png, bytes:86768...
Express-file-upload: Upload timeout testFile->car.png, bytes:86768
Express-file-upload: Cleaning up temporary file /node/express-fileupload/test/temp/tmp-16-1570084843942...

Description:

  • Temporary file path is... says that useTempfiles was set to true and also shows you temp file name and path.
  • New upload started testFile->car.png says that new upload started with field testFile and file name car.png.
  • Uploading testFile->car.png, bytes:21232... shows current progress for each new data chunk.
  • Upload timeout means that no data came during uploadTimeout.
  • Cleaning up temporary file Here finaly we see cleaning up of the temporary file because of upload timeout reached.

Available Options

Pass in non-Busboy options directly to the middleware. These are express-fileupload specific options.

OptionAcceptable ValuesDetails
createParentPath
  • false (default)
  • true
Automatically creates the directory path specified in .mv(filePathName)
uriDecodeFileNames
  • false (default)
  • true
Applies uri decoding to file names if set true.
safeFileNames
  • false (default)
  • true
  • regex
Strips characters from the upload's filename. You can use custom regex to determine what to strip. If set to true, non-alphanumeric characters except dashes and underscores will be stripped. This option is off by default.

Example #1 (strip slashes from file names): app.use(fileUpload({ safeFileNames: /\\/g }))
Example #2: app.use(fileUpload({ safeFileNames: true }))
preserveExtension
  • false (default)
  • true
  • Number
Preserves filename extension when using safeFileNames option. If set to true, will default to an extension length of 3. If set to Number, this will be the max allowable extension length. If an extension is smaller than the extension length, it remains untouched. If the extension is longer, it is shifted.

Example #1 (true):
app.use(fileUpload({ safeFileNames: true, preserveExtension: true }));
myFileName.ext --> myFileName.ext

Example #2 (max extension length 2, extension shifted):
app.use(fileUpload({ safeFileNames: true, preserveExtension: 2 }));
myFileName.ext --> myFileNamee.xt
abortOnLimit
  • false (default)
  • true
Returns a HTTP 413 when the file is bigger than the size limit if true. Otherwise, it will add a truncated = true to the resulting file structure.
responseOnLimit
  • 'File size limit has been reached' (default)
  • String
Response which will be send to client if file size limit exceeded when abortOnLimit set to true.
limitHandler
  • false (default)
  • function(req, res, next)
User defined limit handler which will be invoked if the file is bigger than configured limits.
useTempFiles
  • false (default)
  • true
By default this module uploads files into RAM. Setting this option to True turns on using temporary files instead of utilising RAM. This avoids memory overflow issues when uploading large files or in case of uploading lots of files at same time.
tempFileDir
  • String (path)
Path to store temporary files.
Used along with the useTempFiles option. By default this module uses 'tmp' folder in the current working directory.
You can use trailing slash, but it is not necessary.
tempFilePermissions
  • 644 (default)
  • Integer
Permissions applied to temporary files.
Used along with the useTempFiles option. By default this module uses '644' permissions.
You should use this option if using shared hosting - to protect user data from being accessed by other users on the server.
parseNested
  • false (default)
  • true
By default, req.body and req.files are flattened like this: {'name': 'John', 'hobbies[0]': 'Cinema', 'hobbies[1]': 'Bike'}

When this option is enabled they are parsed in order to be nested like this: {'name': 'John', 'hobbies': ['Cinema', 'Bike']}
debug
  • false (default)
  • true
Turn on/off upload process logging. Can be useful for troubleshooting.
logger
  • console (default)
  • {log: function(msg: string)}
Customizable logger to write debug messages to. Console is default.
uploadTimeout
  • 60000 (default)
  • Integer
This defines how long to wait for data before aborting. Set to 0 if you want to turn off timeout checks.
hashAlgorithm
  • md5 (default)
  • String
Allows the usage of alternative hashing algorithms for file integrity checks. This option must be an algorithm that is supported on the running system's installed OpenSSL version. On recent releases of OpenSSL, openssl list -digest-algorithms will display the available digest algorithms.

Help Wanted

Looking for additional maintainers. Please contact richardgirges [ at ] gmail.com if you're interested. Pull Requests are welcome!

Thanks & Credit

Brian White for his stellar work on the Busboy Package and the connect-busboy Package

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