
Codecademy
The Odin Project
edX
Coursera
Treehouse
Khan Academy
Pluralsight
Learn to code by helping nonprofits.

Udemy
TryHackMe
Hack The Box
Cybrary
Cohackers
ControlScan Security Awareness Training services
Coursera
Free hands-on security training: lock picking, RFID, Hak5, Flipper Zero and IoT hardware courses, plus a non-exclusive marketplace where instructors keep 75 to 90% of sales.

Which is more popular?
Based on our record, Free Code Camp seems to be more popular. It has been mentioned 577 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | freecodecamp.org | onlysecurity.com |
| Pricing | — | |
| Company | Startup from the United States | Startup from the United Kingdom · 1 - 9 employees · 2024 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Free Code Camp yet.
OnlySecurity is a practical security training platform built around four things: compete, train, learn and share. For learners - Take hands-on courses in offensive, defensive and physical security, taught by working practitioners and by the companies that make the hardware. Topics include lock...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
No analysis of OnlySecurity yet.
Walkthroughs and reviews on video.
Free Code Camp Review - Is It Worth Your Time?
How to become a trainer on OnlySecurity.com and build your first course
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Free Code Camp and OnlySecurity.
OnlySecurity's answer:
It specialises in hands-on hardware and physical security (locks, RFID, Flipper Zero, Hak5, IoT radio), which most training platforms barely cover, and many of its courses are taught by the companies that make the tools.
OnlySecurity's answer:
Learners can start for free and learn skills they can show, through badges, a leaderboard and a portfolio recruiters can verify. Trainers get a non-exclusive licence and keep 75% to 90% of net sales with processing fees absorbed, where larger marketplaces can pay instructors far less after fees.
OnlySecurity's answer:
Penetration testers, red teamers, physical security assessors, RFID and IoT researchers, and hobbyists learning hardware hacking, plus security practitioners who want to teach and earn from their own courses.
OnlySecurity's answer:
OnlySecurity grew out of KSEC, a UK supplier of security research hardware. Customers kept asking how to get the most out of tools like the Proxmark, Flipper Zero and Hak5 gear, so KSEC started building practical courses alongside the hardware. That became an open platform where practitioners and hardware vendors teach, and where learners compete, train, learn and share.
Share your experience with using Free Code Camp and OnlySecurity. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


freeCodeCamp grants certificates to candidates after they finishing a topic/chapter which can enrich your portfolio However, if you are looking/preparing for jobs, leetcode is better
Free Code Camp is a web development bootcamp that has helped tens of thousands of their graduates find a job at tech companies.
We have no reviews of OnlySecurity yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


FreeCodeCamp Freecodecamp.org Free coding tutorials, including responsive design and JavaScript. - Source: dev.to / over 1 year ago
Freecodecamp provides 10+ free web development courses in JavaScript, Python, front-end, and back-end that are more than enough to kickstart any developer's career. You learn through interactive coding exercises and articles, and can... - Source: dev.to / over 2 years ago
Don't do bootcamp. Start with something like https://freecodecamp.org and take a few lessons. Try to build something from that and see how motivated you are. If you see some progress and this thing still excites you, then may be find an... - Source: Hacker News / almost 3 years ago
Tracking OnlySecurity since Oct 2026.
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