Best Free JavaScript Libraries of 2025 - Page 3

Cleave.js serves a straightforward function: it automatically formats the text entered into input fields. This library supports various formats, including credit card numbers, phone numbers with internationalization support for each country, dates, numerals, and it allows for custom delimiters, prefixes, and block patterns. It is compatible with CommonJS/AMD, provides a ReactJS component, an AngularJS directive (1.x), and supports ES modules. The primary goal is to enhance the readability of data entered into input fields without requiring developers to create complex regular expressions or mask patterns for formatting. While it simplifies input formatting, it is important to note that it does not substitute validation or masking libraries; proper data sanitation and validation should still be implemented on the server side. Contributions from the community have enriched the types available, and specific types for the React component can be imported similarly. Ultimately, Cleave.js streamlines the process of managing user input while maintaining the necessary backend security and validation practices.

This is a straightforward library designed to manage intricate animations effortlessly. It also permits the integration of custom functions for animations that aren't reliant on CSS! Simply install it, add it to your package.json, and incorporate it into your JavaScript code. You can instantly create scroll animations, trigger effects based on scroll position, and generate multiple animations according to the X coordinate of the mouse. By creating an instance of Choreographer, you can execute animations triggered by any measurement you prefer, such as scroll position or mouse location. To grasp the functionality better, reviewing the provided examples is highly recommended. Be cautious, as overlapping animation ranges that target the same style properties can lead to unexpected bugs! The library includes two fundamental animation functions known as 'scale' and 'change.' The concept of progress facilitates the gradual scaling of values, such as smooth transitions in opacity or 2D translations. If the value falls between 0 and 1, it indicates that you are within a defined range, enabling more precise control over the animations. With this tool, you can elevate your web animations to a whole new level.

D3.js is a powerful JavaScript library designed for the dynamic manipulation of documents through data. By leveraging HTML, SVG, and CSS, D3 enables the transformation of data into engaging visual representations. Its focus on web standards allows developers to utilize the advanced features of modern web browsers without being restricted by a proprietary framework, merging robust visualization tools with a data-centric approach to DOM manipulation. With D3, users can associate any type of data with a Document Object Model (DOM) and perform data-driven alterations to that document. For instance, D3 can create an HTML table from a list of numbers or transform the same data into an interactive SVG bar chart that features smooth transitions and user engagement. Rather than being an all-encompassing framework that attempts to include every possible feature, D3 addresses the core challenge of effectively manipulating documents based on data. This strategy not only circumvents proprietary limitations but also provides remarkable flexibility, unlocking the full potential of web standards like HTML, SVG, and CSS. As a result, D3 becomes a versatile tool for developers seeking to create rich, interactive data visualizations that can adapt to a variety of use cases.

UAParser.js provides a structured alternative to the unstructured mess that is real-world user agent strings.

WebDataRocks is a user-friendly and free JavaScript library designed for the creation of efficient pivot tables, compatible with frameworks such as Angular, Vue, and React. It boasts several advantages, including being free of charge and highly customizable, as well as functioning as a JavaScript-based client-side component that can handle 1MB of JSON or CSV data files. Equipped with a comprehensive array of enterprise-level features, WebDataRocks seamlessly integrates with various third-party charting libraries to enhance data visualization capabilities. The library includes functionalities like filtering, sorting, grouping, conditional and number formatting, and calculated values, making it an effective tool for managing and analyzing data. Additionally, users can easily print or export their reports to formats like PDF, Excel, or HTML with just a single click, which streamlines the reporting process significantly. Offering a modern and aesthetically pleasing user interface similar to a spreadsheet, the tool is optimized for both web browsers and applications, ensuring a reliable and enjoyable user experience while working with data.