Source: https://seerepo.com/r/CesiumGS/cesium/built
Markdown source: https://seerepo.com/r/CesiumGS/cesium/built.md
Description: cesium is a JavaScript repo built with Express. It makes its content with dompurify and is tested with @playwright/test.

# What is cesium built with?

cesium is a JavaScript repo built with Express. It makes its content with dompurify and is tested with @playwright/test. It has 862,179 written lines, with 10 test files.

Read on November 7, 2026, at commit fae001d.

Repository: https://github.com/CesiumGS/cesium

## Backend (/)

### The base

- **[Express](https://seerepo.com/uses/express)**: 1 file

## Support (/)

### Testing

- **@playwright/test**: 1 file

### Tools

- **gulp**: 2 files
- **yargs**: 2 files
- **chokidar**: 1 file
- **esbuild**: 1 file

### Other

- **compression**: 1 file
- **yazl**: 1 file

## Frontend (packages/core)

### Interface

- **earcut**: 1 file

## Support (packages/core)

### Other

- **urijs**: 4 files

## Frontend (packages/engine)

### Interface

- **@tweenjs/tween.js**: 2 files
- **[topojson-client](https://seerepo.com/uses/topojson-client)**: 1 file

## Support (packages/engine)

### Content

- **[dompurify](https://seerepo.com/uses/dompurify)**: 1 file

### Other

- **urijs**: 16 files
- **@zip.js/zip.js**: 2 files
- **autolinker**: 2 files
- **protobufjs**: 2 files
- **grapheme-splitter**: 1 file
- **kdbush**: 1 file
- **pako**: 1 file
- **rbush**: 1 file

## Support (packages/widgets)

### Other

- **nosleep.js**: 1 file

## Other repos with a similar stack

- [thedotmack/claude-mem](https://seerepo.com/r/thedotmack/claude-mem/built): Express, dompurify
- [paperclipai/paperclip](https://seerepo.com/r/paperclipai/paperclip/built): Express, dompurify
- [nexu-io/open-design](https://seerepo.com/r/nexu-io/open-design/built): Express, dompurify
- [louislam/uptime-kuma](https://seerepo.com/r/louislam/uptime-kuma/built): Express, dompurify
- [koala73/worldmonitor](https://seerepo.com/r/koala73/worldmonitor/built): topojson-client, dompurify
- [cheaper-inference/OmniRoute](https://seerepo.com/r/cheaper-inference/OmniRoute/built): Express, dompurify

## Frequently asked questions

### What language is cesium written in?

cesium is written in JavaScript, with 862,179 written lines.

### What framework does cesium use?

cesium is built with Express.

### Does cesium have tests?

Yes. cesium has 10 test files and is tested with @playwright/test.

### Which repos have a stack like cesium's?

The ones that share most of its stack: thedotmack/claude-mem, paperclipai/paperclip, and nexu-io/open-design.

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.