Sitemap
Browse all Timbrica tools, format converters, and informational pages. Find the right tool for volume adjustment, trimming, conversion, recording, analysis, and more — all free, no registration required.
Audio
Audio Volume Changer
Increase or decrease audio volume
Trim Audio
Cut audio fragments
Ringtone Maker
iPhone/Android ringtone maker
Audio Enhancer
Enhance audio quality with AI processing
8-Bit Chiptune Synthesizer
Transform audio into retro 8-bit chiptune sound
Audio Chapter Splitter
Split audio by chapters or timestamps
Audio Speed Changer
Change playback speed
Time-Stretch to Target BPM
Change audio duration without affecting pitch
Change Pitch
Shift pitch up or down
Equalizer
Apply EQ presets
Reverse Audio
Play audio backwards
Silence Remover
Detect and remove silent segments from audio
Add Silence
Add silence padding to beginning or end of audio
Audio Joiner
Merge multiple files
Reverb & Echo
Add reverb and echo effects to audio
Audio Denoiser
Remove background noise from audio
Podcast Insert
Insert intros, outros and ads into podcasts
Audio Looper
The most powerful audio looper online — repeat songs with crossfade, gap control, A/B section loop, fade effects, and target duration mode. Free, private, browser-based.
ACX Audiobook Mastering
Free ACX audiobook mastering tool — auto-normalize RMS, limit peaks, reduce noise, export 192 kbps CBR MP3 for Audible.
Audiobook Consistency Checker
Upload all audiobook chapters to check ACX compliance and consistency
Audio Repair
Fix corrupted or damaged audio files
Convert Audio
Convert between formats
Audio Compressor
Compress any audio file to reduce size
Extract Audio from Video
Extract audio track from video files
Channel Converter
Convert between mono and stereo
Mono to Stereo
Convert mono audio to stereo
Stereo to Mono
Convert stereo audio to mono
Multi-Track Recorder
Record from multiple microphones simultaneously in separate tracks.
MIDI to MP3/WAV
Convert MIDI to MP3/WAV
Voice & Speech
Vocal Range Finder
Find your vocal range and voice type
Voice Changer
Transform your voice with real-time effects
Vocal Remover
Remove vocals from music tracks
Speech to Text
Convert speech to text with AI
Audio to Text
Transcribe audio files to text
Text to Speech
Convert text to natural speech audio
Megaphone Effect
Use your device as a megaphone or PA system
Online Voice Recorder
Record voice or system audio in browser
Walkie-Talkie
Browser-based walkie-talkie communication
Video
Digital Signage
Free digital signage: fullscreen slideshows for TVs and displays. Transitions, music, widgets. Export video for offline.
Trim Video
Trim and cut video clips in browser
Video Crop & Resize
Crop video to any aspect ratio or custom size
Video Flip & Mirror
Flip, mirror and rotate video files
Video Wall
Play multiple videos simultaneously in a grid layout
Remove Audio from Video
Remove audio track from video files
Add Music to Video
Add background music or audio to video
Video Repair
Fix corrupted or broken video files — repair containers, codecs, timestamps, and recover damaged footage.
Video Enhancer
Improve video quality with presets or fine-tune every parameter manually.
Video Compressor
Compress video for WhatsApp, Discord, Email or set exact target size. 16 platform presets.
Video Frames
Extract all frames from video or assemble images into video. 5 extraction modes, WebP support, ZIP download.
Create Video from Audio
Upload music, a podcast, or voice recording — get a ready-made video with sound visualization, backgrounds, and text.
Subtitle Merger
Merge two subtitle files into one bilingual file
Video to VR
Convert flat video to side-by-side VR format for Cardboard and smartphone headsets
Device Testing
USB Drive Tester
Detect fake USB drives and verify real capacity — like h2testw, but in your browser.
Speaker Cleaner
Clean phone speaker from water and dust with sound
Speaker & Headphone Test
Test your speakers and headphones
Microphone Test
Test your microphone online
Mic Noise Test
Diagnose microphone noise issues like hum and hiss
Vibration Test
Test your device vibration motor with patterns, diagnostics, and a custom builder.
Subwoofer Test
Test your subwoofer with tone generator, frequency sweeps, bass drops, diagnostics, and room mode calculator.
Refresh Rate Test
Measure your monitor refresh rate with precision frame timing. Detect Hz, analyze jitter, explore display capabilities, and test motion smoothness — all in your browser.
