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.
Audio Translator
Translate an audio recording into another language and hear it: podcasts, interviews, lectures, voice notes. Audio, transcript and subtitles out.
Calendar
Calendar with tasks and repeating entries. Week, month, list. Subscribe from Google or Apple, publish your schedule on your profile.
Ear Trainer
Hearing which frequency is the problem is a skill built by repetition. Everything you need for that is here.
Photo merger: two pictures into one
Combine two or more photos into one image: side by side, stacked, in a grid, or layered with transparency. Tone matching and before/after labels.
Synonyms of a word
Find synonyms for any word in 9 languages — our vetted dictionary plus Wiktionary, grouped by meaning. Online, no sign-up.
Breadboard Simulator
A virtual solderless breadboard: plug parts into holes, run jumpers — the circuit really computes.
Perfboard Layout
Lay parts out on a solder board, draw the traces and check the circuit before you pick up the iron.
Lorem Ipsum
Generate placeholder text in 10 languages — exact word or character count, HTML, Markdown or plain. Presets for meta, tweet, SMS.
Text Rewriter
Rewrite editor: paraphrase, change tone, shorten, simplify or fix your text — in its own language, with the changes highlighted.
Air Draw
A free tool to draw in the air with your hand: a hand-tracking model follows your fingertip and a neon brush paints the line. Pinch your fingers to draw, open them to stop.
Russian cursive
See how any Russian letter or word is written in cursive, play the writing animation and print a tracing worksheet.
Portuguese cursive
Type any word and see it in letra cursiva next to its letra bastão form, watch the stroke order and print a caligrafia sheet.
Color Mixer
Mix two or more colors and see the real result — like real paint (blue + yellow = green), as light, or digital. In your browser.
Secret Language
Type a secret, get innocent-looking text to send anywhere; paste it back to recover the exact message.
3D Earth Globe
Interactive 3D Earth globe with real-time day & night, sun position, country search and live ISS tracking. Free, in your browser.
Moon
Moon phase now, lunar day counted from moonrise at your location, rise and set, distance and a phase calendar. 3D globe with real libration.
Space Weather
Live Kp index, geomagnetic storm level, solar wind and the aurora forecast on a map. See if the northern lights are visible tonight.
Aurora Forecast
Live aurora oval map plus a straight answer on whether the northern lights are visible from your spot tonight: darkness, cloud, moon, Kp.
Earthquake Map
A live map of recent earthquakes worldwide from USGS and EMSC — magnitude, depth and time for each quake, updated continuously. Free.
Earthquake simulator
See how hard a given magnitude shakes your city: intensity contours on a real map, a synthetic seismogram and building response. Runs in the browser.
Beaufort scale
Wind force in numbers: the full Beaufort table, the Saffir-Simpson categories, and what wind a hurricane would deliver to your city.
Measure on map
Trace a plot on the map and get its area on the WGS84 ellipsoid — in hectares or acres — not the area of the picture on screen.
Wildfire Map
A live map of active wildfire hotspots worldwide from NASA satellites — heat detections from the last 24 hours, ranked by fire power. Free.
Satellite Tracker
Track satellites live on a map, see Starlink, and find out when the ISS will pass over your location — propagated in your browser. Free.
