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LeetFlash

By Lucheng

A simple extension that record your LeetCode performance for everyday.

Time on the storeAbout 3 years or moreA rough range, not an exact date
Store users493As shown on the Chrome Web Store
Chrome Web Store rating5.0 / 53 ratings on the Chrome Web Store
Last store update1 Jun 2026Version 3.0.4, 4 months ago

Inside the extension

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Permissions & access

Access levelMedium

Can watch the web traffic your browser sends, plus 1 more sensitive permission.

What it’s allowed to do, not what it actually does. Not a safety rating.

Permissions 5

Sensitive2

  • Watch the web traffic your browser sendswebRequest
  • Follow every page you openwebNavigation

Standard3

  • Save its own settingsstorage
  • Work on the tab you click it onactiveTab
  • Show desktop notificationsnotifications

Members also see when a new version asks for new access.

Website access 2

  • leetcode.com and its subdomains
  • leetcode.cn and its subdomains
Extension ID
gffjifokdnkmfcjihfgnalbabnghedjc
Package size
312KiB
Manifest
Version 3

The maker

This is the only listing we know of from Lucheng.

Listings
1
Combined store users
≈493
Store Featured
1

Combined users can count the same person more than once. Maker profile

Ext Watch AI

Should you build in this niche?

One research report for LeetFlash. Reports come with Plus, Pro and Max.

  • Takeaway & demandCited takeaway and search volumes
  • Traffic & domainPopularity rank, visits and authority
  • Money & pricingPlans and prices from the maker’s site
  • ReviewsComplaints and praise, quoted
  • Competitors & ranksRank against the closest listings
  • Build opportunityWhat to build and how to position it
  • Every number shows its source and date
  • Ready in a minute or two
  • Report and PDF yours for 30 days
Overview
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