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Best Chai Alternatives in 2026

Based on real usage data from 0 websites analyzed by StackSee

We analyzed real website data to find the most popular alternatives to Chai. Chai is chai is a BDD / TDD assertion library for node and the browser that can be paired with any javascript testing framework. See which tools teams actually use instead, backed by real-time detection data.

Top Alternatives to Chai

Technologies in the JavaScript libraries category that teams use instead of Chai, ranked by adoption.

1

CA

CamanJS CamanJS is a JavaScript library designed for image editing directly on the browser, allowing manipulation of canvas elements.

JavaScript libraries

2

CA

Cart.js Cart.js is a very small open-source Javascript library that makes the addition of powerful Ajax cart functionality to your Shopify theme a breeze.

JavaScript libraries

3

CH

Choices Choices.js is a lightweight, configurable select box/text input plugin.

JavaScript libraries

4

CL

ClientJS ClientJS is a JavaScript library for generating browser fingerprints, exposing all the browser data-points.

JavaScript librariesBrowser fingerprinting

5

CL

Clipboard.js

JavaScript libraries

6

CL

Closure Library Closure Library is a JavaScript library developed by Google for building robust web applications, offering utilities for DOM manipulation, event handling, data structures, and more.

JavaScript libraries

7

CO

core-js core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.

JavaScript libraries

8

CR

crypto-js crypto-js is a JavaScript library of crypto standards.

JavaScript libraries

9

@S

@sulu/web

JavaScript libraries

10

_H

_hyperscript _​hyperscript is a scripting language for adding interactivity to the front-end.

JavaScript libraries

11

AO

AOS JavaScript library to animate elements on your page as you scroll.

JavaScript libraries

12

AR

ARM JS ARM JS is a JavaScript library that centralizes data management and streamlines interactions with APIs.

JavaScript libraries

13

AP

Apollo Apollo is a fully-featured caching GraphQL client with integrations for React, Angular, and more.

JavaScript libraries

14

AX

Axios Promise based HTTP client for the browser and node.js

JavaScript libraries

15

AU

autoComplete.js autoComplete.js is a simple, pure vanilla Javascript library.

JavaScript libraries

16

BA

Barba.js Barba.js is a small and easy-to-use javascript library that helps you creating fluid and smooth transitions between your website's pages.

JavaScript libraries

17

BO

Boba.js

JavaScript libraries

18

BO

Boomerang boomerang is a JavaScript library that measures the page load time experienced by real users, commonly called RUM (Real User Measurement).

JavaScript librariesRUM

19

BO

Bootstrap Table

JavaScript libraries

20

BR

Browser-Update.org Browser-update.org is a tool to unobtrusively notify visitors that they should update their web browser in order to use your website.

WidgetsJavaScript libraries

21

BA

basket.js

JavaScript libraries

22

DH

DHTMLX DHTMLX specialises in building JavaScript UI libraries for project management, event planning, big data visualisation, and reporting.

JavaScript libraries

23

DA

Darkmode.js Darkmode.js is a JavaScript library that enables an HTML element to switch between CSS themes.

JavaScript libraries

24

DA

DataTables DataTables is a plug-in for the jQuery Javascript library adding advanced features like pagination, instant search, themes, and more to any HTML table.

JavaScript libraries

25

DA

Day.js

JavaScript libraries

26

DO

Dojo

JavaScript libraries

27

DR

Dropzone Dropzone is a JavaScript library that turns any HTML element into a dropzone.

JavaScript libraries

28

DE

decimal.js

JavaScript libraries

29

EA

EaselJS EaselJS is a JavaScript library designed to simplify working with the HTML5 Canvas element, making it useful for creating games, generative art, and other graphical applications.

JavaScript libraries

30

ES

Essential JS 2

JavaScript frameworksJavaScript libraries

31

ET

Ethers Ethers is a complete, tiny and simple Ethereum library.

JavaScript libraries

32

FA

FancyBox FancyBox is a tool for displaying images, html content and multi-media in a Mac-style 'lightbox' that floats overtop of web page.

JavaScript libraries

33

FI

FilePond FilePond is a JavaScript library for file uploads.

JavaScript libraries

34

FI

FingerprintJS FingerprintJS is a browser fingerprinting library that queries browser attributes and computes a hashed visitor identifier from them.

JavaScript librariesBrowser fingerprinting

35

FL

Flickity Flickity is a JavaScript slider library, built by David DeSandro of Metafizzy fame.

JavaScript libraries

36

FO

FooTable FooTable is a jQuery plugin that converts HTML tables into expandable responsive tables.

JavaScript libraries

37

FO

Formstone Formstone is a front-end library that simplifies web development by providing customizable jQuery plugins that abstract modern web patterns.

JavaScript libraries

38

FR

Framer Motion Framer Motion is a modern animation library for JavaScript, React, and Vue.

JavaScript libraries

39

FR

Fresco Fresco is a responsive lightbox. Fresco comes with thumbnail support, fullscreen zoom, Youtube and Vimeo integration for HTML5 video and a powerful Javascript API.

JavaScript libraries

40

FU

fullPage.js fullPage.js a jQuery and vanilla JavaScript plugin for fullscreen scrolling websites.

JavaScript libraries

41

HA

Hammer.js Hammer.js is a JavaScript library for adding touch gestures like swipe, pinch, and rotate to web applications.

JavaScript libraries

42

HA

Handsontable Handsontable is a JavaScript component that combines data grid features with spreadsheet-like UX.

JavaScript libraries

43

HE

HeadJS HeadJS is a JavaScript library that optimizes web performance by managing the loading and execution of scripts and stylesheets to ensure faster page loads and efficient resource handling.

JavaScript librariesPerformance

44

HI

Highlight.js Highlight.js is a JavaScript library for syntax highlighting, supporting 192 languages and 496 themes.

JavaScript libraries

45

HO

Howler.js Howler.js is an audio library with support for the Web Audio API and a fallback mechanism for HTML5 Audio.

JavaScript libraries

46

HT

Htmx Htmx is a JavaScript library for performing AJAX requests, triggering CSS transitions, and invoking WebSocket and server-sent events directly from HTML elements.

JavaScript libraries

47

GI

Gijgo Gijgo is a set of free for commercial use javascript controls.

JavaScript libraries

48

GL

Glider.js Glider.js is a fast, lightweight, responsive, dependency-free scrollable list with customisable paging controls.

JavaScript libraries

49

GL

Glide.js Glide.js is a dependency-free JavaScript ES6 slider and carousel.

JavaScript libraries