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Javascript Library Tools

The javascript library tools we detect on new sites, ranked by how many use each. Part of Build & Framework.

Source: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web

Tools tracked
1,545
in Build & Framework
Sites
2,421,783
using at least one javascript library tool
Leader
34%
jQuery, of these sites
Above 1%
26
tools on more than 1% of them

What we found

  1. jQuery leads, on 34% of the sites using a javascript library tool, 2.1 times as many sites as React Router.
  2. Only 26 of the 1,545 javascript library tools we track run on more than 1% of these sites.
  3. Among sites launched in September, RequireJS rose to #10 from #17 in August.

The leading javascript library tools

# Movement Tool Country Share Bar Sites 90 days
1 – jQuery Long-standing JavaScript library that smooths over DOM manipulation and Ajax across browsers. 34% 834,795
2 – React Router A routing library for React applications. 16% 392,247
3 – Motion Animation library for React and JavaScript. 15% 353,424
4 – TanStack Router Type-safe client-side router for React, Solid, and Vue. 11% 259,861
5 – Swiper Touch slider and carousel library for the web. 8.3% 200,199
6 ▲1 ES Module Shims Polyfill that enables import maps and ES module features in browsers. 6.9% 166,786
7 ▲1 js-cookie Lightweight JavaScript library for reading, writing and deleting browser cookies. 6.0% 145,801
8 ▼2 Modernizr JavaScript library that detects browser features. 5.9% 143,986
9 – GSAP GSAP (GreenSock Animation Platform). 4.6% 110,799
10 ▼1 Lenis A lightweight smooth-scroll library for web pages. 3.3% 80,217
11 ▼1 Masonry JavaScript grid layout library that arranges elements in a cascading masonry pattern. 3.2% 78,444
12 – Three.js A JavaScript library for creating and displaying animated 3D graphics in the browser with WebGL. 3.1% 74,379
13 ▲7 RequireJS JavaScript file and module loader implementing the AMD specification. 2.9% 71,184
14 ▼2 Lit Library for building fast, lightweight web components. 2.7% 64,185
15 – Zod A TypeScript-first schema declaration and validation library. 2.6% 62,900

Share is of the 2,421,783 sites using a javascript library tool; a site can use more than one. Arrows compare each tool's rank among sites launched in September with August. The line is its share of new sites over 90 days. Showing the top 15 of 1,545.

The StackScope API serves every javascript library tool and the launches using each, filterable and exportable, from £15 a month.

Recent launches using javascript library tools

Launch Launched Score
The Non-Tech AI 18 Oct 2026 7.1
Hosbah 18 Oct 2026 8.6
Melodic Recorder 18 Oct 2026 6.5
GiggleTime: Jokes & Comedians 18 Oct 2026 10
Profitmaster 18 Oct 2026 3.1
StrangerLens 18 Oct 2026 4.1

Often built with

Other kinds of tool most often found on the same launches, leaving out the plumbing every site has (DNS, CDN, hosting).