
HackerRank
CodeSignal
iMocha
HackerEarth
TestGorilla
DevSkiller
mettl
Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.

f.lux
Midnight Lizard
Night Eye
Stylebot
Stylus
Darkness: Beautiful Dark Themes
Amino Editor
Reduce eye strain in your browser with this extension that provides a dark theme for browsing.

Which is more popular?
Based on our record, Dark Reader seems to be a lot more popular than Codility. While we know about 198 links to Dark Reader, we've tracked only 2 mentions of Codility.
Website, pricing, platforms and company facts side by side.
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| Website | codility.com | darkreader.org |
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In their own words, as submitted to SaaSHub.


The Codility platform includes: CodeCheck - Design role-specific remote skills assessments to screen your technical candidates before moving them to the interview stage. CodeLive - Host technical remote or onsite interviews via our shared editor using a range of templates and whiteboards....
No description of Dark Reader 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.


No analysis of Codility yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
An Introduction to Codility: The Tech Hiring Platform for Engineering Teams
Dark Mode for Google Chrome — Dark Reader
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Codility and Dark Reader. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Codility is a platform that helps companies assess the coding skills of developers. They offer a range of online coding tests and assessments that enable employers to evaluate candidates' technical abilities.
I live for dark mode. Anyone who’s worked with me knows how much I reject working in light mode. Seriously, I don’t know how you light-moders stay relaxed with so much brightness. That said, when it comes to browsing...
Using an on-demand dark styles theme generator, this eye-care extensions for google chrome turns on night mode for web pages. Bright color are turned into high contrast, easy-to-read hues at night thanks to Dark Reader.
Dark Reader also provides you with other controls that let you tweak your display however you want. They allow you to change any website’s brightness, contrast, font, and other display elements. You can also store the...
Recommendations tracked on public social media and blogs since March 2021.


- Technical skills: have they got the walk to match the talk? Programming languages on a resume mean little if candidates are unable to demonstrate their hard coding skills. You can test these skills with technical skill tests, such as... - Source: dev.to / over 2 years ago
Codility : Verify and improve coding skills. - Source: dev.to / over 5 years ago
Firefox desktop and mobile let you install addons like https://darkreader.org/ which work great. - Source: Hacker News / 1 day ago
Install Darkreader, enable Light mode https://darkreader.org/ I think most users are capable of that :). - Source: Hacker News / 10 months ago
Yes. There's a reason that https://darkreader.org/ has 10 million+ installs while no inverse extensions even exist to my knowledge. The entire web is already light-mode first and much of it, including your site (no offense) offers zero... - Source: Hacker News / 10 months ago
When comparing Codility and Dark Reader, 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.
Compare HackerRank to Codility or Dark Reader:

f. lux is a piece of software for Windows, Mac, Linux, iOS, and Android that provides a blue light filter over your screen. Research suggests limiting our exposure to blue light in the hours before bedtime can help us fall asleep faster.
Compare f.lux to Codility or Dark Reader:

CodeSignal is the leading assessment platform for technical hiring.
Compare CodeSignal to Codility or Dark Reader:

Accessible color schemes for all websites
Compare Midnight Lizard to Codility or Dark Reader:


Night Eye is a browser extension that enables dark mode on any website you visit. It does not ruin your browsing experience by simply inverting images.
Compare Night Eye to Codility or Dark Reader: