LeetCard icon

LeetCard

by Kubicle LLC · leetcard.app · Education
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Take notes on LeetCode problems and sync them across all your devices.

Users
21
+3 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
3
0 in 30 days
Store rank
#147K
#123K among extensions
Version
1.0.1
updated 8 Apr 2026

Users

monthly, 8 months
01021Mar 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 21 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months
023Mar 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 3 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About LeetCard

LeetCard is a side panel extension that lets you take notes and save code solutions while solving LeetCode problems. Open the side panel on any LeetCode problem page and start writing - your notes and code sync instantly to your LeetCard account across all platforms (iOS, Android, Web).

Growth

WindowUsersChangeRatingsRating
7 days+2+10.5%00.00
30 days+3+16.7%00.00
6 months+13+162.5%00.00

Version history

2 versions recorded
1.0.18 Apr 2026
1.0.05 Mar 2026

Details

Category
Education
First seen
5 Mar 2026
Size
511 KB
Languages
en-US
Pricing
Free
Privacy policy
docs.kubicle.studio
Support
leetcard.app
Extension ID
embdjjfchgehglopbmdhnligkcpjilei

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
sidePanelidentitytabs

Alternatives to LeetCard

Extensions that rank for the same store searches or share the Education category, ordered by users
Google Translate38M users · 3.0 ★ · 44,852 ratings Kami for Google Chrome™17M users · 3.8 ★ · 8,398 ratings Gopher Buddy for Gopher for Chrome Premium9M users · 1.4 ★ · 20 ratings EndNote Click7M users · 2.1 ★ · 379 ratings i-Ready LockDown Browser7M users · 1.3 ★ · 58 ratings Equatio - Math made digital5M users · 2.5 ★ · 640 ratings Promethean® Screen Share3M users · 3.0 ★ · 61 ratings Eduphoria LockDown Browser3M users · 1.6 ★ · 43 ratings