Tools for Students
144 toolsTools to boost your study sessions. Transcribe lectures, format text, train your brain with puzzles, generate focus sounds, and practice typing.
Audio to Notes
Transcribe any audio recording into notes, MIDI, and sheet music using AI.
Sheet Music to MIDI
Scan any score photo or PDF and hear the notes back.
Music Genre Detector
Upload an audio file to identify its genre, mood, dominant instruments, BPM and musical key.
Random Number Generator
Generate random numbers, roll dice, flip coins, pick from lists, create passwords. Crypto-secure, instant, free.
Random Word Generator
Generate random words, letters and ideas for games, writing prompts and brainstorming. Instant and free.
Spectrogram Lab
Analyze sonograms and spectrograms of wildlife sounds: birds, bats, whales, frogs, insects.
Cell Counter
Automatic cell counting and microscopy image analysis — free, in your browser.
Roman Numerals
Type either box to convert. Switch modes for dates, a Roman clock, lessons, or a quiz. The chart stays visible.
Number to Words
Spell numbers and amounts with real grammar — seven languages, currency, ordinals, cheques and batch mode.
Sign PDF
Add your signature to a PDF online: draw, type or upload it, drop it on the page, add the date and download the signed file. In your browser.
Keyboard Layout Converter
Convert between 12 keyboard layouts with auto-detection — QWERTY, Cyrillic, Korean, Arabic and more.
Military Time Converter
Convert between 24-hour military time and 12-hour AM/PM format with live sync, batch mode and reference chart.
Countdown to Date
Live countdown timer to any date with themes, full-screen and shareable link
Percentage Calculator
Percent of a number, percent change, discount, tip, VAT, markup
GPA Calculator
Add each course with its letter grade and credit hours to get your credit-weighted GPA.
OCR Text Extractor
Drop an image, PDF or a full folder — get editable text, Word, Excel or searchable PDF.
Camera Text Reader
Point your camera at text or upload a photo — the tool recognizes it and reads it aloud.
Online Protractor
Online protractor with transparent overlay and photo measurement — mm calibration, multi-angle, PNG/PDF/JSON export. Handy for builders, carpenters and students.
Online Ruler
Free online ruler in actual size. Calibrate to your screen and measure in cm, mm and inches — on screen or on a photo.
Barcode Scanner
Scan any barcode or QR code from camera or uploaded image. Get product info, links, and more.
Online Stopwatch
Precise online stopwatch with laps, splits, sparkline and shareable link
Slideshow Maker
Drop multiple photos, add an audio track, pick a transition — get a finished video, slide deck or PDF in one click.
File Transfer
Drop a file or folder, share the 6-letter code or QR — the transfer flows directly between browsers.
Visa-Free Countries by Passport
Pick your passport — we show every destination, sorted by entry requirement.
