Table of Contents


CredSweeper is a tool to detect credentials in any directories or files. CredSweeper could help users to detect unwanted exposure of credentials (such as personal information, token, passwords, api keys and etc) in advance. By scanning lines, filtering, and using AI model as option, CredSweeper reports lines with possible credentials, where the line is, and expected type of the credential as a result.

How To Use

Main Requirements

  • Python3.7 or higher


Via pip

Stable (release 1.0.0):

$ pip install git+[email protected]

Latest (current master branch):

$ pip install git+

Via git clone (dev install)

$ git clone
$ cd CredSweeper
$ pip install -qr requirements.txt


Get all argument list:

$ python -m credsweeper --help

usage: python -m credsweeper [-h] --path PATH [PATH ...] [--rules [PATH]] [--ml_validation] [--api_validation] [-j POSITIVE_INT] [--skip_ignored] [--save-json [PATH]] [--log LOG_LEVEL]

optional arguments:
  -h, --help            show this help message and exit
  --path PATH [PATH ...]
                        file or directory to scan
  --rules [PATH]        path of rule config file (default: credsweeper/rules/config.yaml)
  --ml_validation       ml validation option on
  --api_validation      api validation option on
                        number of parallel processes to use (default: number of CPU cores * 2)
  --skip_ignored        parse .gitignore files and skip credentials from ignored objects
  --save-json [PATH]    save result to json file (default: output.json)
  --log [LOG_LEVEL]     set logging level. Example --log debug, (default: 'warning'), 
                          detailed log config: credsweeper/secret/log.yaml 

Get output as JSON file:

$ python -m credsweeper --ml_validation --path tests/samples/password --save-json output.json
rule: Password / severity: medium / line_data_list: [line : 'password = "cackle!"' / line_num : 1 / path : tests/samples/password / entropy_validation: False] / api_validation: NOT_AVAILABLE / ml_validation: VALIDATED_KEY
$ cat output.json
        "rule": "Password",
        "severity": "medium",
        "line_data_list": [
                "line": "password = \"cackle!\"",
                "line_num": 1,
                "path": "tests/samples/password",
                "entropy_validation": false
        "api_validation": "NOT_AVAILABLE",
        "ml_validation": "VALIDATED_KEY"

Get CLI output only:

$ python -m credsweeper --ml_validation --path tests/samples/password
rule: Password / severity: medium / line_data_list: [line : 'password = "cackle!"' / line_num : 1 / path : tests/samples/password / entropy_validation: False] / api_validation: NOT_AVAILABLE / ml_validation: VALIDATED_KEY


To run all tests:

$ python -m pytest --cov=credsweeper --cov-report=term-missing -s tests/

To run only tests independent from external api:

$ python -m pytest -m "not api_validation" --cov=credsweeper --cov-report=term-missing -s tests/


We have a dataset for testing credential scanners that called CredData. If you want to test CredSweeper with this dataset please check here.

Overall Architecture

To check overall architecture of CredSweeper please check here.


The CredSweeper is an Open Source project released under the terms of MIT License V2.

How to Get Involved

In addition to developing under an Open Source license, A use an Open Source Development approach, welcoming everyone to participate, contribute, and engage with each other through the project.

Project Roles

A recognizes the following formal roles: Contributor and Maintainer. Informally, the community may organize itself and give rights and responsibilities to the necessary people to achieve its goals.


A Contributor is anyone who wishes to contribute to the project, at any level. Contributors are granted the following rights, to:

  • Contribute code, documentation, translations, artwork, and etc.
  • Report defects (bugs) and suggestions for enhancement.
  • Participate in the process of reviewing contributions by others.

Contributors are required to:

  • Receive the approval of the maintainer to contribute and reflect changes.
  • Assume responsibility for issues and bugs introduced by one’s own contributions.
  • Provide constructive advice whenever participating in discussions and in the review of contributions.
  • Check code formatting before commit. The CredSweeper use yapf and to automate code formatting, run commands below.

    pip install pre-commit
    pre-commit install

Contributors who show dedication and skill are rewarded with additional rights and responsibilities. Their opinions weigh more when decisions are made, in a fully meritocratic fashion.


A Maintainer is a Contributor who is also responsible for knowing, directing and anticipating the needs of a given a Module. As such, Maintainers have the right to set the overall organization of the source code in the Module, and the right to participate in the decision-making. Maintainers are required to review the contributor’s requests and decide whether to accept or not.

Name E-Mail
Jaeku Yun [email protected]
Shinhyung Choi [email protected]
Yujeong Lee [email protected]
Oleksandra Sokol [email protected]

How to Contact

Please post questions, issues, or suggestions into Issues, This is the best way to communicate with the developer.


View Github