מחשבונים אינטראקטיביים בגיבוי מדע בחינם
Accurate mathematical models to audit storage bloat, calculate fasting autophagy, estimate walking fat burn, and measure digital screen time dividends.
E-Number & Food Additives Safety Database
Audit commercial food additive codes, official EFSA & FDA safety ratings, vegan/halal verification, child hyperactivity warnings, and decode 18 major allergen synonyms.
Document & Sensitive Data Redactor
Black out confidential text, blur credit card numbers, and redact personal information from IDs and photos with client-side canvas.
DPI & Print Resolution Calculator
Calculate exact print dimensions, maximum poster sizes, and optimal resolution (DPI/PPI) from digital image megapixels and dimensions.
Walking Cadence & Zone 2 Fat Burn
Calculate walking speed, step frequency (SPM), and optimal Zone 2 fat-burning heart rate with interactive metronome cadence trainer.
Lifetime Screen Time Waste Calculator
Discover how many years of your waking life are lost to smartphone addiction, and calculate the compounding hours you regain by breaking digital habits.
Medication Refill & Adherence Calculator
Calculate exact prescription runout dates, days supply, and Proportion of Days Covered (PDC) adherence score to never miss life-saving doses.
Baby White Noise & Sleep Sound Machine
Calm fussy infants and promote deep infant sleep with real-time synthesized pink noise, brown noise, rhythmic shushing, and womb heartbeat acoustics.
Baby Feeding & Milk Volume Calculator
Calculate daily formula and breast milk volume requirements by infant age and weight, feeding frequency, and ounces per bottle based on pediatric standards.
Free Online Photo & Face Blur Tool
Blur faces, pixelate license plates, and redact confidential documents with HTML5 Canvas. Zero cloud upload — complete local device privacy.
Interactive Days Until & Live Countdown
Count down days, hours, and seconds until upcoming vacations or weddings, or track habit streaks ("Days Since") and calculate business days.
Smartphone Addiction & Screen Time Test
Assess your digital dependency score on the clinically validated Smartphone Addiction Scale. Calculate waking lifetime years lost to scrolling.
iCloud Storage Cost & Savings Calculator
Calculate total money spent on Apple iCloud+ tiers over 1 to 5 years. Discover how clearing 35GB of duplicate photos saves up to $180+.
Hotel & Airbnb Room Privacy Checklist
Conduct a systematic anti-surveillance check across bedrooms and bathrooms before unpacking. Two-way mirror test & flashlight glint guide.
Lost AirPods Battery & Signal Distance Tool
Estimate remaining battery life of misplaced AirPods or earbuds based on ambient temperature. Calculate Bluetooth RSSI search radius in meters.
Password Strength & Entropy Estimator
Evaluate Shannon entropy bits, detect pattern weaknesses, and estimate realistic brute-force crack times across RTX 4090 GPUs. Generate Diceware passphrases locally.
Ambient Noise & Sleep Machine
Synthesize pure White, Pink, Brown, and Green noise in real-time. Multi-track mixer with ocean waves, rain, binaural beats, and sleep timer.
Wi-Fi QR Code & Guest Card
Generate custom scan-to-connect Wi-Fi QR codes with 100% in-browser privacy. Print elegant table tent guest cards for Airbnb, home, or office.
Due Date & Pregnancy Milestones
Calculate your Estimated Date of Delivery (EDD), track 40-week fetal development with fruit size comparisons, and map clinical ultrasound milestones.
TDEE & Macro Split Calculator
Calculate your exact Total Daily Energy Expenditure (TDEE), BMR, and targeted protein, fat, and carb grams. Meal planner and weekly zig-zag calorie cycling.
Sleep Cycle & REM Calculator
Calculate optimal bedtime and wake-up times synced with natural 90-minute ultradian sleep cycles. Avoid sleep inertia, optimize REM & deep sleep, and plan NASA power naps.
Video Speed Controller & Slow-Mo
Speed up or slow down videos with pitch-preserved audio. 30fps frame-by-frame analysis, duration savings math, and instant export.
Video Audio Extractor
Extract crystal-clear audio from MP4, MOV, and WebM videos directly in your browser. Waveform trimmer, +10dB gain boost, and lossless WAV or MP3 export.
Room Privacy Risk Assessment
Audit hotel rooms, Airbnbs, and dressing areas for hidden spy cameras. Calculate your Privacy Vulnerability Index across optical, Wi-Fi, and EMF vectors.
TikTok & Reels Safe Zone Previewer
Real-time 9:16 platform overlay checker for TikTok, Instagram Reels, and YouTube Shorts. Keep subtitles, CTAs, and hooks clear of UI buttons.
HEIC to JPG & PNG Converter
Batch convert iPhone HEIC and HEIF photos to high-quality JPG or PNG. 100% private, client-side WebAssembly execution with ZIP export.
Aspect Ratio & Bitrate Calculator
Calculate video canvas aspect ratios, crop dimensions, resolution scaling, and estimate encoded video file sizes across H.264, HEVC, and ProRes.
Online Bluetooth Radar & Scanner
Scan for nearby Bluetooth Low Energy (BLE) peripherals, visualize live radial radar sweep, measure RSSI decibels, and estimate distance.
Online Phone Vibration Test
Test vibration motor strength, diagnose Taptic Engine resonance, compose custom haptic patterns, and inspect tactile feedback frequency.
Online Camera Resolution & FPS Test
Benchmark live 4K/1080p camera resolution, measure real-time FPS & jitter, inspect RGB histograms, and scan for sensor dead pixels.
Online Hearing Test & Audiogram
Measure left/right ear pure-tone thresholds from 125Hz to 8kHz, plot an interactive clinical audiogram, and calculate biological ear age.
Online Photo EXIF Inspector & Stripper
Inspect hidden GPS coordinates, camera hardware serials, and exposure settings. Clean and strip tracking metadata 100% loss-free.
Online Decibel Meter & Sound Level Detector
Measure ambient noise levels in real-time dB SPL with animated radial gauge, live FFT frequency spectrogram, and peak holding.
Online Internet Speed & Latency Test
Measure download bandwidth, upload throughput, ping latency, and jitter with a real-time analog speedometer gauge.
OLED & LCD Screen Diagnostic Suite
Audit displays for dead pixels, OLED burn-in, 120Hz ProMotion refresh rate, and 5% gray uniformity with full-screen test patterns.
Online Speaker Cleaner & Water Eject
Eject trapped water droplets and shake loose speaker dust using 165Hz acoustic pressure pulses and harmonic sound sweeps.
iPhone Storage & System Data Calculator
Estimate recoverable gigabytes across duplicate HEIC photos, bloated 4K video clips, and stubborn iOS system data caches.
Camera Roll Clutter & Duplicate Calculator
Calculate immediate space savings by wiping duplicate bursts, temporary receipts, and uncompressed video recordings.
Screen Time & Attention Dividend Calculator
Discover how many waking years you lose to algorithmic feeds and calculate the lifetime hours reclaimed through strict mode.
Intermittent Fasting & Autophagy Timeline
Track your cellular recycling milestones from blood sugar stabilization and ketosis to peak cellular autophagy.
Walking Steps to Calorie & Fat Burn
Convert daily step counts, walking pace, and body weight into calories burned, grams of fat oxidized, and snack equivalents.
Smoking Cessation Cost & Health Calculator
Calculate your compounding financial savings from quitting tobacco, count cigarettes avoided, and see pulmonary recovery stats.
Infant Wake Window & Nap Sleep Calculator
Pediatric wake window calculations by month to optimize bedtime routines, avoid overtiredness, and lengthen night sleep stretches.