
HackerRank
Project Euler
Codewars
Exercism
CodeForces
interviewing.io
Coderbyte
Practice and level up your development skills and prepare for technical interviews.

Matrix.org
Telegram
Signal
Discord
Tox
Slack
WhatsApp
Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.

Which is more popular?
Based on our record, LeetCode seems to be a lot more popular than Element.io. While we know about 544 links to LeetCode, we've tracked only 1 mention of Element.io.
Website, pricing, platforms and company facts side by side.
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| Website | leetcode.com | about.riot.im |
| Pricing | ||
| Company | — | Startup from the United Kingdom |
| Listed in |
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
Overall verdict
Why this product is good
Recommended for
Element.io is highly recommended for privacy-conscious users, open-source enthusiasts, tech-savvy individuals, organizations seeking secure internal communication channels, and communities needing decentralized and customizable messaging solutions.
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


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


LeetCode is a renowned online platform offering a compendium of coding challenges that enable software developers to sharpen their programming prowess, facilitating their preparation for technical interviews. This...
What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
In the quest for coding excellence, developers often seek platforms that not only challenge their skills but also make the learning process engaging and fun. While Leetcode has been a staple in the coding community...
You can get Element for both desktop and mobile, with apps being made available for Linux, Android, Windows, iOS, and macOS. There is also Element web if you don't prefer installing apps.
Element is a secure messaging and communication software that operates based on the Matrix protocol. It has advanced features that promote internal collaboration and boost team productivity. It offers end-to-end...
Element.io, which was earlier known as Riot, is a secure chat app that is built around protecting user privacy. It offers end-to-end encryption out of the box, which means that your conversations are fully encrypted...
Recommendations tracked on public social media and blogs since March 2021.


General Coding Assessment (GCA): the harder of the two, but manageable with preparation. It's done on CodeSignal, either in person or online. To prepare, practice DSA questions on competitive programming sites like LeetCode, Codewars,... - Source: dev.to / about 1 month ago
Category Tool URL How I used it General AI assistant ChatGPT Https://chatgpt.com Breaking down concepts, simulating interviewers, reviewing answers AI writing / reasoning Claude Https://claude.ai Refining behavioral stories and... - Source: dev.to / 4 months ago
Plain BST. Fine when input is random or the problem doesn't require worst-case guarantees. Tree problems on LeetCode typically assume balanced input and don't ask you to maintain balance yourself. - Source: dev.to / 4 months ago
I love how Matrix or its most popular client Element do not even get a mention. Source: over 3 years ago
The title undersells the change a bit in my opinion. By default, mastodon now encourages new users to sign-up on https://mastodon.social which has caused a bit of a kerfuffle in the fediverse. Personally, I'm largely ambivalent to the... - Source: Hacker News / over 3 years ago
We currently have the Matrix protocol, with client applications such as Element supporting it. We also have XMPP as another option. Generally more modern than IRC, these platforms are primarily developed as FOSS software. This makes it... Source: over 3 years ago
When comparing LeetCode and Element.io, 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 LeetCode or Element.io:

Matrix is an open standard for decentralized persistent communication over IP.
Compare Matrix.org to LeetCode or Element.io:

Project Euler is a series of challenging mathematical/computer programming problems that will...
Compare Project Euler to LeetCode or Element.io:

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Compare Telegram to LeetCode or Element.io:


Fast, simple & secure messaging. Privacy that fits in your pocket.
Compare Signal to LeetCode or Element.io: