The [freeCodeCamp.org](https://freecodecamp.org) community is possible thanks to thousands of kind volunteers like you. If you want to contribute your time and expertise, we would be excited to welcome you aboard.
> [!NOTE] Before you proceed, please take a quick 2 minutes to read our [Code of Conduct](https://www.freecodecamp.org/code-of-conduct). We strictly enforce it across our community so that contributing to freeCodeCamp.org is a safe, inclusive experience for everyone.
Happy contributing.
You are welcome to:
- Create, update and fix bugs in our [curriculum](#curriculum).
- Help us fix bugs in freeCodeCamp.org's [learning platform](#learning-platform).
We answer the most common questions about contributing [in our contributor FAQ](/FAQ.md).
## Curriculum
Our curriculum is curated by the global freeCodeCamp community. This way, we are able to incorporate expert knowledge from volunteers like you.
You can help expand and improve the curriculum. You can also update project user stories to better-explain concepts. And you can improve our automated tests so that we can more accurately test people's code.
**If you're interested in improving our curriculum, here's [how to contribute to the curriculum](how-to-work-on-coding-challenges.md).**
We are localizing freeCodeCamp.org to major world languages. Some of the certifications are already live in [Chinese (中文)](https://chinese.freecodecamp.org/learn) and [Spanish (Español)](https://www.freecodecamp.org/espanol/learn/). We encourage you to read the [announcement here](https://www.freecodecamp.org/news/world-language-translation-effort) and share it your friends to get them excited about this.
Our learning platform runs on a modern JavaScript stack. It has various components, tools, and libraries. These include Node.js, MongoDB, OAuth 2.0, React, Gatsby, Webpack, and more.
Broadly, we use
- a Node.js based API server
- a set of React-based client applications
- and testing scripts to evaluate camper-submitted curriculum projects.
