# Everyday Tools > BMI, bill splitting, unit prices, expenses, mortgage, tax and salary, random pickers, ID photos, white noise and more. - URL: https://qilingtools.com/en/tags/life - Price: Free, no sign-up - Privacy: Runs locally in the browser; files are never uploaded ## Tools (24) - [ID Photo Maker](https://qilingtools.com/en/image/id-photo): Free online ID and passport photo maker: AI replaces the background with white, blue or red, crops to passport, visa and 1-inch sizes at 300dpi, prints a sheet. - [BMI Calculator](https://qilingtools.com/en/bmi): Free online BMI calculator: height and weight give your body mass index, the WHO and Chinese categories, a healthy weight range, plus BMR and daily calories. - [Random Name Picker](https://qilingtools.com/en/random-picker): Free online random name picker: draw winners with no repeats across rounds, pick students at random, split people into balanced groups or shuffle a list. - [China Income Tax Calculator (IIT)](https://qilingtools.com/en/math/income-tax): Free China individual income tax calculator: monthly gross to take-home with social insurance, 2023 deductions, cumulative withholding and annual bonus options. - [Mortgage Calculator](https://qilingtools.com/en/math/mortgage): Free mortgage calculator: monthly payment, fixed-payment vs equal-principal, total interest, taxes and insurance, extra payments and a yearly schedule as CSV. - [Chinese Lunar Calendar](https://qilingtools.com/en/calendar): Free Chinese lunar calendar for 1900–2100: lunar dates, zodiac, stem-branch years, the 24 solar terms with exact times, festivals and a lunar date converter. - [Spin the Wheel](https://qilingtools.com/en/wheel): Free online spinning wheel: add weighted options, spin with a tick sound, see the history, remove winners, use presets, and share a wheel by link. - [Days Until / Days Since](https://qilingtools.com/en/countdown): Free online days-until and days-since counter: add exams, holidays and anniversaries and see a live count to the second, with repeats and a share link. - [Split Bill](https://qilingtools.com/en/split-bill): Free online bill splitter for trips and dinners: add people and expenses, split equally, by share or by amount, and settle with the fewest transfers. - [Discount Calculator](https://qilingtools.com/en/math/discount): Free discount calculator: sale price after % off and stacked discounts, spend-and-save deals, deal and unit price comparison, margin, markup, sales tax, tips. - [Habit Tracker](https://qilingtools.com/en/habit-tracker): Free habit tracker: daily or weekly goals, one-tap check-ins, current and best streaks, monthly calendar, yearly heatmap, stats, notes and JSON/CSV export. - [White Noise & Ambient Sounds](https://qilingtools.com/en/audio/ambient): Free ambient sound mixer: white, pink and brown noise, rain, ocean, wind, fire, stream, birds, café and fan. Presets, sleep timer, saved mixes, MP3/WAV export. - [Unit Price Calculator](https://qilingtools.com/en/unit-price): Compare products by unit price: per oz, lb, kg, L, item or sheet, with % off, spend-and-save, second-item discounts and buy-N-get-M deals. Finds the best value. - [China Salary Calculator (Take-Home Pay)](https://qilingtools.com/en/math/salary): China take-home pay calculator: editable city social insurance and housing fund rates, special deductions, monthly IIT, bonus tax, employer cost, net-to-gross. - [Chinese ID Number Validator](https://qilingtools.com/en/id-card): Validate Chinese ID numbers (GB 11643-1999): check digit, birth date, region, gender, age, zodiac; 15-to-18 upgrade; batch check with CSV. Runs locally. - [Decision Matrix](https://qilingtools.com/en/decision-matrix): Weighted decision matrix online: score options against criteria, set weights directly or by AHP pairwise comparison with CR, rank and test sensitivity. - [Expense Tracker](https://qilingtools.com/en/expense-tracker): Free private expense tracker: categories, accounts, tags, currencies, monthly budgets, pie, trend and heatmap reports, recurring bills, CSV import. Stays local. - [Invitation & Greeting Card Maker](https://qilingtools.com/en/invitation): Make invitations and greeting cards for weddings, birthdays, baby showers, parties and holidays: 12 templates, QR codes, one card per guest, PNG or PDF. - [Meeting Planner](https://qilingtools.com/en/meeting-planner): Find a meeting time across time zones: add cities and working hours, see overlaps on a 24-hour timeline, get best-time picks and export .ics or Google Calendar. - [Letter & Document Templates](https://qilingtools.com/en/doc-templates): Free fill-in templates: leave request, receipt, IOU, employment verification, authorization and resignation letters, plus Chinese formats. Print, PDF or copy. - [Gift Ledger](https://qilingtools.com/en/gift-ledger): Free private gift ledger: log wedding, shower and birthday gifts received and given, see each person’s balance, get return-gift ideas and print a list. - [Shift Schedule Maker](https://qilingtools.com/en/shift-schedule): Free shift scheduler: set staff, shifts and daily headcount, then auto-build a fair roster that respects rest and weekly-off rules. Rotations, print, CSV. - [China Phone Number Check](https://qilingtools.com/en/phone-check): Free checker for Chinese mobile numbers: validate the format, identify the carrier by prefix, flag MVNO, IoT and satellite ranges, and export them as CSV. - [ICS Calendar File](https://qilingtools.com/en/ics): Free online ICS generator: build .ics files with times, location, recurrence and alarms for Apple Calendar, Outlook or Google, or read an .ics someone sent you.