18 Free Online Tools - Essential for Work and Study
Generate random passwords
Convert between units
Multi-function calculator
Calculate dates
Countdown timer
Time around the world
Convert timezones
Convert numbers to Chinese
Convert file sizes
Extract from PDF
Visualize data charts
Calculate BMI
Calculate loan payments
Calculate salary and tax
Calculate overtime pay
Pricing for stall sellers
Generate practice grids
Edit Markdown online
JieBang Daily Tools collection provides 18 essential daily tools including password generator, calculator, date calculator, countdown, timezone converter, loan calculator, BMI calculator and more.
A regex tester lets you write and test regular expressions against sample text in real-time, highlighting matches as you type.
Enter the URL, select HTTP method (GET/POST/PUT/DELETE), add headers and body, then click Send. JieBang's API Tester shows the response instantly.
Yes, all JieBang developer tools are 100% free β JSON formatter, Base64 encoder, regex tester, API tester, cron validator, and more.