计算工具 Compound Interest Calculator Estimate future value with periodic compounding and regular contributions.
计算工具 Simple Interest Calculator Calculate simple interest and total amount from principal, rate, and time.
计算工具 Discount Calculator Calculate a sale price and savings from an original price and discount rate.
计算工具 Electricity Cost Calculator Estimate electricity cost from power, usage time, days, and unit price.
计算工具 Percentage Change Calculator Calculate the relative percentage increase or decrease between two values.
学习工具 GCD & LCM Calculator Calculate the greatest common divisor and least common multiple of integers.
音频工具 Audio to WAV Converter Decode a browser-supported audio file locally and export uncompressed WAV.
数据库结构设计器 Database Schema Designer Design multi-table schemas with indexes and foreign keys; export SQL for MySQL, MariaDB, PostgreSQL, SQLite, or SQL Server, plus JSON, documentation, or ER diagrams.
落地页构建器 Landing Page Builder Arrange reusable landing page sections, preview the result, and export a static HTML file.
图表与数据可视化 Chart & Data Visualization Create bar, line, or pie charts from pasted CSV-formatted data or manual values.
可视化工作流构建器 Visual Workflow Builder Arrange predefined text-processing steps into a local workflow, then run or export it.