Source: https://seerepo.com/r/freeCodeCamp/devdocs/built
Markdown source: https://seerepo.com/r/freeCodeCamp/devdocs/built.md
Description: devdocs is a Ruby repo built with rack and Sinatra. It makes its content with kramdown-parser-gfm, nokogiri, redcarpet, katex, kramdown, and 1 more.

# What is devdocs built with?

devdocs is a Ruby repo built with rack and Sinatra. It makes its content with kramdown-parser-gfm, nokogiri, redcarpet, katex, kramdown, and 1 more, is tested with capybara and Selenium, and deploys with puma. It has 68,802 written lines, with 62 test files.

Read on November 6, 2026, at commit ccdcdee.

Repository: https://github.com/freeCodeCamp/devdocs

## Frontend

### The base

- **rack**: 1 file

## Backend

### The base

- **Sinatra**: 1 file

## Support

### Content

- **kramdown-parser-gfm**
- **nokogiri**: 27 files
- **redcarpet**: 6 files
- **[katex](https://seerepo.com/uses/katex)**: 1 file
- **kramdown**: 1 file
- **rss**: 1 file

### Testing

- **capybara**: 1 file
- **Selenium**: 1 file

### Deploy

- **[puma](https://seerepo.com/uses/puma)**

### Tools

- **rake**
- **thor**: 2 files
- **sprockets**: 1 file
- **terser**: 1 file

### Other

- **erubi**
- **terminal-table**
- **webrick**
- **activesupport**: 5 files
- **typhoeus**: 5 files

## Other repos with a similar stack

- [rapid7/metasploit-framework](https://seerepo.com/r/rapid7/metasploit-framework/built): rack, Sinatra, nokogiri, redcarpet, puma · [Compare](https://seerepo.com/compare/freeCodeCamp/devdocs/vs/rapid7/metasploit-framework)
- [rails/rails](https://seerepo.com/r/rails/rails/built): nokogiri, redcarpet, puma · [Compare](https://seerepo.com/compare/freeCodeCamp/devdocs/vs/rails/rails)
- [mastodon/mastodon](https://seerepo.com/r/mastodon/mastodon/built): nokogiri, redcarpet, puma · [Compare](https://seerepo.com/compare/freeCodeCamp/devdocs/vs/mastodon/mastodon)
- [huginn/huginn](https://seerepo.com/r/huginn/huginn/built): nokogiri, kramdown, puma · [Compare](https://seerepo.com/compare/freeCodeCamp/devdocs/vs/huginn/huginn)
- [CopilotKit/CopilotKit](https://seerepo.com/r/CopilotKit/CopilotKit/built): rack, katex
- [google/gvisor](https://seerepo.com/r/google/gvisor/built): Sinatra, puma

## Frequently asked questions

### What language is devdocs written in?

devdocs is written in Ruby, with 68,802 written lines.

### What framework does devdocs use?

devdocs is built with rack and Sinatra.

### Does devdocs have tests?

Yes. devdocs has 62 test files and is tested with capybara and Selenium.

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

The ones that share most of its stack: rapid7/metasploit-framework, rails/rails, and mastodon/mastodon.

## 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.