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    0.1.6 • Public • Published

    Jest Coverage Badges ts

    Create a group of coverage badges for your github repository.


    Creates a group of code coverage badges like the following:

    Coverage badge gree Coverage badge gree Coverage badge gree

    Currently just reads from Istanbul's JSON summary reporter and downloads a badge from for each jest coverage type (statement, branch, functions, lines). Like this:

    Coverage lines Coverage functions Coverage branches Coverage statements

    This package is a fork of jest-coverage-badges, getting rid of outdated packages and written with typscript.


    1. Install jest-coverage-badges-ts in your project or global

      Project (in your project folder):

    npm install --save jest-coverage-badges-ts yarn add --dev jest-coverage-badges-ts


    npm install --global jest-coverage-badges-ts yarn global add jest-coverage-badges-ts

    1. Configure Jest (in package.json):

      (optional: "text" and "lcov")

      "jest": {
        "coverageReporters": [

      If you installed in your project, you can create a script to run it, for example:

      "scripts": {
        "test:coverage": "npm test -- --coverage",
        "test:badges": "npm run test:coverage  && jest-coverage-badges-ts"
    2. Run npm test -- --coverage

    3. Run jest-coverage-badges-ts (or just run: npm run test:badges)

      Resulting in badges:

      • ./coverage/badge-statements.svg
      • ./coverage/badge-lines.svg
      • ./coverage/badge-functions.svg
      • ./coverage/badge-branches.svg

    CLI Options

    • input [default: ./coverage/coverage-summary.json] - the file (and its path) of the summary json that contains the coverage data
    • output [default: ./coverage] - the path to the directory where the svg files will be placed after download. If path doesn't exist it will be created.

    $ jest-coverage-badges --input "./cov" --output "./badges"

    After this you can add into Github readme (for example) 😃

    Why use this package?

    We have great companies like coveralls and codecov, but it's paid for private repositories. If this package we can add badges in our readme by creating the badges (this can be run at your build, upload to a store and consume in the readme or the website).

    Author of adaptation of (make-coverage-badge)

    © 2021 [Main Author of Adaptations] Christophe Bellec (
    © 2018 [Main Author of Adaptations] Pamela Peixinho (


    npm i jest-coverage-badges-ts

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    • christophe77