Best Component Libraries of 2025 - Reviews & Comparison

JOpt.TourOptimizer

DNA Evolutions GmbH

JOpt.TourOptimizer is an adaptable component to solve VRP, CVRP, and VRPTW class problems for any route optimization in logistics or similar fields. JOpt.TourOptimizer gives full access to modern optimization strategies and already includes many useful functions and algorithms to model various tour optimization problems. The JOpt.TourOptimizer library is easily integrated into any product. It can be customized to meet special requirements or adapt to the industries’ specific needs in which your software products are used. JOpt.TourOptimizer – enables you to enhance your product or project by seamlessly integrating DNA’s tour and resource optimization engine. It comes as a Java library or in Docker Container utilizing the Spring Framework and Swagger.

8 Ratings

Starting Price: €995

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DHTMLX

DHTMLX is a JavaScript UI library that provides a set of highly customizable and flexible components for building modern and responsive web applications. The library includes more than 30 UI components, such as Gantt, Scheduler, Kanban, diagrams, charts, grids, spreadsheets, calendars, trees, forms, and more. DHTMLX helps to advance web development and build feature-rich data-intensive applications of any complexity. One of the key advantages of DHTMLX is its compatibility with different web frameworks, including React, Angular, and Vue.js, which makes it a great choice for developers who are already working with these frameworks. DHTMLX is also designed with performance in mind. Its components are optimized for fast rendering. A comprehensive and rich API provides a straightforward way to manipulate JavaScript/HTML5 UI widgets. The library has detailed API documentation, tutorials, and examples that help developers quickly get up to speed and start building their apps.

Starting Price: $79

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Flutter

Google

Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase. Paint your app to life in milliseconds with Stateful Hot Reload. Use a rich set of fully-customizable widgets to build native interfaces in minutes. Quickly ship features with a focus on native end-user experiences. Layered architecture allows for full customization, which results in incredibly fast rendering and expressive and flexible designs. Flutter’s widgets incorporate all critical platform differences such as scrolling, navigation, icons and fonts, and your Flutter code is compiled to native ARM machine code using Dart's native compilers. Flutter's hot reload helps you quickly and easily experiment, build UIs, add features, and fix bugs faster. Experience sub-second reload times without losing state on emulators, simulators, and hardware.

9 Ratings

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Ionic

Drifty

The Ionic Platform allows you to bring your apps to market faster with an integrated app platform built on the leading cross-platform mobile SDK. Build, secure, and deliver new mobile apps—and transform existing ones—across iOS, Android, and Web platforms from a single codebase. Full scalability—Grow from prototype to production to enterprise-scale, without having to think about capacity, reliability, or performance. Better apps, everywhere—Slash your development time and costs with a platform that lets you write once and deploy anywhere—iOS, Android, and Web. The core of the Ionic development experience is Ionic Capacitor, a cross platform native runtime that runs equally well on native iOS and Android mobile devices, as well as any web browser. The big difference is that, unlike traditional native development or cross-platform approaches, the UI of a Capacitor app runs primarily in the browser.

5 Ratings

Starting Price: Free

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Kendo UI

Progress Software

Kendo UI is the ultimate collection of JavaScript UI components with libraries for jQuery, Angular, React, and Vue. Quickly build eye-catching, high-performance, responsive web applications—regardless of your JavaScript framework choice. Easily add advanced JavaScript components into your existing or new designs. Kendo UI’s hundreds of components handle everything you need to satisfy your users’ requirements. Add advanced components such as data grids, charts, schedulers, and calendars with just a few lines of code. Each is crafted for performance and customizability. Switching frameworks and starting new projects won’t require a new license or a big learning curve. Everything is included and up-to-date, APIs are consistent and theming is easy. Our QA process coupled with world-class support teams and a large user community means that our components will always work the way they’re supposed to—guaranteed.

