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01 · Leaderboard

Every repository, ranked by what the code actually says

844 publicly analysed repositories, ordered by codebase health - dead code, complexity, test file ratio, duplication and file size. Every figure here was computed, not estimated, and every row opens the report it came from.

What breaks first

On expressjs/express, changing eb9df264-6bc3-46e3-b9db-f9bf0a63bdfa/index.js affects 109 other files.

96 directly · 13 transitively

That is ArchSetu's blast-radius graph, traced automatically for every file in every repo it scans - not a health score, an actual dependency trace. A real result, computed live from that repository's own imports, not a mockup.

Open the Change Impact graph

Dead code is attack surface

Unreachable code still ships in your bundle. It can hide a forgotten auth check or a deprecated endpoint nobody is patching.

Complexity hides bugs from review

More branches means more edge cases a reviewer can miss - high-complexity functions are where vulnerabilities go unnoticed the longest.

Undeclared imports are supply-chain risk

A package imported but never declared can silently disappear or get typosquatted - see the Dependencies tab on any report.

Repos analysed

844

Functions scanned

8,939,403

Dead functions found

2,020,827

Lines of code scanned

338,537,763

02 · Reference

Reference repositories

Vetted, well-known open-source projects, analysed on the same terms as everything else.

Reference repositories ranked by health score
RankRepositoryLanguageHealthAvg complexityDead codeScan timeLast analysed
1expressjs/express★ 69,269JavaScript
98/100A+
1.10 / 1,6531.7s2mo ago
2django/django★ 91,419Python
96/100A+
1.81,227 / 32,90010.6s7d ago
03 · Community

Community-submitted repositories

Analysed by other visitors. Unvetted - the numbers are computed identically, but nobody has checked that the repository is what it claims to be.

Community-submitted repositories ranked by health score
RankRepositoryLanguageHealthAvg complexityDead codeScan timeLast analysed
426OWASP/NodeGoat★ 2,057JavaScript
79/100B
5.35 / 392.9s2mo ago
427japgolly/scalajs-react★ 1,659Scala
79/100B
5.7504 / 2,0002.1s2mo ago
428ucb-bar/chipyard★ 2,339Scala
79/100B
3.8212 / 6273.3s2mo ago
429slick/slick★ 2,664Scala
79/100B
5.7373 / 1,6031.7s2mo ago
430spark-jobserver/spark-jobserver★ 2,836Scala
79/100B
5.9181 / 6291.6s2mo ago
431softwaremill/elasticmq★ 2,907Scala
79/100B
5.964 / 3771.6s2mo ago
432facebook/litho★ 0HTML
79/100B
2.55,421 / 19,283-2mo ago
433florisboard/florisboard★ 8,515Kotlin
79/100B
3.0410 / 1,7084.2s2mo ago
434firebase/quickstart-android★ 9,292Kotlin
79/100B
2.0330 / 1,4442.2s2mo ago
435iSoron/uhabits★ 10,068Kotlin
79/100B
2.1428 / 2,6443.6s2mo ago
436Heapy/awesome-kotlin★ 11,367Kotlin
79/100B
2.7967 / 1,90514.5s2mo ago
437libre-tube/LibreTube★ 12,341Kotlin
79/100B
2.9157 / 1,6652.1s2mo ago
438signalapp/Signal-Android★ 0Kotlin
79/100B
2.413,686 / 44,133-2mo ago
439mihonapp/mihon★ 22,255Kotlin
79/100B
2.6727 / 3,0213.7s2mo ago
440maxgoedjen/secretive★ 8,702Swift
79/100B
2.563 / 2021.3s2mo ago
441palmier-io/palmier-pro★ 12,049Swift
79/100B
4.3616 / 3,0623.0s2mo ago
442manaflow-ai/cmux★ 0Swift
79/100B
4.08,169 / 53,982-2mo ago
443microsoft/winget-cli★ 26,232C++
79/100B
2.04,765 / 7,1837.5s2mo ago
444TheAlgorithms/C-Plus-Plus★ 34,519C++
79/100B
2.8181 / 1,9022.0s2mo ago
445huihut/interview★ 38,071C++
79/100B
3.327 / 1551.9s2mo ago
446opencv/opencv★ 90,134C++
79/100B
3.315,493 / 50,4851m 43s2mo ago
447microsoft/terminal★ 104,343C++
79/100B
2.32,355 / 4,12011.0s2mo ago
448chef/chef★ 8,223Ruby
79/100B
3.24,760 / 7,0435.4s2mo ago
449opf/openproject★ 0Ruby
79/100B
2.415,382 / 38,756-2mo ago
450sidekiq/sidekiq★ 13,553Ruby
79/100B
2.6546 / 1,1111.3s2mo ago