New Tools

Fund Historical NAV Lookup

Free online tool to look up historical mutual fund NAVs and instantly calculate period returns. Track your investment performance fast.

Mutual Fund Data Lookup

Enter a mutual fund ticker symbol to instantly check its net asset value (NAV), fund category, manager, and other essential data.

UnionPay Card Account Type Checker

Free online UnionPay card checker. Instantly identify card types (debit, credit, prepaid) using the first 6-digit BIN. Fast, secure, and accurate.

Flight Information Lookup

Check flight schedules, real-time updates, delays, and cancellation information to help you plan your departure and airport pickup times.

Tourist Attraction Lookup

Enter an attraction name to instantly get opening hours, ticket prices, ratings, and travel guides.

Produce Price Lookup

Check real-time wholesale produce prices across major agricultural markets in China. Compare daily prices to make smart buying, selling, and grocery shopping decisions.

Tender & Bidding Search

Quickly search public tender notices and contract award results nationwide. Supports multi-dimensional filtering.

Recipe Finder

Enter ingredients or dish names to quickly find matching recipes, step-by-step instructions, and ingredient lists.

Geometric Mean Calculator

Input a set of positive numbers, one-click calculation of geometric mean, commonly used for average growth rate, investment return and other scenarios.

Online JSON to TOML Converter

Quickly convert JSON data to TOML format. A free online tool perfect for migrating configuration files.

Weighted Average Calculator

Quickly calculate the weighted average by entering values and their corresponding weights. Supports unlimited data sets.

Harmonic Mean Calculator

Free online harmonic mean calculator. Easily calculate the harmonic mean of positive numbers for average speed, exchange rates, and financial data.

Average Calculator

Enter a set of numbers to quickly calculate the arithmetic mean, sum, and count.

Prime Factorization Calculator

Enter any positive integer to instantly calculate its prime factorization. Get prime number verification and detailed step-by-step results with this free online calculator.

Fraction Simplifier

Free online fraction simplifier. Enter the numerator and denominator to instantly reduce fractions to their simplest form and see the step-by-step GCD calculation process.

Placeholder Image Generator

Quickly generate custom placeholder images with specific sizes, colors, and text. Perfect for web prototyping, documentation, and frontend development.

Car Insurance Quote Calculator (2026)

Quickly estimate your annual car insurance premiums, including mandatory and commercial coverage. Enter your car's value and claim history for a fast, accurate reference.

Car Purchase Tax Calculator (2026)

Enter the new car's invoice price and instantly calculate 2026 vehicle purchase tax and total landed cost

Consumer Loan Calculator

Enter the loan amount, interest rate, and term to quickly calculate monthly payments and total interest on consumer loans.

Country & Language Code Reference

Look up standard language codes for countries, searchable by Chinese or English name, to quickly find codes like zh-CN and en-US.