2 Ratings

Starting Price: $899

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ILLA Cloud

Accelerate your internal tools development. A low-code platform for developers to build internal tools in minutes. With the SQL Generate feature, you can input natural language and get SQL statements that can be run directly. This works in databases like MySQL, Postgre, Supabase, etc. We offer developers a high degree of freedom to implement richer functionality through JavaScript, wrapping JS statements with {{Template Syntax}} to place at any string type variable spaces for more variety in the output. ILLA can connect to the mainstream databases or any data connected through APIs and add actions to chain to user events. It tightly integrates the data obtained from the back-end with the front-end components, allowing developers to write simple data calls to achieve massive information interaction.

2 Ratings

Starting Price: $10 per editor per month

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CopyElement

Webriy

CopyElement is the world’s first cloud-based Elementor component library, designed to revolutionize how WordPress users and designers build stunning websites. Unlike traditional Elementor add-ons that require plugin installations and create system dependencies, CopyElement offers a seamless, plugin-free experience. With over 650+ professionally designed sections, users can copy components directly from CopyElement’s website and paste them into their Elementor editor. Built to work flawlessly with both Elementor Free and Pro, CopyElement empowers creators to save time, streamline workflows, and eliminate the hassle of plugin overload. Whether you're building landing pages, portfolios, or eCommerce sites, CopyElement delivers modern UI/UX blocks with advanced effects like glassmorphism, parallax, hover animations, and more. With no installation or setup required, it’s never been easier to build beautiful WordPress websites—faster and smarter.

2 Ratings

Starting Price: $35/month/user

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Plotly Dash

Plotly

Dash & Dash Enterprise let you build & deploy analytic web apps using Python, R, and Julia. No JavaScript or DevOps required. Through Dash, the world's largest companies elevate AI, ML, and Python analytics to business users at 5% the cost of a full-stack development approach. Deliver apps and dashboards that run advanced analytics: ML, NLP, forecasting, computer vision and more. Work in the languages you love: Python, R, and Julia. Reduce costs by migrating legacy, per-seat licensed software to Dash Enterprise's open-core, unlimited end-user pricing model. Move faster by deploying and updating Dash apps without an IT or DevOps team. Create pixel-perfect dashboards & web apps, without writing any CSS. Scale effortlessly with Kubernetes. Support mission-critical Python applications with high availability.

2 Ratings

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Webix

JavaScript UI library and framework for speeding up web development. JS Framework for cross-platform web Apps development 102 UI widgets and feature-rich CSS / HTML5 JavaScript controls. Save at least 3000+ development hours by using ready-made widgets and UI controls. Develop Web UI 30% faster. We have accumulated the best design ideas. We have meticulously considered UX of each Webix component for five conceptual designs. Our support service specialists know everything about our library and can help you solve any problem. We also have an official support forum where you can discuss issues with our developers. By using Webix JS framework you receive an elegant and lightweight code based on object-oriented programming concepts. Associate your project with jQuery JavaScript library, MVC frameworks AngularJS, React, Vue.js, Backbone.js, third party UI extensions.

1 Rating

Starting Price: $848

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List & Label

combit

List & Label is a report generator for software developers to integrate reporting functions in their web, cloud and desktop applications. Made for development environments such as .NET, C#, Delphi, C++, ASP.NET, ASP.NET MVC, .NET Core etc. It is seamless to integrate, supports a huge variety of data sources and extends applications with extensive print, export and preview functions. With the WYSIWYG Report Designer, developers or end users create or edit different print templates for printing information that originates either from a database or another data source. In the Designer, you then have all the data at your disposal to prepare it for printing in different ways. The additionally included and entirely browser-based Web Report Designer for ASP.NET MVC offers more flexibility in development and is independent from printer drivers. Reports for web applications can be designed anywhere at any time in the browser of your choice.

1 Rating

Starting Price: €650/license

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Active Query Builder

Active Database Software

A system is worthwhile for business only if it helps make business decisions, so looking at the data from different angles is crucial for business decision makers. Allowing end-users to instantly get the data they need adds value to your software, reduces end user churn, and provides a competitive advantage. It takes up to several workdays to add a new report to an IT system. Adding and maintaining dozens of reports overloads your developers, and is one of the reasons why you can't ship new versions on time. With Active Query Builder, users take control and responsibility for creating and maintaining their reports. Users can reconfigure reports whenever they need to with zero intervention from your side. If you're already using a reporting system in your app, Active Query Builder will add value to it by allowing you to create new data sources for reports.

