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expressjs/express

191 files 10 languages 26,264 total lines @f873ac2 analysed just now
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01Overview

express · 19,896 lines of actual code
191
Files
19,896
Code lines
1,820
Comments
10
Languages
470
Complexity
0
Secrets
Line Composition 26,264 total lines
Code19,89675.8%
Blank4,54817.3%
Comments1,8206.9%
~99%
tokens saved
Reading expressjs/express via an LLM
~139k tokens → ~1.4k tokens via code_analyze

The entire repo summarised by code_analyze — structured JSON in <2k tokens. The dossier above is built from one call. Drill into specifics with code_search.

02Languages & Tech Stack

what it’s written in, what it depends on

Language Breakdown

Language
Files
Code
Share
JavaScript
141
15,804
79.4%
Markdown
4
3,503
17.6%
YAML
6
278
1.4%
JSON
1
99
0.5%
Handlebars
3
71
0.4%
HTML
8
44
0.2%
CSS
4
44
0.2%
License
1
20
0.1%
Plain Text
11
13
0.1%
+ 1 more
—
7
·

Tech Stack  (9 detected)

Express.js 101 Supertest 80 Node.js Path 22 Lodash 9 Node.js HTTP 6 Node.js File System 5 Node.js OS 5 Expo 2 Node.js Events 1

03Notable Files

where complexity and size live

Most Complex

FileLinesCx
lib/response.js475110
lib/application.js26236
lib/request.js15423
test/app.render.js31421
lib/utils.js12017
test/express.raw.js43215
examples/auth/index.js8815
lib/view.js9014
test/express.urlencoded.js70113
test/app.router.js93912

Largest

FileLinesCx
History.md3,2700
test/app.router.js93912
test/res.sendFile.js8661
test/express.urlencoded.js70113
test/express.static.js6863
test/express.json.js64010
test/Router.js50512
test/express.text.js4787
lib/response.js475110
test/res.send.js4483

04Code Quality

style, correctness, and maintainability findings

By Severity & Category

Warning
1
Info
2032
Error
2
Total
2,035
By Category
accessibility 8 correctness 2023 maintainability 1 performance 1 security 2

Top Findings

Avoid due to security risks; use safer alternatives like JSON.parse or function constructors ×2
test/res.redirect.js:115 + 1 more
Remove event listeners when no longer needed to prevent memory leaks
examples/search/public/client.js:6
Use let or const to avoid scope issues and hoisting ×2
examples/auth/index.js:7 + 1 more

05Secrets & Credentials

pattern-based scan for hardcoded secrets
✓   No hardcoded credentials or secret patterns detected. Pattern-based scan only — does not catch logic-level vulnerabilities.

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