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Blitz vs k6: What are the differences?
Blitz: Load testing for websites, web apps, and REST APIs. Build bulletproof, scalable solutions with Blitz - a simple and fun service for load testing web apps and APIs in the cloud. Blitz offers powerful yet simple capabilities including continuous monitoring, performance testing and remediation. Blitz enables you to instantly burst up to 50,000 concurrent users against your app in seconds from multiple points of presence around the world; k6: Developer centric open-source load and performance testing tool. It is a developer centric open source load testing tool for testing the performance of your backend infrastructure. It’s built with Go and JavaScript to integrate well into your development workflow.
Blitz and k6 can be primarily classified as "Load and Performance Testing" tools.
Some of the features offered by Blitz are:
- Complex transactions- Whether you want to test a web page or a complex transaction , Blitz makes it easy for you to determine the number of users you can support.
- Detailed feedback- Get detailed statistics and feedback in real time, and in plain English
- Plugins- With our extension for Chrome or add-on for Firefox , just navigating to a webpage and run a performance test. Blitz takes care of the cookies, authentication and all the other underlying complexities.
On the other hand, k6 provides the following key features:
- Written in Go and JavaScript, built to integrate well into the modern developer workflow and automation pipelines
- Primarily for load testing, it also works for functional testing of APIs and microservices with its powerful JS ES6 based scripting API
- Straightforward CLI, sharing many UX aspects with the DevOps tools you already use
k6 is an open source tool with 5.57K GitHub stars and 287 GitHub forks. Here's a link to k6's open source repository on GitHub.
Pros of Blitz
- Load testing2
Pros of k6
- Fits nicely in a CI workflow11
- It's code-first10
- Open-source9
- Test scripts are written in javascript8
- Easy to use7
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Cons of Blitz
Cons of k6
- Requires bundling and transpiling to use npm packages2