1 Rating

Starting Price: $199.00 one-time payment

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cryptography

cryptography includes both high-level recipes and low-level interfaces to common cryptographic algorithms such as symmetric ciphers, message digests, and key derivation functions. Encrypt with cryptography’s high-level symmetric encryption recipe. cryptography is broadly divided into two levels. One with safe cryptographic recipes that require little to no configuration choices. These are safe and easy to use and don’t require developers to make many decisions. The other level is low-level cryptographic primitives. These are often dangerous and can be used incorrectly. They require making decisions and having an in-depth knowledge of the cryptographic concepts at work. Because of the potential danger in working at this level, this is referred to as the “hazardous materials” or “hazmat” layer. These live in the cryptography.hazmat package, and their documentation will always contain an admonition at the top.

1 Rating

Starting Price: Free

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Untitled UI

Untitled UI is the world’s largest Figma UI kit, React component library, and icon system, offering designers and developers everything needed to design and build modern interfaces at speed. The Figma library features over 900 global styles and variables for color, typography, and effects, more than 10,000 meticulously crafted components and variants, 420 ready‑to‑use desktop and mobile page examples, and 4,600 neutral icons and logos, fully integrated into one design system. On the development side, Untitled UI React provides an open‑source collection of production‑ready components built with React v19.1, Tailwind CSS v4.1, TypeScript v5.8, and React Aria, ensuring type safety, accessibility (keyboard navigation and screen‑reader support), and lightning‑fast performance without lock‑in. AI‑ready Lovable and bolt.new kits enable instant prototyping with simple prompts, while seamless Figma previews and consistent styling across both platforms.

1 Rating

Starting Price: $129 per month

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DevExpress

Create elegant, high-impact user experiences and emulate the capabilities of today’s most popular business productivity apps with DevExpress UI components for WinForms, WPF, and Delphi VCL. Deliver high-performance decision support systems and analytics dashboards across platforms and devices with our fully integrated suite of UI controls, reporting tools and dashboards. DevExpress Reports is our royalty-free reporting tool and component library for the .NET ecosystem. DevExpress Reports ship with an intuitive Visual Studio report designer, runtime report designers for WinForms/WPF/Web, and a rich set of report controls, including cross tabs and charts so you and your users can create reports of unmatched elegance and informational clarity.

1 Rating

Starting Price: $599 one-time payment

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Bryntum

Bryntum is a leading provider of high-performance scheduling solutions for the web. Our suite of JavaScript components—including Gantt, Scheduler, Task Board, and Calendar—enables developers to build modern project management applications with features like drag-and-drop scheduling, resource management, and interactive timelines. Seamless integration with popular frameworks such as React, Angular, Vue, and Ext JS ensures flexibility and rapid implementation. From streamlining planning workflows to visualizing complex schedules and optimizing resource allocation, Bryntum’s solutions empower organizations across industries to deliver robust, intuitive project planning tools at scale.

Starting Price: $680

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Appsmith

Appsmith is an open-source low-code platform designed to help businesses rapidly build custom internal tools and applications. With a drag-and-drop interface and extensive integration capabilities, Appsmith simplifies the development of dashboards, admin panels, and CRUD applications. Developers can also customize functionality using JavaScript, while seamless integration with databases and APIs makes it highly versatile. It supports self-hosting and enterprise-grade security features such as role-based access controls, audit logging, and SOC 2 compliance, making it suitable for organizations of all sizes. Appsmith's AI-powered agent platform enables businesses to build custom conversational agents tailored to their specific needs. These agents can be embedded into various business workflows, enhancing support, sales, and customer success teams. By leveraging data-driven AI, the platform automates tasks and scales operations efficiently.

