Student Toolkit

Customizable focus timer with notifications

Add, complete, and filter tasks with auto-save

Multi-tab notepad with live word count and auto-save

Online stopwatch with start, pause, reset, and lap timing accurate to the centisecond

Countdown timer with quick presets, audio alert, and optional browser notification

Write Markdown with a live, sanitized HTML preview

Count words, characters, sentences, reading time

Generate placeholder text in any format

X% of Y, X is what % of Y, increase and decrease

Mean, median, mode, standard deviation and more

Convert across length, weight, temp, and more

Body Mass Index in metric or imperial units

Calculate exact age in years, months, days plus total days, weeks, and hours

Calculate tip and total for any bill, split between any number of people

Future value with regular contributions

Monthly payment, total interest, and amortization

Equated Monthly Installment, total interest, and amortization schedule for any loan

Compute the difference between two dates

Day of week, ISO week number, day-of-year, and leap-year info for any date

Convert datetimes between timezones

Convert between Unix epoch and ISO/local datetime

Spin a weighted wheel to make any random choice — supports per-option weights

Roll virtual dice with 4–100 sides for tabletop games and decisions

Flip a virtual coin once or many times to settle decisions or generate random bits

Generate random first + last names for fictional characters and test data, filter by gender

Extract text from images and screenshots using browser-based OCR — your files never leave your browser.

Turn a scanned PDF into a searchable PDF — runs entirely in your browser, no upload.

Pick colors and convert across HEX, RGB, HSL, OKLCH

Generate QR codes for any URL or text

Searchable reference of all 256 ASCII / Latin-1 characters with dec, hex, oct, bin, HTML

Browse and search hundreds of popular emojis by category, click to copy

Code point, UTF-8 / UTF-16 bytes, escapes, block, and category for any character