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.
Cognitive Test
Test attention, memory, reaction time, and spatial reasoning with instant results.
IQ Test
Free 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.
Dyslexia Test
Interactive dyslexia screening with 5 assessments and downloadable PDF report.
Drawing for Kids
Free online drawing tool for kids with brushes, stamps, pixel art mode, 120+ shapes, and color palette.
Reaction Time Test
Measure your reaction speed in visual, audio, and reflex modes with millisecond precision.
Typing Speed Test
Measure your typing speed in words per minute with real-time accuracy tracking
Typing Trainer
Free typing trainer with adaptive lessons, code mode, finger heatmap and certificate. QWERTY, Dvorak, Colemak. 9 languages.
Phone Keyboard Test
Type a phrase and we verify the output — catching autocorrect, missing letters and lag
Earth Meter
Watch 20 world statistics update live: population, environment, energy, technology, economy.
Circuit Simulator
Build and simulate electronic circuits in your browser. Drag-and-drop components, draw wires, real-time voltage and current readouts.
Private Chat
Encrypted, no signup, peer-to-peer — share a link and chat privately.