Starting Price: $0.4/hour/user

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JDeli

IDR Solutions

JDeli is a powerful Java SDK designed to help you easily read, write, convert, manipulate and process various image formats in Java. Here’s an overview of its features: -Wide Image Format Support: JDeli reads/writes BMP, GIF, HEIC, JPEG, JPEG2000, PNG, TIFF, and WebP. It also reads DICOM, EMF/WMF, PSD, and SGI formats. -High Performance: JDeli’s encoders and decoders outperform alternatives, making it ideal for performance-critical applications. -File Security: JDeli operates securely on your servers, with no callbacks or cloud access. Critical customer data remains secure. -Ongoing Development: JDeli offers nightly and stable builds with regular new features. It continues to expand its range of supported image formats, including AVIF, HEIC, and JPEG XL. -No Third-Party Libraries: JDeli avoids third-party dependencies, minimizing security risks and JVM crashes.

Starting Price: $1600 per year

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Zeroheight

zeroheight

zeroheight helps teams create, manage and maintain their design systems. Using zeroheight, designers, engineers, and product teams can collaborate and build design systems that can be easily shared across teams. Create a centralized repository of styles, tokens, guidelines, code, components, and patterns, integrated and synced between the tools you already use. zeroheight makes maintaining consistency across different products easier and reduces the time and effort needed to stand up new brands and products confidently. We offer features that suit teams from startup to enterprise, from governance to analytics to automation.

Starting Price: Free

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Syncfusion Essential Studio

Syncfusion

Includes more than 1,600 components and frameworks for Windows Forms, WPF, ASP.NET (Web Forms, MVC, Core), UWP, WinUI, Xamarin, Flutter, JavaScript, Angular, Blazor, Vue and React. Includes top requested components such as charts, grids, schedulers, diagrams, maps, gauges, docking, ribbons, and many more! Working with the industry’s best and brightest minds to streamline your business. Includes more than 1,700 components and frameworks for major platforms. A wide range of product demos and training, including video tutorials, documentation, and KBs. Every control is fine-tuned to work with a high volume of data. Create powerful apps by viewing and editing Excel, PDF, Word, and PowerPoint files. Truly unlimited dedicated support system via the public forum, feature & feedback page, live chat, and support tickets. Easy integration of tools to blend Syncfusion controls with your project.

Starting Price: $495 one-time payment

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Nevron Open Vision for .NET

Nevron Software

Nevron Open Vision for .NET is a suite of advanced components for .NET application development under WinForms, WPF, and Xamarin.Mac. All the components in the suite are cross platforms. NOV changes how you develop with .NET as with it you can write UI code that runs on Windows and Mac OS X without any modifications. Further, NOV provides a consistent window-less UI experience that provides fast and efficient management of UI resources, flicker-free, and 4K-enabled interfaces. All controls in the suite are GPU accelerated. Besides quality common UI controls (buttons, checkboxes, list boxes, tree view, etc.) NOV also includes class-leading heavy controls such as Barcode, Chart, Diagram, Gauge, Grid, Rich-Text Editor, and Scheduler. All controls in the suite are implemented both as native NOV controls and as platform-specific - WinForm, WPF, or Xamarin. Mac controls, which allows you to simply drag and drop them to your forms. All common UI controls in the suite are completely free.

Starting Price: $ 1496.00

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ACE4J

The Adaptive Calculation Engine for Java ACE4J provides a reliable platform for converting Excel-based applications into web applications at a low cost, efficiently, and with guaranteed easy maintenance and support in the future. At the same time ACE4J is a modern formula language based on a robust and efficient calculation engine, that is capable of evaluating complex Excel formulas. Thus it is also a great tool for new Java based Web applications that require heavy calculations. The Adaptive Calculation Engine (ACE4J) is a Java API used to evaluate the formulas written in Microsoft Excel style. This engine provides the most popular Microsoft Excel functions which are frequently encountered in applications that require heavy calculations. The number of available formulas and features increases with every Adaptive Calculation Engine release based on feedback from our customers. Adaptive Calculation Engine is capable of evaluating thousands of formulas within seconds.

