Tools for Students
230 toolsTools to boost your study sessions. Transcribe lectures, format text, train your brain with puzzles, generate focus sounds, and practice typing.
Nonogram
Use number clues to fill cells and reveal hidden pixel art pictures. 20+ puzzles from easy to hard.
Knight’s Tour
Move the knight across every square of a 5×5–10×10 board, numbering them 1 to 100. Dead-end warnings and a solver.
Tangram
Rearrange seven shapes to match the target silhouette. Drag, rotate with R, flip parallelograms with F.
Pipe Puzzle
Rotate pipe segments to connect the water source to every endpoint. Tap or click to rotate.
Dino Runner
Play the classic dinosaur runner game — jump over obstacles and set your high score
Trail
Connect numbered points in order while filling every cell on the grid. Daily logic puzzle — free, in your browser.
Egg Catcher
Browser remake of a Soviet LCD handheld. Catch eggs with the basket — don't miss any. Game A/B, 2 themes, personal records. Free.
Funny Faces
Build silly faces in your browser. Mix doodle eyes, noses, mouths, hats and roll the dice for random combinations. Print, save, share. Free.
Chess
Hint
Cognitive Test
Test attention, memory, reaction time, and spatial reasoning with instant results.
IQ Test
Scientifically-designed IQ test with adaptive matrices, spatial reasoning, and pattern recognition. Get accurate IQ score with confidence interval.
Neuro Test
Check your mental sharpness with 7 scientific assessments. Find out your mental age.
ADHD Test
Free adult ADHD test based on the WHO ASRS-v1.1. A 6-question screener with an instant result, plus the full 18-item checklist. Not a diagnosis.
Binaural Beats Generator
Use headphones for the binaural effect to work.
White Noise Generator
Mix 45 ambient sounds for sleep, focus, and relaxation. Set a sleep timer, customize your mix, and export to any format.
Isochronic Tones
Choose a preset or customize your session in Expert mode. No headphones required — works through any speaker.
Online Alarm Clock
Free online alarm clock with timer, stopwatch, Pomodoro, and world clock. 12 alarm sounds, math puzzle dismiss, screen awake.
Online Clock
Six clock types with educational guides and timezone support.
Audio Speed Changer
Speed up or slow down audio from 0.05x to 10x without changing pitch. Perfect for practice and transcription.
Sleep Calculator
Free sleep cycle calculator: best bedtime to wake up rested, or when to wake if you sleep now. Age-based targets, nap timer, 90-min cycles.
Morse Code Generator
Convert text to Morse code with audio playback. Adjust speed and tone, download as MP3 or WAV.
Morse Code Decoder
Decode Morse code from audio — record from microphone or upload a file. Real-time analysis to text.
Dyslexia Reader
Customizable reading aid with dyslexia fonts, spacing, focus cues, overlays and text-to-speech.
Reading Ruler
Visual reading ruler and color overlay to help with dyslexia and visual stress.
