Sitemap — Page 4

Measure your pupillary distance (PD) with a camera: distance and near PD, each eye separately, reading glasses size and VR IPD.

Online hearing test with audiometry, speech-in-noise, and gap detection. Get your audiogram and hearing age.

Match your tinnitus pitch and play music or noise with that band removed: live filter graph, background play, diary, MP3 and WAV. In your browser.

Four tests: sitting-rising, 30-second chair stands, one-leg balance and VO₂max with a fitness age. Norms by age and sex, in your browser.

For best results, use a screen with good color reproduction at full brightness in a well-lit room. Turn off night mode, True Tone and blue-light filters, which shift colors and can invalidate the test.

Online dyslexia screening with 5 assessments and PDF report

Online dementia screening test — assess memory, attention, orientation and cognitive health

Put a finger on the camera and get your heart rate in 25 seconds. The number appears only when the signal is genuinely clean.

Comprehensive vision screening with 8 tests for phone and computer. Visual acuity, near vision, astigmatism, contrast, Amsler grid and more.

Comprehensive autism screening with social, sensory, and masking analysis.

Records and analyzes snoring through your microphone. Get a morning report with Snore Score, loud episodes and trends.

Clinically validated depression screening with mood tracking, wellness toolkit, and PDF report.

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.

Free tinnitus test: match the frequency of your ringing, find masking noise that covers it, and check the impact. Headphones recommended.

Pick a template or build your own. Your routine follows the device clock, counts down to the next event and runs in the background.

A period and ovulation calendar whose forecast shows a range instead of one date.

Guided breathing techniques for relaxation and focus

Anxiety tracker and mood diary — log levels, triggers and coping strategies

Instant emergency calming tool for panic attacks with guided breathing and reassuring voice.

Virtual sensory room with calming visuals and ambient sounds for self-regulation and relaxation.

Step-by-step BE-FAST check for stroke signs: balance, eyes, face, arms, speech. The time for the dispatcher and first aid until help arrives.

A photo with a coin in frame gives the size in millimeters; a second photo gives the growth rate. Body map, ABCDE, photo overlay and reminders.

Find your stage of the menopausal transition by the STRAW+10 criteria: premenopause, perimenopause or postmenopause, from your cycle dates.

Rate menopause symptoms on the international MRS scale: 11 items, three domains, a score and a trend. Take the result to your appointment.

Check whether your case falls inside the usual age of menopause, and whether early menopause or ovarian insufficiency under 40 has been missed.

Generate or fix color palettes so they remain distinguishable under all forms of color vision deficiency.

Upload an image to compare original and colorblind views side by side.

Allow camera access, choose a CVD type and mode, then see the live filter.

Use your camera, upload an image, or enter a color value to identify any color.

The guideline covers all water in a day. Here you see how much comes from food and how much is left to drink.

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.

Protocol, first meal and sleep — the window, the live countdown and the stages follow from those three.

Calculate blood alcohol content from drinks

Enter a distance and the time it took to get your pace, speed and predicted race finish times.

A spoon, a cup and a piece — not only “per 100 g”.

Choose a starting point and date to get your estimated due date, gestational age and trimester.

GI is measured on 50 g of carbohydrate; you eat portions. So this calculates load.

Pelvic floor trainer with a squeeze timer, breathing cues, a week-by-week program, technique checks and a separate mode for a tight pelvic floor.

A personal immunisation schedule from your child’s date of birth: exact dates, done marks, overdue highlighting and export to your phone calendar.

Wake windows by age plus a live daily plan: nap and bedtime targets recalculate from when your baby actually woke, not from an ideal timetable.

A tickable hospital bag list split by bag: documents, labor, postnatal, baby, going home. Adapts to a caesarean, the season and a birth partner.

Check whether your VPN is on and what goes around it: the network websites see, DNS, WebRTC and IPv6 leaks, split tunneling.

Look up any IP address or domain to see its location, ISP, VPN status, and more.

Test your IPv6 support, detect connection type, compare latency, and check for leaks.

Scan any website to discover all cookies, trackers, and privacy risks in seconds.

Check your internet speed: download, upload, ping, jitter and latency under load, over several parallel connections, compared with your plan.

Strobed lens-glint search and an infrared view — starting with a check that your phone can see any of it at all.

Run 25+ privacy and security checks on your browser. Get a score from 0 to 100 with detailed results and recommendations.

Estimated entropy per signal, comparison with today's scans, a defense test and fingerprint art — see which signals your browser exposes.

Instantly detect your browser, OS, screen, hardware, codecs, and web API support. Copy all info for tech support or download a PDF report.

Check if WebRTC is exposing your real IP address. Detect local, public, and mDNS candidates with real-time monitoring.