Starting Price: $2,999 one-time payment

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Ignite UI

Infragistics

Build modern, data-rich applications faster with Ignite UI - the most complete UI toolkit with 120+ enterprise-grade components for every major framework. Whether you're working in Angular, React, Blazor, Web Components, or desktop platforms like WPF and Windows Forms, Ignite UI delivers blazing-fast data grids, powerful charting, and responsive layouts built for performance and scalability. From advanced tools like Pivot Grid, Spreadsheet, and DockManager, to developer-friendly CLI support and global theming, everything is designed to streamline development and deliver sleek, high-performance experiences across devices.

Starting Price: $1355 per year

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Telerik DevCraft

Telerik

Get 1,250+ .NET and JavaScript components for building feature-rich and professionally designed web, desktop, and mobile apps in less time and with fewer efforts. Plus, complete .NET embedded reporting. Standardize the look and feel of your applications across the board. Out-of-the-box themes and limitless customization options allow you to quickly present a professional, well-packed frontend to your users. Simplify your everyday software development tasks. Cut down with up to 50% development time, increase productivity, and follow the latest technology and user experience trends. Review demos, tutorials, feature descriptions, code samples, and detailed APIs. Benefit from leading support even during your free trial, extensive documentation, and community forums. Enjoy the finest and most complete software development tooling collection with .NET and JavaScript UI components for web, desktop, and mobile applications, reporting and report management solutions, automated testing, etc.

Starting Price: $1,299 per developer

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Leaflet

Leaflet is the leading open-source JavaScript library for mobile-friendly interactive maps. Weighing just about 42 KB of JS, it has all the mapping features most developers ever need. Leaflet is designed with simplicity, performance, and usability in mind. It works efficiently across all major desktop and mobile platforms, can be extended with lots of plugins, has a beautiful, easy-to-use, and well-documented API, and a simple, readable source code that is a joy to contribute to. Leaflet doesn't try to do everything for everyone. Instead, it focuses on making the basic things work perfectly. Hardware acceleration on mobile makes it feel as smooth as native apps. Utilizing CSS3 features to make panning and zooming really smooth. Smart polyline/polygon rendering with dynamic clipping and simplification makes it very fast. The modular build system for leaving out features you don't need. Tap delay elimination on mobile.

Starting Price: Free

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Polymer

The Polymer library provides a set of features for creating custom elements. These features are designed to make it easier and faster to make custom elements that work like standard DOM elements. Similar to standard DOM elements, Polymer elements can be instantiated using a constructor or document creation element, configured using attributes or properties, populated with internal DOM inside each instance, responsive to property and attribute changes, styled with internal defaults or externally, and responsive to methods that manipulate its internal state. Registering an element associates a class with a custom element name. The element provides callbacks to manage its lifecycle. Polymer also lets you declare properties, to integrate your element's property API with the Polymer data system. Shadow DOM provides a local, encapsulated DOM tree for your element. Polymer can automatically create and populate a shadow tree for your element from a DOM template.

Starting Price: Free

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Onsen UI

Experience streamlined development with zero-time setup, using the technologies you already know and love - Javascript, HTML and CSS. Worried that PhoneGap / Cordova apps are slow? Fear not! All animations in Onsen UI have been tuned and optimized to perform well on a wide range of devices. We take great care to ensure that apps made using Onsen UI feel smooth even on lower end devices. Onsen UI is easy to learn while being a powerful tool to create complex mobile apps. We have lots of learning resources including official documentation, an interactive tutorial and a community forum where your questions get answered. A rich variety of UI components specially designed for mobile apps. Onsen UI provides tabs, side menu, stack navigation and tons of other components such as lists and forms.

