Get Advice Icon

Need advice about which tool to choose?Ask the StackShare community!

Grunt
Grunt

3.6K
2.4K
+ 1
713
Karma
Karma

489
313
+ 1
175
Add tool

Grunt vs Karma: What are the differences?

Developers describe Grunt as "The JavaScript Task Runner". The less work you have to do when performing repetitive tasks like minification, compilation, unit testing, linting, etc, the easier your job becomes. After you've configured it, a task runner can do most of that mundane work for you鈥攁nd your team鈥攚ith basically zero effort. On the other hand, Karma is detailed as "Spectacular Test Runner for JavaScript". Karma is not a testing framework, nor an assertion library. Karma just launches a HTTP server, and generates the test runner HTML file you probably already know from your favourite testing framework. So for testing purposes you can use pretty much anything you like.

Grunt and Karma are primarily classified as "JS Build Tools / JS Task Runners" and "Browser Testing" tools respectively.

"Configuration " is the primary reason why developers consider Grunt over the competitors, whereas "Test Runner" was stated as the key factor in picking Karma.

Grunt and Karma are both open source tools. Grunt with 11.9K GitHub stars and 1.55K forks on GitHub appears to be more popular than Karma with 10.7K GitHub stars and 1.61K GitHub forks.

Starbucks, Bodybuilding.com, and PedidosYa are some of the popular companies that use Grunt, whereas Karma is used by Sellsuki, Coderus, and Repro. Grunt has a broader approval, being mentioned in 794 company stacks & 421 developers stacks; compared to Karma, which is listed in 119 company stacks and 57 developer stacks.

What is Grunt?

The less work you have to do when performing repetitive tasks like minification, compilation, unit testing, linting, etc, the easier your job becomes. After you've configured it, a task runner can do most of that mundane work for you鈥攁nd your team鈥攚ith basically zero effort.

What is Karma?

Karma is not a testing framework, nor an assertion library. Karma just launches a HTTP server, and generates the test runner HTML file you probably already know from your favourite testing framework. So for testing purposes you can use pretty much anything you like.
Get Advice Icon

Need advice about which tool to choose?Ask the StackShare community!

Why do developers choose Grunt?
Why do developers choose Karma?

Sign up to add, upvote and see more prosMake informed product decisions

    Be the first to leave a con
      Be the first to leave a con
      What companies use Grunt?
      What companies use Karma?

      Sign up to get full access to all the companiesMake informed product decisions

      What tools integrate with Grunt?
      What tools integrate with Karma?

      Sign up to get full access to all the tool integrationsMake informed product decisions

      What are some alternatives to Grunt and Karma?
      gulp
      Build system automating tasks: minification and copying of all JavaScript files, static images. More capable of watching files to automatically rerun the task when a file changes.
      Webpack
      A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows to load parts for the application on demand. Through "loaders" modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.
      npm
      npm is the command-line interface to the npm ecosystem. It is battle-tested, surprisingly flexible, and used by hundreds of thousands of JavaScript developers every day.
      Yarn
      Yarn caches every package it downloads so it never needs to again. It also parallelizes operations to maximize resource utilization so install times are faster than ever.
      Gradle
      Gradle is a build tool with a focus on build automation and support for multi-language development. If you are building, testing, publishing, and deploying software on any platform, Gradle offers a flexible model that can support the entire development lifecycle from compiling and packaging code to publishing web sites.
      See all alternatives
      Decisions about Grunt and Karma
      Gustavo Mu帽oz
      Gustavo Mu帽oz
      Web UI Developer at Globant | 4 upvotes 17.3K views
      Parcel
      Parcel
      gulp
      gulp
      Grunt
      Grunt
      Webpack
      Webpack
      #Merge
      #WebPackDevServer

      Using Webpack is one of the best decision ever. I have used to Grunt and gulp previously, but the experience is not the same, and despite I know there are other bundlers like Parcel, Webpack gives me the perfect balance between automatization and configuration. The ecosystem of tools and loaders is amazing, and with WebPack #merge, you can modularize your build and define standard pieces to assemble different build configurations. I don't like processes where you cannot see their guts, and you have to trust in magic a little bit too much for my taste. But also I don't want to reinvent the wheel and lose too much time configuring my build processes. And of course, I love #WebPackDevServer and hot reloading.

      See more
      Interest over time
      Reviews of Grunt and Karma
      Review ofGruntGrunt

      Grunt is all based on configuration. Some of the configuration is well documented, and some pre-built Gruntfiles can be dropped in and work like a charm. But if you are ever in the position where you have to make any changes to your large and complicated Gruntfile, set aside a few days to work on it. The deeper you get into it, the less intuitive you will find it, and the more strange behaviors you will find from plugins with some 'automagical' undocumented configuration or behavior. If you want a build process that you can understand, and that six months from now you will still understand, you are better off using Gulp.

      How developers use Grunt and Karma
      Avatar of IVS
      IVS uses GruntGrunt

      Using ES7 async/await make the whole tooling chain "problem" disappear. No more code - no grunt tasks, no problems. We don't use grunt anymore.

      Avatar of Chris Saylor
      Chris Saylor uses GruntGrunt

      We use it in development for the main application and is responsible for generating the Electron binary artifacts for the client application.

      Avatar of Cian 脫 Cuinneag谩in
      Cian 脫 Cuinneag谩in uses GruntGrunt

      Concat all javascript files, less files plus other work. Then moves all output files to build directory(declared in the build.config file).

      Avatar of Aspire
      Aspire uses GruntGrunt

      Build our client-side app: process and minify LESS, AngularJS, HTML partials, etc.

      Avatar of Giftstarter
      Giftstarter uses GruntGrunt

      We use Grunt to automate some stuff, mostly related to tasks for the the Web App.

      Avatar of Riderman De Sousa Barbosa
      Riderman De Sousa Barbosa uses KarmaKarma

      All services, directives and controllers from angular are tested using Karma.

      Avatar of Ron Apelbaum
      Ron Apelbaum uses KarmaKarma

      I use Karma as a test runner for javascript unit tests

      Avatar of Giovanni Candido da Silva
      Giovanni Candido da Silva uses KarmaKarma

      Run unit and integration tests on real browsers

      Avatar of Glib Ischenko
      Glib Ischenko uses KarmaKarma

      Running Unit tests for Angular UI

      Avatar of Typeform
      Typeform uses KarmaKarma

      Testing frontend of admin part

      How much does Grunt cost?
      How much does Karma cost?
      Pricing unavailable
      Pricing unavailable
      News about Karma
      More news