Utilities

Generate and export LaTeX mathematical formulas in real-time

Create custom countdowns for important dates or events

Boost productivity and focus with the Pomodoro Technique

Calculate monthly payments, total interest and payment schedule for housing, car and personal loans

Calculate personal income tax and take-home salary from your earnings

Calculate your Body Mass Index (BMI) and assess your weight status

Look up holidays, public vacations and observances for major countries and regions worldwide

Description

Quickly and accurately convert between different currencies and check exchange rates

Generate random names of various types, including different cultural backgrounds and styles

Plan and calculate your travel budget to manage expenses easily

Track your income and expenses with this easy-to-use personal finance tool

Calculate transaction fees for Cash App transfers, deposits, ATM withdrawals, bitcoin transactions, and more based on your account type and payment method.

Generate valid Chinese ID card numbers (Resident Identity Card) for testing purposes

Generate Chinese Unified Social Credit Codes that comply with national standard (GB 32107-2015) for testing and development

Free online fraction comparison calculator, supporting fraction size comparison, common denominator calculation, decimal conversion. Provides visual fraction bar comparison, precise calculation of fraction relationships, supports mixed number and improper fraction conversion

Free online US address generator that creates real-format US addresses, ZIP codes, phone numbers, SSNs, credit card numbers and complete identity profiles. Supports filtering by state/city, exports in JSON/CSV formats, runs entirely in the browser for privacy protection.

Free online HK address generator that creates real-format Hong Kong addresses, ID numbers, phone numbers, credit card numbers and complete identity profiles. Supports district filtering, JSON/CSV export formats, and runs entirely in the browser for privacy protection.

Free online Taiwan address generator, generating real-format Taiwan addresses, ID numbers, phone numbers, credit card numbers and complete identity profiles. Supports filtering by county/city, exports to JSON/CSV formats, runs entirely in the browser for privacy protection.

Free online Japan address generator that creates authentic Japanese address formats, My Number (Individual Number), phone numbers, credit cards, and complete identity profiles. Filter by prefecture, export to JSON/CSV, runs entirely in-browser for privacy.

Free online Canada address generator. Generate real-format Canadian addresses, postal codes, phone numbers, credit cards and complete identity profiles. Filter by province, export JSON/CSV, runs locally for privacy.

Free online MAC address generator supporting random MAC address generation, vendor OUI prefix selection, and multiple output formats. Perfect for network testing, software development, and IoT device simulation. Runs entirely in browser for privacy.

Free online China address generator that creates realistic mainland China addresses, ID numbers, phone numbers, bank card numbers and complete identity profiles. Filter by province, export to JSON/CSV, runs locally for privacy.

Free online Singapore address generator that creates realistic Singapore addresses, NRIC numbers, phone numbers, credit card numbers and complete identity profiles. Filter by region, export to JSON/CSV, runs locally for privacy.

Free online UK address generator that creates authentic UK address formats, National Insurance Numbers (NINO), phone numbers, credit card numbers and complete identity profiles. Filter by county, export to JSON/CSV, runs locally for privacy.

Free online Korean address generator that creates realistic Korean addresses, ID numbers, phone numbers, credit card numbers and complete identity profiles. Filter by province/city, export to JSON/CSV, runs entirely in browser for privacy.

Free online Australian address generator that generates real format Australian addresses, phone numbers, credit card numbers and complete identity profiles. Filter by state, export to JSON/CSV, runs entirely in the frontend to protect privacy.

Free online Nigeria address generator that creates authentic Nigerian addresses, NIN numbers, phone numbers, credit card numbers and complete identity profiles. Filter by state, export to JSON/CSV, pure frontend for privacy protection.

Free online Germany address generator, generates real-format German addresses, ID numbers, phone numbers, credit card numbers and complete identity profiles. Supports state filtering, JSON/CSV export, runs entirely in frontend to protect privacy.

Free online random IP generator supporting IPv4 and IPv6 addresses, public and private IPs, region-based filtering, batch generation, and multiple export formats. Runs entirely in the frontend for privacy.

Free pure frontend "What to Eat" online decision tool that intelligently recommends dishes based on taste, budget, occasion, weather and dietary preferences. No data upload, protects privacy, helps you decide what to eat anytime, anywhere.