Starting Price: Free

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Sencha Ext JS

Sencha

Sencha Ext JS is a comprehensive JavaScript application framework for building feature-rich, cross-browser-compatible web and mobile applications. It includes a library with 140+ high-performance customizable components, a set of tools and a powerful UI Framework. Key Features Rich UI Components – Includes a variety of pre-built UI elements such as grids and trees, menus and toolbars, forms and buttons, etc. Cross-platform compatibility - Supports major desktop and mobile web browsers including IE Firefox Chrome Safari and Opera. Data Packages – Includes data components to interact with various data sources including JSON, XML and database connections. Theming and Skinning - Allow easy skinning and theming of the UI with CSS. Development Tools - Includes an extensive set of development tools including a visual designer and debugger. Large Community - Has an active and large community of developers who provide support, extensions, etc.

Starting Price: $1,295 one-time payment

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WinJS

Microsoft is committed to making sure that WinJS continues to run for existing customers. At this time we don't have plans to invest in new features or feature requests. Bug fixes will be limited to correcting substantial issues that are blocking customer deployments. We may also consider bug fixes to help our customers maintain their existing WinJS-based apps. You can contribute by reviewing and sending feedback on code checkins, suggesting and trying out new features as they are implemented, submitting bugs and helping us verify fixes as they are checked in, as well as submitting code fixes or code contributions of your own. Note that all code submissions will be rigorously reviewed and tested by the team, and only those that meet an extremely high bar for both quality and design appropriateness will be merged into the source.

Starting Price: Free

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Onymos

Time to market can make or break any app dev project. Yet many enterprises, agencies, and developers slow innovation by burning countless hours building core functionality from scratch and extending development timelines. When you can get the Features your app needs out of the box, development begins with the foundation already in place, and you can move fast from day one. Cut development time by as much as 80%. You can deploy in days, not months when you build your app with ready-made, full-stack features from Onymos. The average Onymos feature has over a thousand hours of development time, and that number’s only getting bigger. When software or APIs get updated, our features do too. UI/UX, front-end logic, and integrated cloud services like Stripe, APNs, and Amazon S3. When you use Onymos Features, you get it all. Companies like Albertsons, CVS Pharmacy, and Walmart are already building their apps with Onymos.

Starting Price: $0.60 per month

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openpyxl

openpyxl is a Python library to read/write Excel 2010 xlsx/xlsm/xltx/xltm files. It was born from a lack of an existing library to read/write natively from Python in the Office Open XML format. All kudos to the PHPExcel team as openpyxl was initially based on PHPExcel. By default, openpyxl does not guard against quadratic blowup or billion laughs XML attacks. To guard against these attacks install defusedxml. Install openpyxl using pip. It is advisable to do this in a Python virtualenv without system packages. Sometimes you might want to work with the checkout of a particular version. This may be the case if bugs have been fixed but a release has not yet been made. There is no need to create a file on the filesystem to get started with openpyxl. Just import the Workbook class and start work. Sheets are given a name automatically when they are created. Once you gave a worksheet a name, you can get it as a key of the workbook.

Starting Price: Free

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Best Component Libraries

Compare the Top Component Libraries as of December 2025

What are Component Libraries?

JOpt.TourOptimizer

DHTMLX

Flutter

Ionic

Kendo UI

ILLA Cloud

CopyElement

Plotly Dash

Webix

List & Label

Active Query Builder

cryptography

Untitled UI

DevExpress

Bryntum

Appsmith

JDeli

Zeroheight

Syncfusion Essential Studio

Nevron Open Vision for .NET

ACE4J

Ignite UI

Telerik DevCraft

Leaflet

Polymer

Onsen UI

Sencha Ext JS

WinJS

Onymos

openpyxl

Best Component Libraries

Compare the Top Component Libraries as of December 2025

What are Component Libraries?

JOpt.TourOptimizer

DHTMLX

Flutter

Ionic

Kendo UI

ILLA Cloud

CopyElement

Plotly Dash

Webix

List & Label

Active Query Builder

cryptography

Untitled UI

DevExpress

Bryntum

Appsmith

JDeli

Zeroheight

Syncfusion Essential Studio

Nevron Open Vision for .NET

ACE4J

Ignite UI

Telerik DevCraft

Leaflet

Polymer

Onsen UI

Sencha Ext JS

WinJS

Onymos

openpyxl

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