BackYourStackBackYourStack
ESLint
The pluggable linting utility for JavaScript and JSX
Backers:
Airbnb ($44,610 since Feb 2019). Also: Github Sponsors ($27K), Shopify ($21K), Automattic ($20K) and 7 others
Yearly budget: $146,397 USD
89% progress to reach their next goal:
Amount to sustain ESLint for the foreseeable future
Babel
Babel is the community maintained compiler for evolving the future of JavaScript
Used in:
lottie-web, babel-preset-airbnb, rheostat and 27 others
Backers:
Airbnb ($129,358 since Sep 2019). Also: Handshake ($100K), trivago ($48K), Frontend Masters ($33K) and 7 others
Yearly budget: $255,680 USD
44% progress to reach their next goal:
3 maintainers
Chai
Chai is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework.
Used in:
polyglot.js, rheostat, hypernova and 15 others
Backers:
Airbnb ($2,158 since Sep 2019). Also: Principal Financial Group ($2K), CodePilot.ai ($250), Metabolize ($84) and 7 others
Yearly budget: $1,500 USD
Mocha
simple, flexible, fun javascript test framework for node.js & the browser.
Used in:
infinity, polyglot.js, mocha-wrap and 14 others
Backers:
clay ($22K), Icons8: free icons, photos, illustrations, and music ($10K), Localize ($9K) and 7 others
Yearly budget: $18,894 USD
sinon
We provide the most widely used stubbing library for JavaScript with ~3M weekly downloads
Used in:
rheostat, hypernova, hypernova-node and 9 others
Backers:
Airbnb ($7,807 since Sep 2019). Also: BitMEX ($2K), Mixmax ($2K), BuySellAds ($2K) and 7 others
Yearly budget: $5,679 USD
Jest
🃏Delightful JavaScript Testing
Used in:
rheostat, bossbat, jest-wrap and 6 others
Backers:
Airbnb ($3,870 since Sep 2019). Also: Frontend Masters ($6K), Principal Financial Group ($2K), Bugsnag Stability Monitoring ($2K) and 7 others
Yearly budget: $9,295 USD
Prettier
Prettier is an opinionated code formatter.
Backers:
Airbnb ($5,976 since Nov 2019). Also: Frontend Masters ($11K), Shogun Labs, Inc.  ($1K), InVision AG ($1K) and 7 others
Yearly budget: $27,520 USD
cheerio
Fast, flexible, and lean implementation of core jQuery designed specifically for the server
Backers:
Airbnb ($1,806 since Sep 2019). Also: Algolia ($2K), Github Sponsors ($802), VPNGorilla.com ($600) and 7 others
Yearly budget: $10,128 USD
Express
At least one person (or organization) already pledged to this project on Open Collective. You can add your pledge. This will incentivize them to start collecting money to fund their activities.
webpack
webpack is THE build solution for modern web applications.
Backers:
Airbnb ($60,670 since Sep 2019). Also: trivago ($390K), AG Grid ($120K), Frontend Masters ($39K) and 7 others
Yearly budget: $306,753 USD
33% progress to reach their next goal:
50% Payouts
The EinsteinPy Project
Creating a Software Suite for Gravitational Physics
Husky
Modern native Git hooks made easy 🐶 woof!
Backers:
Padlet ($1000), Skyscanner ($928), GitKraken ($800) and 7 others
Yearly budget: $5,712 USD
Rollup
The JavaScript module bundler
Backers:
Airbnb ($1,100 since Oct 2021). Also: Aragon ($3K), Oasis Digital Solutions Inc. ($2K), Frontend Masters ($2K) and 7 others
Yearly budget: $9,430 USD
Sindre Sorhus
Full-Time Open-Sourcerer
Backers:
Retool ($7K), GatsbyJS ($5K), Strapi ($3K) and 7 others
Yearly budget: $30,807 USD
Storybook
The development environment you'll love to use
Used in:
rheostat, lunar
Backers:
Airbnb ($26,868 since Sep 2019). Also: Applitools: AI-powered Visual Testing and Monitoring  ($6K), Frontend Masters ($5K), Chromatic ($5K) and 7 others
Yearly budget: $39,016 USD
SVGO
Developing and maintaining SVGO
Backers:
Evil Martians ($30), GoMage ($5)
Yearly budget: $143 USD
urllib3
Python's most depended-on HTTP client library
Backers:
Github Sponsors ($1K), OpenCraft ($100)
Yearly budget: $7,416 USD
Yarn
Yarn is the community maintained package manager for JavaScript; we aim to make software development predictable and stable 📦
Used in:
visx, lunar
Backers:
Github Sponsors ($1K), VersionPress s.r.o. ($100), Torutek ($50)
Yearly budget: $2,333 USD
Bluebird
Used in:
hypernova
At least one person (or organization) already pledged to this project on Open Collective. You can add your pledge. This will incentivize them to start collecting money to fund their activities.
ioredis
A robust, performance-focused and full-featured Redis client for Node.js that supports Sentinel and Cluster. Works in NodeJS, Electron platforms.
Used in:
bossbat
Backers:
Invertase ($945), Centimani co. ($200), Algolia ($51) and 3 others
Yearly budget: $561 USD
3% progress to reach their next goal:
Robust Redis client that supports all the new features
IPython
IPython is an enhanced interactive Python environment aimed at maximizing productivity in workflows that combine data, computation and exploratory programming.
lint-staged
improve developer experience and code quality for teams
Backers:
Skyscanner ($928), Easy Agile ($500), Tripwire, Inc. ($30) and 2 others
Yearly budget: $2,310 USD
Lodash
At least one person (or organization) already pledged to this project on Open Collective. You can add your pledge. This will incentivize them to start collecting money to fund their activities.
markdown-to-jsx
The most lightweight, customizable React markdown component.
Used in:
lunar
Yearly budget: $138 USD
Moment.js
Used in:
lunar
At least one person (or organization) already pledged to this project on Open Collective. You can add your pledge. This will incentivize them to start collecting money to fund their activities.
istanbul
Used in:
polyglot.js, rheostat, mocha-wrap and 10 others
To our knowledge, this project is not on Open Collective or other funding platform. You can create a pledge. This will incentivize them to start collecting money to fund their activities.
enzyme
To our knowledge, this project is not on Open Collective or other funding platform. You can create a pledge. This will incentivize them to start collecting money to fund their activities.
lerna
To our knowledge, this project is not on Open Collective or other funding platform. You can create a pledge. This will incentivize them to start collecting money to fund their activities.
chalk
To our knowledge, this project is not on Open Collective or other funding platform. You can create a pledge. This will incentivize them to start collecting money to fund their activities.
axios
To our knowledge, this project is not on Open Collective or other funding platform. You can create a pledge. This will incentivize them to start collecting money to fund their activities.
winston
Used in:
hypernova
To our knowledge, this project is not on Open Collective or other funding platform. You can create a pledge. This will incentivize them to start collecting money to fund their activities.