Best Javascript Utilities & Libraries in 2025

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Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Key Flagsmith features:

Feature Flags Remote Config A/B/X Testing & Optimization Organization Management

Try for free Open Source freemium

Award-winning JavaScript charting library & Qlik Sense extensions from a global leader in data visualization! Loved by thousands of happy customers, including over 75% of Fortune 500 companies & over half of the top 1000 software vendors worldwide.

Key AnyChart features:

Chart types Data formats Integrations Docs

Open Source freemium $49.0 / One-off (Next Unicorn license for startups)

A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application.

Key Highcharts features:

Customization Cross-Browser Compatibility Wide Range of Chart Types Interactive Features

JavaScript charts for web and mobile apps.

Key FusionCharts features:

Extensive Chart Options Interactive Visualizations Cross-Platform Support Comprehensive Documentation

Open Source

D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS. .

Key D3.js features:

Powerful Visualization Data Binding Community and Ecosystem Flexibility

Open Source

Easy, object oriented client side graphs for designers and developers.

Key Chart.js features:

Open Source Ease of Use Lightweight Responsive Design

Open Source

Interactive charts for browsers and mobile devices.

Key Google Charts features:

Easy Integration Wide Variety of Chart Types Dynamic Data Handling Cross-Browser Compatibility

ZingChart is a fast, modern, powerful JavaScript charting library for building animated, interactive charts and graphs. Bring on the big data!

Key ZingChart features:

Feature-Rich Performance Cross-Platform Support Ease of Use

freemium $99.0 / Annually (Website license for a single website or domain)

Advanced javascript charting library that will suit any data visualization need.

Key amCharts features:

Comprehensive Feature Set Ease of Use Customizability Responsive Design

Open Source

Lo-Dash is a drop-in replacement for Underscore.

Key Lo-Dash features:

Performance Consistency Modularity Community and Support

Open Source

Chartist.JS - simple responsive charts.

Key Chartist.js features:

Simple to Use SVG-Based Responsive Design Customizable

JavaScript library for app development using cloud services.

Key AWS Amplify features:

Ease of Use Integration with AWS Services Speed of Deployment Automated Workflows

FLV Player is a free app for playing FLV videos on PC, Mac, Android, iPhone, and Google Drive.

free