Tools for Students
85 toolsTools to boost your study sessions. Transcribe lectures, format text, train your brain with puzzles, generate focus sounds, and practice typing — all free.
Calculator
Basic and scientific modes, voice readout in 9 languages, large buttons and a running paper-tape — built to be easy for seniors, children and everyone else.
Falling Sand
Pick an element and paint on the canvas. Watch sand fall, water flow and fire spread.
Spirograph
Adjust the ring, gear and pen sliders to draw geometric spirograph curves.
Speech to Text
Speak into your microphone and watch text appear in real time. Voice commands, auto-punctuation, 60+ languages.
Audio to Text
Upload any audio file and get accurate text transcription with timestamps. Powered by Whisper AI — runs in your browser.
Text to Speech
Convert text to natural speech with neural AI voices in 30+ languages. Download as MP3 for free.
Re-Dub
Upload audio or video, get an editable transcript, and re-voice it — change the speaker, switch voices line by line, or re-dub just one character.
Online Voice Recorder
Record from microphone or system audio directly in your browser. No installation, no signup — just press record.
Word Counter
Count words, characters, sentences, paragraphs. Readability scores, keyword density, social media limits. Free, runs in your browser.
Text Formatter
All-in-one text formatter: 60+ operations for case conversion, cleaning, encoding, fancy text. Free, private, in browser.
Punctuation & Spell Checker
Check Russian and English punctuation, commas, dashes and spelling — with rule explanations and one-click fix. Russian has an advanced in-browser spell-checker.
World Alphabets
Interactive alphabet guide for 12 languages. Click any letter to hear its pronunciation. Learn mode + quiz mode.
Poetry Analyzer
tools/poetry-analyzer.hint
Russian–Latin Transliterator
Convert Cyrillic to Latin in 9 standards side by side — passport, GOST, ICAO, BGN/PCGN and more. Compare them, reverse the conversion, export a PDF name card.
Russian Stress Marks
Automatically place stress marks on Russian text, pick the variant for homographs, and restore the letter ё.
Voice Translator
Translate speech in real time between 50+ languages.
Kalimba
Virtual kalimba with step sequencer, 8-track looper, reverb, delay, Web MIDI in and song library.
Memory Game
Match card pairs to train your memory with adjustable difficulty.
Snake Game
Classic Snake arcade with 4 modes, power-ups and themes.
Maze Game
Navigate procedurally generated mazes with increasing difficulty. Four modes from easy to extreme.
Sokoban
Push all boxes onto the goal markers. 155 hand-crafted levels from easy to expert.
2048
Slide tiles with arrow keys or swipe. Merge matching numbers to reach 2048!
Lights Out
Toggle lights to turn them all off. Clicking a light flips it and its neighbors.
Sliding Puzzle
Slide numbered tiles into the correct order. Choose 3x3, 4x4, or 5x5 grid size.
