Tools for Students
213 toolsTools to boost your study sessions. Transcribe lectures, format text, train your brain with puzzles, generate focus sounds, and practice typing.
Forward Kinematics Visualizer
Visualize serial robot arm kinematics interactively using Denavit–Hartenberg parameters.
Emoji catalog
Browse 1 940 Unicode emojis with names in 9 languages. Search by paste, hex or :shortcode, copy in one click, download SVG/PNG. Free.
Text to IPA
Turn English text into IPA phonetic transcription: context-aware readings, weak forms, stress and syllables, British and American.
Syllable Counter
Count the syllables in any English word or text. Dictionary-accurate, with a poetry mode for haiku. Free, in your browser.
Sentence stress
Shows the main stress of each phrase, its thought groups and weak forms. Move the stress to any word, or record yourself and compare the rhythm.
Word Stress
Find which syllable to stress in any English word. Shows the stressed syllable, IPA and noun/verb pairs like REcord vs reCORD. Free, in your browser.
Minimal Pairs
Train your ear on tricky English sounds — ship vs sheep, light vs right. A minimal pairs listening drill, in your browser.
Subtitle vocabulary
Drop in an .srt and see how much of the dialogue you would follow, and which words to learn before you press play.
Vocabulary Size Test
Estimate how many English words you know. A quick, science-based vocabulary size test with a CEFR estimate. Free, no sign-up.
Anki Deck Builder
Paste a word list and build a real Anki .apkg deck — with IPA, audio and a built-in study mode. Free, in your browser.
Word of the Day
A new English word each day with translation, meaning, examples and audio. Save and review words with spaced repetition. Free, in your browser.
English Dictation Practice
Listen to graded English sentences and type what you hear. Word-by-word error highlighting, A1–C2 levels, adjustable speed. Free, in the browser.
English Spelling Test
Hear an English word and spell it. Four difficulty tiers, example sentences, letter-by-letter error marking and a streak counter. Free.
English Vowel Trainer
Hold the vowel like a long, steady note — don't say the consonants around it. Record somewhere quiet for the clearest reading.
Shadowing Studio
Loop and slow down any audio or video, record yourself shadowing it, and compare your waveform and pitch side by side. Free, in the browser.
English Level Test
Adaptive English level test: vocabulary, grammar, reading and listening. Get your CEFR level with IELTS and TOEFL equivalents. Online, no signup.
English Grammar Course
Learn English grammar by CEFR level A1–C2. Free course with clear lessons, exercises and progress tracking, in your browser.
Hourglass Timer
Set a duration and watch the sand run through the glass.
Test PDF Generator
Generate test PDFs in your browser — lipsum text, multi-page sections, big table or blank. A4/Letter/Legal/A3, up to 500 pages, custom title.
Sample Document Generator
Generate sample documents in browser — CSV, JSON, XML, RTF, Markdown, TXT with deterministic rows. Custom row/column count up to 100 000.
Will AI Replace Your Job?
Estimate the automation risk of any profession with multi-source 2026 data.
