An open API service for software projects hosted on Open Collective.

principal


Kind: Organization - https://opencollective.com/principal - Website: https://www.principal.com/about-us - Code: https://github.com/PrincipalFinancialGroup

Most funded collectives

webpack

webpack is THE build solution for modern web applications.

$10,800.0 - Collective

Jest

🃏Delightful JavaScript Testing

$8,940.0 - Collective

Cucumber

Behaviour Driven Development tool

$8,616.0 - Collective

Babel

Babel is the community maintained compiler for evolving the future of JavaScript

$6,465.0 - Collective

pytest

The pytest framework makes it easy to write small tests, yet scales to support complex functional testing

$5,790.0 - Collective

ESLint

The pluggable linting utility for JavaScript and JSX

$5,700.0 - Collective

Cypress.io

The web has evolved. Finally, testing has too.

$5,485.0 - Collective

Chai

Chai is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework.

$5,200.0 - Collective

html-webpack-plugin

Simplifies creation of HTML files with Webpack

$5,200.0 - Collective

axios

Modern promise based HTTP client for Node.js and the browser

$4,300.0 - Collective

Mocha

simple, flexible, fun javascript test framework for node.js & the browser.

$3,925.0 - Collective

Prettier

Prettier is an opinionated code formatter.

$3,805.0 - Collective

Storybook

The development environment you'll love to use

$3,140.0 - Collective

sinon

We provide the most widely used stubbing library for JavaScript with ~7M weekly downloads

$2,976.0 - Collective

Husky

Modern native Git hooks made easy 🐶 woof!

$2,150.0 - Collective

vue

We are on a mission to help more frontend devs enjoy building apps for the web.

$2,150.0 - Collective

Preact

3kb alternative to React with the same ES6 API.

$2,150.0 - Collective

react-pdf

Create PDF files using React

$2,150.0 - Collective

Parcel

📦🚀 Blazing fast, zero configuration web application bundler

$2,150.0 - Collective

Formik

Build forms in React, without the tears 😭

$2,150.0 - Collective

JSON Schema

JSON Schema is a vocabulary that allows you to annotate and validate JSON documents.

$1,740.0 - Collective

LocalStack

Enabling an efficient local dev&test loop for Cloud applications

$1,655.0 - Collective

React Hook Form

📋 React hooks for form validation without the hassle

$1,295.0 - Collective

The A11Y Project

A community-driven effort to make digital accessibility easier.

$1,080.0 - Collective

Mongoose.js

The leading ODM for Node.js and MongoDB

$708.0 - Collective

Redux DevTools

Developer Tools to power-up Redux development workflow or any other architecture which handles the state change. It helps to boost the developer’s productivity significantly and makes the development fun.

$700.0 - Collective

Mock Service Worker

A seamless REST/GraphQL API mocking library for JavaScript applications.

