Source: https://seerepo.com/compare/elastic/logstash/vs/freeCodeCamp/devdocs
Markdown source: https://seerepo.com/compare/elastic/logstash/vs/freeCodeCamp/devdocs.md
Description: logstash and devdocs share 3 technologies: Sinatra, rack, and puma. Both are written in Ruby.

# logstash vs devdocs

logstash and devdocs share 3 technologies: Sinatra, rack, and puma. Both are written in Ruby.

- [elastic/logstash](https://seerepo.com/r/elastic/logstash): Logstash - transport and process your logs, events, or other data
- [freeCodeCamp/devdocs](https://seerepo.com/r/freeCodeCamp/devdocs): API Documentation Browser

## What they share and what sets them apart

- In common: Sinatra, rack, puma
- Only in logstash: csv, Apache, commons-logging, log4j-1.2-api, log4j-slf4j-impl, Logstash, slf4j-api, org.apache.logging.log4j:log4j-core, down, io.opentelemetry:opentelemetry-exporter-otlp, io.opentelemetry:opentelemetry-sdk, OpenTelemetry
- Only in devdocs: kramdown-parser-gfm, nokogiri, redcarpet, katex, kramdown, rss

## Side by side

| | logstash | devdocs |
|---|---|---|
| Size | 163,184 lines written, 684 code files | 68,802 lines written, 933 code files |
| Who writes it | 0.2% of its commits signed by AI. With GitHub Copilot, Claude Code, and Cursor | 0% of its commits signed by AI. With Claude Code |
| Activity | Last push November 6, 2026, 10,353 commits, 14,973 stars | Last push November 5, 2026, 5,910 commits, 39,608 stars |
| Tests | 474 test files. 60.2% of its code files have a test that imports them | 62 test files. 7% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, logstash or devdocs?

logstash, with 163,184 lines written; devdocs has 68,802.

The proof: [elastic/logstash's code at commit 6f7d271](https://github.com/elastic/logstash/tree/6f7d271503544972c368578a7e1e0f9b2fb55bf1)

### Which has more GitHub stars, logstash or devdocs?

devdocs, with 39,608 stars; logstash has 14,973.

The proof: [freeCodeCamp/devdocs on GitHub](https://github.com/freeCodeCamp/devdocs)

### Which has more tests, logstash or devdocs?

logstash, with 474 test files; devdocs has 62.

The proof: [elastic/logstash's code at commit 6f7d271](https://github.com/elastic/logstash/tree/6f7d271503544972c368578a7e1e0f9b2fb55bf1)

### Which was updated more recently, logstash or devdocs?

logstash: its last push was on November 6, 2026, and devdocs's on November 5, 2026.

The proof: [elastic/logstash's commits on GitHub](https://github.com/elastic/logstash/commits)

### Which has more commits signed by AI, logstash or devdocs?

logstash: an AI signed 0.2% of its commits, with GitHub Copilot, Claude Code, and Cursor.

The proof: [the commits each tool signed in elastic/logstash](https://seerepo.com/r/elastic/logstash/ai)

## Sources

- elastic/logstash: Read on November 8, 2026, at commit 6f7d271 (https://github.com/elastic/logstash/tree/6f7d271503544972c368578a7e1e0f9b2fb55bf1)
- freeCodeCamp/devdocs: Read on November 6, 2026, at commit ccdcdee (https://github.com/freeCodeCamp/devdocs/tree/ccdcdee721f5dcedbd471d41d53f43fb3355d2fd)

## 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.