About beancuit
We build on three principles: accurate standards, transparent sources, and tools that run only on your device.
What beancuit is
beancuit is a free, independent collection of useful online tools built for a global audience. Alongside calculators, we keep adding the tools people reach for at home and at work — unit and data converters, a word counter, coordinate conversion and more — plus region-specific tools such as Korean age and pyeong. Everything runs instantly in your browser with no sign-up or install, and nothing you enter or open is ever stored.
Our principles
- We show our sources. Formulas and conversion rules follow original materials such as laws, public agency data, medical society guidelines and international standards, and every page lists what it is based on.
- We note when we checked. When rates or rules change we update the formulas and the review date, so you can see how current a result is.
- Everything runs on your device. Calculations and conversions happen in your browser, and the values and files you use are never sent to a server.
- Results are for reference. We can't cover every exception, so please confirm with the relevant authority or a professional before making important decisions.
Our tools
- Calculator — Simple everyday calculator with history and percent key
- Scientific Calculator — sin cos log √ ^ π, with a degree/radian keypad
- Percentage Calculator — X% of Y, what % one number is of another, % change
- Unit Converter — Length, weight and temperature in every unit
- Date Calculator — Days between dates, or add and subtract days, weeks, months and years
- Word & Character Counter — Characters, words, CJK characters, UTF-8 bytes and reading time
- CSV, JSON & XML Converter — CSV, TSV, JSON, XML and Excel in one tool, with correct CJK encoding
- Coordinate Converter & Map — Decimal, DMS and DDM coordinates with distance, map view and GPX/KML export
- Loan EMI Calculator — Monthly payment, total interest and repayment for any loan
- Compound Interest Calculator — Future value of monthly investing and lump sums
- Bill Split & Tip Calculator — Split the bill, add a tip and round up to an easy amount
- Discount Calculator — Sale price, discount rate, amount saved and the original price in one place
- BMI Calculator — Body mass index, weight category and healthy weight by height
- BMR & Calorie Calculator — Basal metabolic rate and daily calories by activity
- Password Generator — Strong random passwords with length, symbols and strength
- QR Code Generator — Free QR codes for links and text, PNG or SVG download
- QR Code & Barcode Scanner — Read QR codes and barcodes with your camera or an image
- Random Number Generator — Random numbers, lottery picks, list picker, dice and coins
- Text Case Converter — Upper, lower, title, camelCase, snake_case, sort and dedupe lines
- Image Resizer — Resize and compress photos to JPG, PNG or WebP
- Base64 & URL Encoder/Decoder — Base64, URL, HTML, HEX and Unicode encode and decode
- Unix Timestamp Converter — Unix time to date and back, any time zone
- Color Converter — HEX, RGB, HSL and CMYK with WCAG contrast check
- JSON Formatter & Validator — Pretty-print, minify and validate JSON with error lines
- Color Picker — Pick colors from a palette, your screen or a photo
- Color Palette Generator — Complementary, analogous, triadic and shade palettes
- CSS Gradient Generator — Linear, radial and conic gradients with CSS and PNG
- Image Color Extractor — Find the main colors of any photo or logo
- Color Contrast Checker — WCAG AA and AAA contrast check with fixes