The Simple Way to Save Time, Save Money, and Solve Problems
Seller4S focuses on providing simple and efficient tool solutions for cross-border e-commerce sellers.
Making complex problems simple, and expensive solutions affordable.
Our Products
Available Features
选择功能
我们提供 3 个强大的工具来帮助您
Amazon Product Hijacking Monitor
Monitor your Amazon product hijacking in real-time, detect and handle hijackers immediately, protect your product rights
ASIN Monitoring
Enter Amazon ASIN to monitor product hijacking in real-time, automatically detect new hijackers
- ✓ Add multiple ASINs for batch monitoring
- ✓ Real-time seller detection and tracking
- ✓ View monitoring history and seller changes
Email Alerts
Receive instant email notifications for both new hijackers and blacklisted sellers, never miss any important alerts
- ✓ Instant email alerts when new sellers appear on your products
- ✓ Automatic alerts when blacklisted sellers reappear
- ✓ Detailed seller information including name, ID, and price in notifications
- ✓ Direct product link in email for quick access and review
Blacklist Management
Record hijacker seller blacklist, continuously track malicious hijackers
- ✓ Add sellers to blacklist for continuous tracking
- ✓ Automatic alerts when blacklisted sellers reappear
- ✓ Manage and organize your seller blacklist easily
Start Protecting Your Products
Use it right after registration and login, simple and efficient
Register & Login NowFree registration, start using now
Real-time Monitoring
24/7 continuous monitoring, detect hijacking immediately
Save Costs
Simple and efficient tools, no need to buy expensive all-in-one packages
Precise Targeting
Accurately identify hijackers and take quick action
Planify - 个人高效任务管理工具
采用看板式设计，帮助你高效组织工作和生活。完全免费，数据安全存储在本地浏览器，无需注册
看板管理
使用可视化看板组织任务，拖拽管理工作流阶段
- ✓ 创建多个计划并自定义列（Bucket）
- ✓ 在列之间拖拽任务，拖拽列来重新排序
- ✓ 设置任务优先级（低、中、高、紧急）和截止日期
- ✓ 添加任务描述，标记任务为完成并跟踪进度
工作法模板
快速开始，使用经过验证的生产力方法论
- ✓ GTD 工作法 - 收集箱、下一步行动、等待中、已完成
- ✓ 番茄工作法 - 今日任务、进行中、已完成
- ✓ 艾森豪威尔矩阵 - 重要且紧急、重要不紧急、紧急不重要、不重要不紧急
数据安全
所有数据存储在浏览器本地，完全私密安全，无需担心数据泄露
- ✓ 数据存储在本地浏览器，不会上传到服务器
- ✓ 无需注册账号，无需提供任何个人信息
- ✓ 完全免费使用，永久免费
可视化工作流
通过直观的看板一目了然地查看整个项目
快速开始
使用模板或几分钟内创建自定义计划
数据安全
所有数据存储在本地浏览器，完全私密安全
Profit Calculator
Calculate product profit, costs, and margins. Support multi-currency conversion and batch calculation via Excel import.
Single Product Calculation
Calculate profit for a single product with detailed cost breakdown
- ✓ Input selling price, product cost, shipping, and platform fees
- ✓ Support multi-currency conversion (USD, CNY, EUR, GBP, JPY)
- ✓ Real-time calculation of profit and profit margin
Batch Calculation
Calculate profit for multiple products at once via Excel import
- ✓ Import Excel file with product data
- ✓ Download template with example data
- ✓ Export results to Excel for further analysis
Start Calculating Your Profits
Free tool, no registration required. Calculate profit instantly.
Use NowFree to use, no registration required
Multi-Currency
Support USD, CNY, EUR, GBP, JPY with real-time exchange rates
Fast & Accurate
Calculate profit instantly with accurate cost breakdown
Batch Processing
Process hundreds of products at once via Excel
Are These Problems Wasting Your Time and Money?
Tedious Bulk Listing
Manually handling product information for different platforms and specifications is time-consuming and error-prone. Every new product launch is a nightmare.
Useless Data Analytics
Big platform data looks good but isn't actionable. The detailed data that really affects orders is nowhere to be found.
Expensive "All-in-One" Packages
Having to buy entire SaaS packages for just one or two core features, with high costs but most functions unused.
...This is just the beginning. You must have more specific frustrations.
Simple is Better
Seller4S believes the best solutions should be simple, affordable, and effective.
We focus on saving your time through automation and smart tools that reduce repetitive work.
We are committed to saving your money by providing the most cost-effective solutions.
We promise to solve your problems by making complex business processes simple and efficient.
Tell Us, What Problem Do You Most Want to Solve?
🎁 Feedback Benefits
- ✓ Priority access to beta test new features and experience the latest tools first
- ✓ Become a product advisor and participate in product decisions and planning
- ✓ Get exclusive discounts or free access
- ✓ Priority one-on-one technical support
- ✓ Showcase your success story on our website (optional)