$360.0 - Collective

View breakdown

Recent Transactions

Mock Service Worker

30.0 USD - Monthly financial contribution to Mock Service Worker

02 Jan 2026

The A11Y Project

90.0 USD - Monthly financial contribution to The A11Y Project

02 Jan 2026

JSON Schema

90.0 USD - Monthly financial contribution to JSON Schema

01 Jan 2026

React Hook Form

30.0 USD - Monthly financial contribution to React Hook Form

01 Jan 2026

LocalStack

60.0 USD - Monthly financial contribution to LocalStack

01 Jan 2026

axios

175.0 USD - Monthly financial contribution to axios

01 Jan 2026

ESLint

140.0 USD - Monthly financial contribution to ESLint

01 Jan 2026

pytest

175.0 USD - Monthly financial contribution to pytest

01 Jan 2026

Cypress.io

90.0 USD - Monthly financial contribution to Cypress.io

01 Jan 2026

Prettier

60.0 USD - Monthly financial contribution to Prettier

01 Jan 2026

Mock Service Worker

30.0 USD - Monthly financial contribution to Mock Service Worker

02 Dec 2025

The A11Y Project

90.0 USD - Monthly financial contribution to The A11Y Project

02 Dec 2025

Babel

30.0 USD - Monthly financial contribution to Babel

02 Dec 2025

Storybook

90.0 USD - Monthly financial contribution to Storybook

02 Dec 2025

JSON Schema

90.0 USD - Monthly financial contribution to JSON Schema

01 Dec 2025

axios

175.0 USD - Monthly financial contribution to axios

01 Dec 2025

React Hook Form

30.0 USD - Monthly financial contribution to React Hook Form

01 Dec 2025

LocalStack

60.0 USD - Monthly financial contribution to LocalStack

01 Dec 2025

Cypress.io

90.0 USD - Monthly financial contribution to Cypress.io

01 Dec 2025

ESLint

140.0 USD - Monthly financial contribution to ESLint

01 Dec 2025

Jest

90.0 USD - Monthly financial contribution to Jest (sponsor)

01 Dec 2025

pytest

175.0 USD - Monthly financial contribution to pytest

01 Dec 2025

Prettier

60.0 USD - Monthly financial contribution to Prettier

01 Dec 2025

Babel

30.0 USD - Monthly financial contribution to Babel

02 Nov 2025

Mock Service Worker

30.0 USD - Monthly financial contribution to Mock Service Worker

02 Nov 2025

The A11Y Project

90.0 USD - Monthly financial contribution to The A11Y Project

02 Nov 2025

Storybook

90.0 USD - Monthly financial contribution to Storybook

02 Nov 2025

JSON Schema

90.0 USD - Monthly financial contribution to JSON Schema

01 Nov 2025

React Hook Form

30.0 USD - Monthly financial contribution to React Hook Form

01 Nov 2025

LocalStack

60.0 USD - Monthly financial contribution to LocalStack

01 Nov 2025

axios

175.0 USD - Monthly financial contribution to axios

01 Nov 2025

ESLint

140.0 USD - Monthly financial contribution to ESLint

01 Nov 2025

pytest

175.0 USD - Monthly financial contribution to pytest

01 Nov 2025

Jest

90.0 USD - Monthly financial contribution to Jest (sponsor)

01 Nov 2025

Cypress.io

90.0 USD - Monthly financial contribution to Cypress.io

01 Nov 2025

Prettier

60.0 USD - Monthly financial contribution to Prettier

01 Nov 2025

Babel

30.0 USD - Monthly financial contribution to Babel

02 Oct 2025

Mock Service Worker

30.0 USD - Monthly financial contribution to Mock Service Worker

02 Oct 2025

The A11Y Project

90.0 USD - Monthly financial contribution to The A11Y Project

02 Oct 2025

Storybook

90.0 USD - Monthly financial contribution to Storybook

02 Oct 2025

React Hook Form

30.0 USD - Monthly financial contribution to React Hook Form

01 Oct 2025

JSON Schema

90.0 USD - Monthly financial contribution to JSON Schema

01 Oct 2025

LocalStack

60.0 USD - Monthly financial contribution to LocalStack

01 Oct 2025

axios

175.0 USD - Monthly financial contribution to axios

01 Oct 2025

Jest

90.0 USD - Monthly financial contribution to Jest (sponsor)

01 Oct 2025

ESLint

140.0 USD - Monthly financial contribution to ESLint

01 Oct 2025

pytest

175.0 USD - Monthly financial contribution to pytest

01 Oct 2025

Cypress.io

90.0 USD - Monthly financial contribution to Cypress.io

01 Oct 2025

Prettier

60.0 USD - Monthly financial contribution to Prettier

01 Oct 2025

Babel

30.0 USD - Monthly financial contribution to Babel

