免费工具
与「免费工具」相关的在线工具合集，共 9 个，浏览器打开即用，无需下载安装。
Age Calculator
Enter your birth date to instantly calculate your exact age in years, months and days.
Date Difference in Days
Enter two dates to instantly calculate the number of days between them, supports multiple formats.
BMI Calculator
Use our free BMI calculator to quickly compute your body mass index and assess your health.
Fibonacci Sequence
Free online Fibonacci generator, produces the first N terms with support for large numbers.
CRC32 Checksum
Free online CRC32 Checksum. Runs entirely in your browser, no data uploaded, ready to use.
Logarithm Calculator
Free online Logarithm Calculator. Runs entirely in your browser, no data uploaded, ready to use.
Pressure Unit Converter
Free online Pressure Unit Converter. Runs entirely in your browser, no data uploaded, ready to use.
Body Fat Calculator
Free online Body Fat Calculator. Runs entirely in your browser, no data uploaded, ready to use.
English Essay Polisher
Free online English essay polishing tool. Paste your English essay, AI polishes the full text, provides a 10-point score, key issues, and improvement suggestions. Essential for English learning.
