HackerRank
Real Dev
Daily Coding Problem
CodinGame
Frontloops
Codewars
Code Racer
No nonsense, real world programming challenges

BrowserStack
TestMu AI (Formerly LambdaTest)
Testim
Selenium
CrossBrowserTesting
Katalon
Sauce Labs
Free in-browser Selenium and Playwright compilers, AI test case generators, a Selenium-to-Playwright converter, and hands-on QA practice.

Which is more popular?
Based on our record, hackattic seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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hackattic
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| Website | hackattic.com | tools.codekru.com |
| Pricing | — | |
| Company | — | Startup from India |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of hackattic yet.
CodeKru Tools is a free, browser-based workspace for QA engineers, SDETs and developers who want to run, practice and speed up test automation without installing anything. What you can do Run code online: write and execute Selenium (Java, Python) and Playwright (Java, Python, JavaScript) scripts...
What each product offers, as listed by its team.

Possible disadvantages
Walkthroughs and reviews on video.
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CodeKru Tools Demo: Run Selenium & Playwright Online
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing hackattic and Codekru Tools.
Codekru Tools's answer:
CodeKru Tools brings software testing education, hands-on practice, and developer utilities together in one platform.
Unlike traditional learning websites that primarily offer tutorials, CodeKru lets users apply what they learn through interactive coding assignments, execute Selenium automation directly in their browsers, and use AI-powered tools to generate test cases and test scenarios.
The platform includes online Selenium Java and Python compilers, practical assignments for Selenium, Playwright, and API testing, and AI-powered testing utilities.
Our focus is simple: reduce the gap between learning automation and actually using it, without requiring complicated setups or switching between multiple platforms.
Codekru Tools's answer:
CodeKru Tools is designed for developers and QA engineers who want practical, accessible tools without unnecessary complexity. Instead of just reading tutorials, users can solve real automation challenges, run Selenium scripts directly in their browsers, and get feedback on their solutions. The platform also includes AI-powered test case and scenario generators that help streamline everyday testing activities. What sets CodeKru apart is the combination of structured learning, practical coding exercises, browser-based execution, and AI-assisted testing in one place. Whether you're learning Selenium for the first time or looking to improve your existing testing workflow, CodeKru provides a practical environment to learn, experiment, and build skills.
Codekru Tools's answer:
CodeKru Tools is primarily built for Software Test Engineers, SDETs, QA Automation Engineers, Software Developers, and students learning test automation.
It serves both beginners who want to learn Selenium, Playwright, and API testing through practical exercises, and experienced professionals looking for convenient browser-based automation tools.
The platform is also useful for QA teams that want to generate test cases, explore testing scenarios, practice automation concepts, and improve their testing workflows.
Our goal is to make modern test automation more accessible to anyone interested in software quality and engineering.
Codekru Tools's answer:
CodeKru started from my experience working as a Software Development Engineer in Test (SDET).
After nearly six years in software testing and automation, I noticed a recurring problem: there were plenty of tutorials explaining automation concepts, but relatively few accessible places where engineers could actually practice them.
CodeKru initially started as a technical blog where I shared articles about Selenium, Java, API testing, and automation engineering.
Over time, I wanted to go beyond tutorials and create something more interactive. This led to developing coding assignments, online Selenium compilers, and eventually AI-powered tools for generating test cases and scenarios.
Today, CodeKru is evolving into a comprehensive software testing platform where engineers can learn, practice, execute automation, and access useful developer tools.
I'm building CodeKru with a long-term goal of making practical software testing education and automation tools accessible to developers worldwide.
Share your experience with using hackattic and Codekru Tools. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

I am aware of few of the resources which I've listed down below, will appreciate if you guys can share bit more. - https://hackattic.com/ : Interesting programming Problems. - Source: Hacker News / over 3 years ago
Also check out https://hackattic.com/ it has some really fun problems. - Source: Hacker News / over 4 years ago
What sort of programming would you like to do? Any real world challenges you are looking to solve? For practice “challenges” I really like https://hackattic.com/. Source: over 5 years ago
Tracking Codekru Tools since Oct 2026.
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