jsleak: uncover secrets and links in JavaScript files or source code


It is an easy-to-use command-line tool designed to uncover secrets and links in JavaScript files or source code. The jsleak was inspired by Linkfinder and regexes are collected from multiple sources.


  • Discover secrets in JS files such as API keys, tokens, and passwords.
  • Identify links in the source code.
  • Complete Url Function
  • Concurrent processing for scanning of multiple Urls
  • Check the status code if the url is alive or not

To Do

  • Scan secret on completeURL with 200 response.
  • Add Version flag.
  • Support scanning local files.
  • Support scanning apk files.
  • Update Regex.
  • Support mulitple user agents.


If you are using old version of golang (go 1.15, 1.16) , use the following command to install jsleak.

go get github.com/channyein1337/jsleak

If you are using latest version of go (1.17+) , use the following command to install.

go install github.com/channyein1337/jsleak@latest


Secret Finder

echo http://testphp.vulnweb.com/ | jsleak -s

Link Finder

echo http://testphp.vulnweb.com/ | jsleak -l

Complete Url

echo http://testphp.vulnweb.com/ | jsleak -e

Check Status

echo http://testphp.vulnweb.com/ | jsleak -c 20 -k

You can also use multiple flags

echo http://testphp.vulnweb.com/ | jsleak -c 20 -l -s

Running with Urls

cat urls.txt | jsleak -l -s -c 30

Source: https://github.com/channyein1337/