Companies Using RequireJS

We detect RequireJS on 957,885 domains, including DHL Express, United States Postal Service, RTX Corp. A detection means the technology is present on that domain, which for large organisations is often a single storefront or subdomain rather than a company-wide deployment. Among domains we matched to a company with a resolved industry, the most common is Business Consulting and Services (5.22%).

We detect 957,885 domains running RequireJS across our monthly crawl of live business domains. Company data could be matched for 618,070 of them (64.5%), and every company-size, industry and country breakdown on this page describes that matched subset rather than the full detected base. A further 258,680 domains carried a RequireJS detection previously and no longer do.

RequireJS holds 1.13% of the JavaScript Libraries category, ranking #20. This is a share of the domains we detect running a platform in this category — not a share of all websites, and not a share of spending — so it is not directly comparable to figures published on other denominators.

The top alternatives to RequireJS include jQuery (18.51% market share), core-js (12.13% market share), jQuery Migrate (9.86% market share), jQuery UI (5.64% market share) — measured as a share of the domains we detect running a platform in this category.

United States leads with 248,133 matched RequireJS domains, followed by United Kingdom (57,002), Germany (42,458), Canada (27,867), India (23,371). These are counts within the 618,070 domains we could match to a company record, not the full detected base.

The most common company size is 1-10 employees, representing 77.8% of the RequireJS domains we could match to a company record and size — a subset of 618,070 matched companies, not of all 957,885 detected domains. This is followed by 11-50 employees (16%) and 51-200 employees (3.88%).

Among the RequireJS domains we could match to a company with a known founding date, most were founded in the 2010s (40.54%), followed by the 2020s (30.6%). That matched subset is drawn from 618,070 companies and is not representative of all 957,885 detected domains. This suggests RequireJS is most popular among relatively young companies.

The ideal RequireJS customer is: Company Size: 10001+ employees, Founded: 2010-2019, Company Age: ~10-15 years old, Industry: IT Services, Financial Services, Consulting, Location: US, UK, India, Germany — based on our analysis of 618,070 enriched companies at TechnologyChecker.io.

Effectively, yes. The project is no longer actively developed, and ES6 modules give browsers native support for modular JavaScript, which removes the need for an AMD loader. Our data supports the decline: RequireJS fell from 998,953 to 957,885 active domains across June to August 2026 while our total observed domains rose, and 258,680 domains have dropped it since March 2026 — about 21% of its base.

Organisations we currently detect running RequireJS include DHL Express, the United States Postal Service, Boeing, Ericsson, Huawei, RTX, Philips, Airbnb, Carrefour and the City of New York. These maintain systems built before ES6 modules were universal. Note that they are the exception: 81% of RequireJS domains run GoDaddy Website Builder or Wix, where the loader ships with the platform rather than being chosen.

The primary alternatives are native ES6 modules (import/export syntax), build-time bundlers such as Webpack, Vite and Rollup, and modern frameworks with their own module systems. We publish no switching figures, and the reason is worth stating: native ES6 modules are a browser capability, not a technology we can detect on a page. The departures are measurable — 258,680 domains since March 2026 — but the destination leaves no footprint.

RequireJS is a JavaScript file and module loader implementing the AMD (Asynchronous Module Definition) API. It manages dependencies between JavaScript files in modular programming, allowing asynchronous loading of scripts without blocking page rendering. The framework was widely adopted in 2012–2018 before native ES6 module support became universal across modern browsers.

Yes, though mostly not deliberately. Our database shows 957,885 active domains using RequireJS, and the count is falling month over month. The base splits in two: a small enterprise tier maintaining genuine AMD codebases (DHL Express, USPS, Boeing, Ericsson), and a much larger group of small businesses on hosted builders — GoDaddy Website Builder (43.71%) and Wix (37.29%) — where RequireJS arrives with the platform.

RequireJS is a runtime module loader using AMD syntax; Webpack is a build-time bundler supporting ES6 modules, CommonJS and AMD. The practical difference is when dependency resolution happens — in the browser on every page load, or once at build time. That timing difference is the main reason RequireJS is being retired, and why our data shows it as the one library in its category with a falling domain count.

Because the browser absorbed its job. Native ES6 module support is now effectively universal, so a runtime AMD loader adds work without adding capability, and modern bundlers resolve dependencies at build time with better performance and tree-shaking. Our measurement of that decline is 258,680 domains dropped since March 2026 (about 21% of the base) and an active count that falls while our total observed domains rise — the clearest downward signal in this category.

Require() is a synchronous function from CommonJS (used in Node.js) and AMD loaders like RequireJS, while import is an asynchronous keyword from ES6 modules with static analysis support. Modern JavaScript uses import/export exclusively, as it enables tree-shaking and code improvement that require() can't provide. RequireJS implemented AMD's asynchronous require() before ES6 standardization.

Technically yes, but it is unnecessary — React and Vue have native ES6 module support. Our data shows a striking 81.82% overlap with React, which sounds like widespread joint use and is not: 81% of RequireJS domains run GoDaddy Website Builder or Wix, and those platforms ship React and a RequireJS-style loader in the same runtime. The overlap is one platform decision, repeated across many sites.

Yes, RequireJS is free and open source under the MIT license. However, the project reached end-of-life and no longer receives active development. Organizations still using RequireJS face long-term support challenges as browser vendors and framework maintainers prioritize ES6 modules. The framework's open-source nature enables community forks, but mainstream development has ceased.

Migration involves converting AMD define() and require() calls to ES6 import/export syntax, updating bundler configuration, and testing dependency resolution. For large codebases, use automated transpilers to convert 60–70% of modules, then manually refactor complex circular dependencies. Our data shows companies using RequireJS + Webpack can incrementally migrate by routing new modules through ES6 while maintaining AMD compatibility layers.

Based on our enriched company data, Business Consulting and Services leads at 5.22% of RequireJS domains, followed by Construction (4.35%), Retail (3.54%), Individual and Family Services (2.91%) and Wellness and Fitness Services (2.74%). That is a small-local-business profile rather than an enterprise IT one, and it follows from the website builders underneath most of these domains. The genuine enterprise users we detect are in logistics, aerospace and telecommunications — DHL Express, USPS, Boeing, Ericsson and RTX.

Yes, RequireJS adds runtime overhead from asynchronous module loading and dependency resolution. Modern bundlers like Webpack eliminate this overhead by resolving dependencies at build time and serving boosted bundles. Our tech stack analysis shows RequireJS users commonly deploy CDNs (86.59%) and Sentry monitoring (56.26%) to mitigate performance issues, but native ES6 modules offer superior load times without runtime loaders.