Jun 23, 2025 · The FileReader interface lets web applications asynchronously read the contents of files (or raw data buffers) stored on the user's computer, using File or Blob objects to …

In this tutorial, you'll learn about the JavaScript FileReader API and how to use it to implement the file upload.

In the current world of web development, managing files efficiently and securely is essential. JavaScript, which is key to client-side scripting, provides strong tools through the File and …

Jul 12, 2025 · The FileReader.readAsText () method is a part of the FileReader API in JavaScript. It allows reading the contents of a file as a text string, which is especially useful for handling …

Apr 9, 2020 · FileReader is an object with the sole purpose of reading data from Blob (and hence File too) objects. It delivers the data using events, as reading from disk may take time.

Apr 22, 2021 · In this article, you will explore the File, FileReader, and FileReaderSync APIs. If you would like to follow along with this article, you will need: An understanding of JavaScript …

Interactive API reference for the JavaScript FileReader Object. FileReader is used to read the contents of a Blob or File.

Dec 12, 2024 · Reading local files using JavaScript can greatly enhance the interactivity and functionality of a web application. The File API in JavaScript provides the necessary methods …

May 8, 2024 · Welcome to a quick tutorial and examples of how to read files in Javascript. Yes, you read that right – It is possible to read files in client-side Javascript. Read the selected file. …

Sep 18, 2025 · The readAsText() method of the FileReader interface is used to read the contents of the specified Blob or File. When the read operation is complete, the readyState property is …