
HackerRank
CodeSignal
Codility
iMocha
HackerEarth
TestDome
mettl
The industry-proven platform to assess and grow tech talent

DevTools Advanced
FullStackToolkit
DevFinanceTools
JSON Formatter & Validator
AllDevToolsHub
Boop
DeveloperTools.Tech
120 free browser-based developer utilities. No sign-up required.

Which is more popular?
Based on our record, DevSkiller seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | devskiller.com | devtoolstack.io |
| Pricing | ||
| Company | Startup from Poland · 10 - 19 employees · 2012 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


DevSkiller TalentScore is the most realistic technical screening solution on the market. TalentScore is powered by theRealLifeTesting™ methodology which helps you assess technical skills with razor-sharp precision and provide outstanding candidate experience at the same time. Candidates are...
No description of DeveloperToolStack yet.
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
DevSkiller is particularly recommended for HR professionals, technical recruiters, and companies of all sizes that want to enhance their hiring process by integrating a robust technical assessment system. It is also suitable for teams that prioritize real-world coding challenges and want to expedite the recruitment cycle with accurate skill evaluations.
No analysis of DeveloperToolStack yet.
Walkthroughs and reviews on video.
Candidates Test Preview - Devskiller
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using DevSkiller and DeveloperToolStack. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I don't like HackerRank but I have done few https://devskiller.com/ and they are excellent. Source: about 4 years ago
There are websites (https://devskiller.com/, for example) that sell pre-screening tests to companies that hire devs. I know people from all these professions and they take a test when they apply for a position at a new company. I've... Source: over 4 years ago
Two companies that used https://devskiller.com The problems aren't necessarily easy, but they were a holistic direct representation of the required skill set. Source: almost 5 years ago
Tracking DeveloperToolStack since Aug 2026.
When comparing DevSkiller and DeveloperToolStack, you can also consider the following products.

HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
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A collection of developer tools in one place in your browser
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CodeSignal is the leading assessment platform for technical hiring.
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Free, no-signup developer tools for technical SEO: robots.txt, sitemap.xml and .htaccess generators, plus practical guides. Everything runs in your browser.
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Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.
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Free, no-signup calculators for the money side of building software and freelancing
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