Description
Ucoin Helper
Ucoin Helper is a lightweight browser extension that enhances the experience of using uCoin.net
— a popular platform for managing and browsing coin collections.
Originally created for personal use, this extension may also be helpful to other collectors who want faster navigation, easier catalog access, and more powerful filtering on uCoin.
⭐ Key Features
📋 Enhanced Table View
Adds catalog numbers directly to the coin list tables
Makes it easier to browse, sort, and manage your collection
🎯 Advanced Filtering for Exchange Lists
Adds multi-criteria and multi-value filtering
You can filter by several countries, years, or other fields simultaneously
Built on top of uCoin’s own filtering logic, just more intuitive
🧩 Seamless Native Integration
All enhancements are built directly into the existing uCoin interface
The extension only augments native functionality — nothing is replaced or overridden
🔐 Privacy and Security
Your privacy is fully respected:
✅ No data is collected, transmitted, or stored
✅ No access to your login credentials, cookies, or personal data
✅ All operations run locally in your browser
✅ Only affects pages under ucoin.net
Read the full privacy policy here:
🔗 https://github.com/dubilyer/Ucoin-Helper/blob/main/privacy.md
⚙️ Technical Details
Developed using Manifest V3
Modifies the DOM of uCoin pages to insert visual enhancements
Uses minimal permissions:
tabs
activeTab
scripting
storage
host_permissions for https://*.ucoin.net/*
Tested in modern Chrome-based browsers.
🧪 How to Use
Visit ucoin.net
The extension automatically enhances the interface:
Adds catalog numbers to tables
Enables improved filtering tools
Works only when relevant content is detected (no UI clutter)
📦 Installation (Developer Mode)
To try it locally:
Download or clone the repository from GitHub
🔗 https://github.com/dubilyer/Ucoin-Helper?tab=readme-ov-file
Open Chrome and navigate to chrome://extensions
Enable Developer Mode
Click "Load unpacked"
Select the folder containing the extension files
You’re ready to go!
💡 Open Source
This extension is fully open source and licensed under the MIT License
Explore the code, suggest improvements, or fork your own version:
🔗 GitHub Repository: https://github.com/dubilyer/Ucoin-Helper
📌 Disclaimer
This is a personal helper tool. It is not affiliated with or endorsed by uCoin.net.
Use at your own discretion.
Reviews
Loading reviews...
Permissions (4)
Permissions
activeTabℹ Can access the current tab when you click the extension scriptingℹ Can inject scripts into web pages storageℹ Can store data locally in your browser tabsℹ Can see your open tabs and their URLs
Details
| Version | 1.0 |
| Updated | Sep 12, 2025 |
| Size | 414KiB |
| First Seen | Mar 22, 2026 |
Popular in fun
Custom Cursor for Chrome™
by BLife Team LLC
5M
★ 4.67
fun
5M
★ 4.67
fun
Google Meet Enhanced Experience
by niritshlif
1M
★ 3.36
fun
1M
★ 3.36
fun
SuperNova SWF Enabler
by Tactics Technology LLC
400K
★ 2.04
fun
400K
★ 2.04
fun
Custom Cursor Trails
by BLife Team LLC
300K
★ 4.30
fun
300K
★ 4.30
fun
Cursor Style – Custom Mouse Cursors & Trails for Chrome™
by Oleksii Semeniuk
200K
★ 4.79
fun
200K
★ 4.79
fun
Popular Extensions
Adobe Acrobat: PDF edit, convert, sign tools
by Adobe Inc.
330M
★ 4.40
workflow
330M
★ 4.40
workflow
Chrome Remote Desktop
by Chrome Remote Desktop Release Managers
38M
★ 3.14
workflow
38M
★ 3.14
workflow
Cisco Webex Extension
by cisco.chromestore
24M
★ 2.34
social
24M
★ 2.34
social
Kami for Google Chrome™
by Kami
17M
★ 4.56
education
17M
★ 4.56
education
Read&Write for Google Chrome™
by Texthelp
17M
★ 3.44
accessibility
17M
★ 3.44
accessibility