Check CPU, GPU, memory, battery, storage, network and browser capabilities. Get a device score, a CPU benchmark and personalized recommendations.

Look up DNS records for any domain. All record types supported, results from multiple resolvers.

Look up registration details for any domain name including registrar, dates, nameservers, and DNSSEC status.

Enter a URL to see the full redirect chain with HTTP status codes, response times, and server details.

Identify the manufacturer of any network device by MAC address, generate random MACs for testing, and convert between all standard formats.

Paste a message, link or screenshot to see where the link really goes, catch lookalike domains and spot the scam script behind it.

Play acoustic guitar with realistic sound synthesis. 70+ chords, strum and arpeggio modes, 5 tunings, recording.

Play electric guitar online: rock genres from blues to metal, pedals, a tube amp and cabinet, jam with a band, record to WAV and MIDI.

Strobe tuner that measures string inharmonicity and builds your piano's stretched curve. 88 keys, unisons, interval checks.

Microphone-based guitar tuner with real-time pitch detection. 6 tunings, A4 reference, ±1 cent accuracy.

Interactive 88-key virtual piano with 5 voices, MIDI input, recording, learn mode, and chord/scale assistance. Free, no signup.

A dual-engine virtual organ: tonewheel Hammond with drawbars, Leslie and percussion, plus a pipe/church organ with stops and cathedral reverb.

A realistic virtual flute you play in the browser — six flute types, a live Boehm fingering chart, breath and vibrato control, MIDI and recording.

Virtual kalimba with step sequencer, 8-track looper, reverb, delay, Web MIDI in and song library.

AI-generated endless piano music for focus and relaxation

Create beats and music patterns in your browser

Add parts — recordings or notes. One becomes the anchor, the rest follow it.

A live-playable drum kit with WebMIDI, recording, metronome, grooves and lessons — no signup.

Sheet music from a PDF or photos on a tablet or laptop. Turn pages with a Bluetooth pedal, a head turn or a wink; half-page turns and setlists.

Cognitive function screening — test attention, memory, reaction time and spatial reasoning

Scientifically-designed IQ test with adaptive matrices, spatial reasoning, and pattern recognition. Get accurate IQ score with confidence interval.

Check your mental sharpness with 7 scientific assessments. See how you compare with people your age.

Seven axes separate thrift from stinginess toward your own people; an SVO slider and a money split show how you treat a stranger, separately.

Find your purpose with the ikigai map: 4 directions, the validated Ikigai-9 scale, a personal diagram and a workshop. Online, no sign-up.

Check yourself with the Bergen Work Addiction Scale and a 5-dimension map: compulsion, overload, the toll on life. Online, no sign-up.

Both sides of trust at once: how much you extend to people and how much you return when they extended it to you. Trust game included.

Five risk domains scored apart and a Holt-Laury lottery that yields a real coefficient. No single score: boldness is not one dial.

Emotional intelligence measured as a skill, not a questionnaire: read real voices and faces, then see the gap between your score and your self-image.

Your four-letter type plus a full Big Five profile: 5 traits and all 30 facets of character with percentiles. Online, no sign-up.

Three scales instead of one score: general, work-related and people-related exhaustion — plus whether this is burnout or just fatigue.

Measure noise level in decibels

Lay the phone on an appliance’s cable and see whether current is flowing, and how much.

Point the camera at a lamp or a screen and read its flicker frequency, depth and risk level.

Put the phone near the road, listen, and read the speed of each vehicle that goes past.

How long your phone still knows which way it is pointing.

How tall is that, and how far away — with an error bar.

Find the gap, not just the draft.

Measure a color without the room changing the answer.

Five ways to read rotation speed: by sound, by a marker in the camera, by the phone's gyroscope, by screen strobe and by a printable strobe disc. Plus lamp flicker and PWM.

See your real speed from GPS: max, average, distance and track export. Check what your dashboard reads against true speed. No install.

Digital spirit level using your phone's sensors — 2D surface bubble, inclinometer, plumb line and camera AR with angle export.

Browser compass with true north corrected for declination, bearing hold, a sighting mode and an honest accuracy figure.

Azimuth, elevation and LNB skew to any satellite — with a map, a compass and the sun

Online protractor with transparent overlay and photo measurement — mm calibration, multi-angle, PNG/PDF/JSON export. Handy for builders, carpenters and students.

Find the elevation at any point on a map, build a profile along a route and get the slope in percent and degrees. Coordinates next to the height.

Free online ruler in actual size. Calibrate to your screen and measure in cm, mm and inches — on screen or on a photo.

A digital inclinometer that reads tilt in degrees, percent, per-mille and roof pitch — plus a clinometer mode for the height of trees and buildings.

Press Start Camera to activate your camera. The tool will convert light levels into audio tones.