
LeetCode
Codility
CodeSignal
iMocha
HackerEarth
Codewars
TestGorilla
HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

SpiderOak
Duplicati
rsync
Online Vault Backup
Seafile
Rebel Backup
Mega
Duplicity backs directories by producing encrypted tar-format volumes and uploading them to a remote or local file server.

Which is more popular?
Based on our record, HackerRank should be more popular than Duplicity. It has been mentioned 67 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | hackerrank.com | duplicity.gitlab.io |
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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
HackerRank is recommended for students, individual learners, and job seekers looking to improve their coding skills, as well as for companies seeking an efficient way to evaluate candidates' technical abilities during the hiring process.
Overall verdict
Why this product is good
Recommended for
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 HackerRank and Duplicity. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
HackerRank’s challenges cover a wide range of topics and difficulty levels, allowing developers to enhance their problem-solving skills and learn new algorithms and data structures. The competitive nature of...
HackerRank offers a wide array of challenges across various domains such as algorithms, mathematics, SQL, and functional programming. Its interface is user-friendly, and the platform provides detailed feedback on...
Duplicity is a free open source, secure and bandwidth-efficient backup tool based on rsync. It creates encrypted backups of directories in tar-format archives and backs them on the local or remote machine over SSH....
Recommendations tracked on public social media and blogs since March 2021.


This way, you transfer what you already know (problem-solving) but only change the syntax. Platforms like Hackerrank are also great to solve the same problem in different languages and learn from other people’s solutions. - Source: dev.to / about 1 year ago
Firstly, solve some common data structure problems with it. Implement some data structures like arrays, linked lists, stacks, queues, etc. You can check common problems on LeetCode, Hackerank or some other resources. - Source: dev.to / over 2 years ago
I don't have a consecutive internet connection and I can't keep up learning process so I started practicing in hackerrank.com I have started some challenges in python and c++ there. Thus I have no internet connection so I cannot practice... Source: almost 3 years ago
Other popular choices include borg, duplicity, and duplicati. After evaluating these and others mentioned in the comments, I ended up using borg with borgmatic to define homelab backups with yaml files that are version controlled in... - Source: Hacker News / almost 2 years ago
Overbuilt and OTT? Sure... But this works fantastically for my use case. I have current backups of everything except my media library because of the size of it; my VM's are all backed up to my Synology nightly using Backy2, my... Source: over 3 years ago
There are some backup tools in this thread. Duplicati, rsync, restic, Duplicity, Syncthing. Source: over 3 years ago
When comparing HackerRank and Duplicity, you can also consider the following products.

Practice and level up your development skills and prepare for technical interviews.
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SpiderOak makes it possible for you to privately store, sync, share & access your data from everywhere.
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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 backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.
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CodeSignal is the leading assessment platform for technical hiring.
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rsync is a file transfer program for Unix systems. rsync uses the "rsync algorithm" which provides a very fast method for bringing remote files into sync.
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