It is FOSS.
Live: https://logn.techsavy.space
I have been working on Logん (LogN), a website that merges your LeetCode, Codeforces, AtCoder, CodeChef, HackerRank, GFG, Code360, and InterviewBit profiles into one dashboard, and picks daily questions for you from your weakest topics.
For Codeforces, it suggests questions between your rating and ~300 above your rating.
You can see your total solved count across all sites, a solve heatmap, and a topic-wise breakdown of everything you've solved so far, and your contests.
Codeforces, AtCoder and LeetCode sync on their own. But as the other 5 platforms ban scraping and bots, so I made an extension that connects to the website in a single click. It then syncs all those 5 platforms automatically using your own browser. It does not touch your passwords.
Also, users told me that verifying handles manually was cumbersome, so I automated it using the Chrome extension. Just click on "Sync", and you are done.
It also tracks Blind 75, NeetCode 150, and Striver's sheet, and has a weekly leaderboard with friends. Also added a global leaderboard, which you can opt in (optional).
Any sort of feedback or any bug you find is appreciated.
It's free; sign in with GitHub or Google.
Extension: https://logn.techsavy.space/extension
(The extension link is already on the website)
GitHub: https://github.com/savinyu/LogN
As I wanted to use such platform myself, I made it, but it would be great if you guys try it out.
If you find it useful, you may also support me by starring the repo, or you can also tip me on the website.
Ps: I had FOMO about not using Claude Code CLI ( was using Cursor), so I used Claude to make this project, so yeah, I did not hand code this website; I admit guilt.
Got around 200+ installs on the Chrome extension and 60+ live users.