02 Sep 2025

Mock Service Worker

30.0 USD - Monthly financial contribution to Mock Service Worker

02 Sep 2025

The A11Y Project

90.0 USD - Monthly financial contribution to The A11Y Project

02 Sep 2025

Storybook

90.0 USD - Monthly financial contribution to Storybook

02 Sep 2025

JSON Schema

90.0 USD - Monthly financial contribution to JSON Schema

01 Sep 2025

React Hook Form

30.0 USD - Monthly financial contribution to React Hook Form

01 Sep 2025

LocalStack

60.0 USD - Monthly financial contribution to LocalStack

01 Sep 2025

axios

175.0 USD - Monthly financial contribution to axios

01 Sep 2025

pytest

175.0 USD - Monthly financial contribution to pytest

01 Sep 2025

ESLint

140.0 USD - Monthly financial contribution to ESLint

01 Sep 2025

Jest

90.0 USD - Monthly financial contribution to Jest (sponsor)

01 Sep 2025

Cypress.io

90.0 USD - Monthly financial contribution to Cypress.io

01 Sep 2025

Prettier

60.0 USD - Monthly financial contribution to Prettier

01 Sep 2025

ESLint

140.0 USD - Monthly financial contribution to ESLint

03 Aug 2025

Jest

90.0 USD - Monthly financial contribution to Jest (sponsor)

03 Aug 2025

Babel

30.0 USD - Monthly financial contribution to Babel

02 Aug 2025

Mock Service Worker

30.0 USD - Monthly financial contribution to Mock Service Worker

02 Aug 2025

The A11Y Project

90.0 USD - Monthly financial contribution to The A11Y Project

02 Aug 2025

Storybook

90.0 USD - Monthly financial contribution to Storybook

02 Aug 2025

React Hook Form

30.0 USD - Monthly financial contribution to React Hook Form

01 Aug 2025

JSON Schema

90.0 USD - Monthly financial contribution to JSON Schema

01 Aug 2025

LocalStack

60.0 USD - Monthly financial contribution to LocalStack

01 Aug 2025

axios

175.0 USD - Monthly financial contribution to axios

01 Aug 2025

Cypress.io

90.0 USD - Monthly financial contribution to Cypress.io

01 Aug 2025

pytest

175.0 USD - Monthly financial contribution to pytest

01 Aug 2025

Prettier

60.0 USD - Monthly financial contribution to Prettier

01 Aug 2025

Mock Service Worker

30.0 USD - Monthly financial contribution to Mock Service Worker

02 Jul 2025

Babel

30.0 USD - Monthly financial contribution to Babel

02 Jul 2025

The A11Y Project

90.0 USD - Monthly financial contribution to The A11Y Project

02 Jul 2025

Storybook

90.0 USD - Monthly financial contribution to Storybook

02 Jul 2025

JSON Schema

90.0 USD - Monthly financial contribution to JSON Schema

01 Jul 2025

React Hook Form

30.0 USD - Monthly financial contribution to React Hook Form

01 Jul 2025

LocalStack

60.0 USD - Monthly financial contribution to LocalStack

01 Jul 2025

axios

175.0 USD - Monthly financial contribution to axios

01 Jul 2025

pytest

175.0 USD - Monthly financial contribution to pytest

01 Jul 2025

ESLint

140.0 USD - Monthly financial contribution to ESLint

01 Jul 2025

Jest

90.0 USD - Monthly financial contribution to Jest (sponsor)

01 Jul 2025

Cypress.io

90.0 USD - Monthly financial contribution to Cypress.io

01 Jul 2025

Prettier

60.0 USD - Monthly financial contribution to Prettier

01 Jul 2025

The A11Y Project

90.0 USD - Monthly financial contribution to The A11Y Project

02 Jun 2025

Mock Service Worker

30.0 USD - Monthly financial contribution to Mock Service Worker

02 Jun 2025

Babel

30.0 USD - Monthly financial contribution to Babel

02 Jun 2025

Storybook

90.0 USD - Monthly financial contribution to Storybook

02 Jun 2025

JSON Schema

90.0 USD - Monthly financial contribution to JSON Schema

01 Jun 2025

React Hook Form

30.0 USD - Monthly financial contribution to React Hook Form

01 Jun 2025

LocalStack

60.0 USD - Monthly financial contribution to LocalStack

01 Jun 2025

axios

175.0 USD - Monthly financial contribution to axios

01 Jun 2025

pytest

175.0 USD - Monthly financial contribution to pytest

01 Jun 2025

ESLint

140.0 USD - Monthly financial contribution to ESLint

01 Jun 2025

Jest

90.0 USD - Monthly financial contribution to Jest (sponsor)

01 Jun 2025

Cypress.io

90.0 USD - Monthly financial contribution to Cypress.io

01 Jun 2025