Battery Checker
Check your device battery level, charging status and time remaining online
Dead Pixel Test
Check your screen for dead, stuck, and hot pixels with 21 test patterns and built-in repair tool
Phone Display Test
Check your phone screen for dead pixels, touch issues, backlight bleed, burn-in, and color accuracy.
Camera Test
Test your webcam for resolution, FPS, sharpness, noise, lighting, and color accuracy.
Keyboard Test
Test every key, detect ghosting, measure latency and typing speed
Gyroscope Test
Test your phone's gyroscope, accelerometer, and motion sensors. 3D visualization, spirit level, graphs, accuracy test, CSV export.
Bluetooth Audio Test
Test any Bluetooth audio device: headphones, speakers, earbuds, car audio. Measure latency, check speaker channels, test mic quality.
Printer Test
Check your printer in seconds with Quick Test or run detailed diagnostics with Professional mode. Color bars, nozzle check, grayscale, text sharpness, and more.
Click Speed Test
Measure your clicks per second with multiple modes and timers
Screen Burn-In Test
Test your OLED or LCD screen for burn-in and image retention with fullscreen solid colors and burn-in pattern overlays.
Mouse Test
Test every mouse button, scroll wheel, and drag tracking
Touchscreen Test
Test multitouch, dead zones, ghost touches, latency and pressure sensitivity on any touchscreen device
Typing Speed Test
Measure your typing speed in words per minute with real-time accuracy tracking
Monitor Color Test
Check color accuracy, gamma, contrast, and gradients — all in the browser
Gamepad Test
Test your controller buttons, sticks, triggers and vibration online
Mouse Polling Rate Test
Move the cursor over the test area — the polling rate appears within a second.
GPU Benchmark
WebGL-based GPU benchmark that tests particles, 3D geometry, and shaders. Produces a score from 0 to 10,000. Includes stress test mode.
CPU Benchmark
Test your processor speed with single-thread and multi-thread benchmarks
HDR Display Test
HDR detection, visual tests, diagnostics & scoring
VR Readiness Test
Check stereo vision, motion sickness risk, IPD and find the VR headset that fits you before you buy
VR Headset Test
WebXR diagnostic suite for FOV, tracking, refresh rate, spatial audio and display dead pixels — runs inside your headset browser
VR Compatibility Test
Check WebXR support, GPU, CPU, RAM, sensors and bandwidth — then see which VR headsets match your hardware
Phone Benchmark
Get a 0–100 score for your phone in 10 seconds — CPU, GPU, RAM, display, network, and health.
Generation
Audio Scene
Hear your audio in 60+ environments
White Noise Generator
Generate white, pink and brown noise
Silence Generator
Generate silence files with comfort noise options
Binaural Beats Generator
Brainwave entrainment with binaural frequencies
Beat Maker
Create beats and music patterns in your browser
Loud Sound Generator
Generate loud creepy sounds or boost audio up to 400%
Alarm Sound Generator
Create custom alarm and notification sounds
Doorbell Sound Generator
Generate doorbell sounds, chimes, and melodies. 35 presets, custom synthesizer, melody composer, multiple export formats.
Isochronic Tones
Brainwave entrainment with pulsing isochronic tones
Tone Generator
Generate precise audio tones, sweep frequencies, mix oscillators, play DTMF phone tones, export WAV. Web Audio API.
DTMF Generator
Generate and decode telephone touch-tones with ITU-T Q.23 precision — keypad, sequence player, microphone decoder, multi-region call-progress tones, WAV/MP3 export.
Ultrasonic Generator
Generate ultrasonic frequencies beyond human hearing. Up to 48 kHz with 96 kHz sample rate. Real-time spectrum analyzer.
Morse Code Generator
Convert text to Morse code audio
Dog Whistle
Silent ultrasonic whistle for dog training
Dog Repellent
Ultrasonic dog repellent with siren and auto-off timer
Rodent Repellent
Ultrasonic rodent repellent sound generator
Cockroach Repellent
Ultrasonic cockroach repellent with anti-habituation patterns
Bird Repeller
Generate deterrent sounds in the 1–5 kHz bird hearing range — 8 synthesized modes, species targeting, anti-habituation timer.
Detectors
AI Audio Detector
Detect AI-generated audio content
Sound Level Meter
Measure noise level in decibels
Audio Logger
Record audio continuously for hours.
Video Surveillance
Turn any device into a security camera with motion detection, recording, and remote viewing. P2P, free, no sign-up.
Light Detector
Press Start Camera to activate your camera. The tool will convert light levels into audio tones.
Analysis
Audio Inspector
Deep forensic analysis of audio files
BPM & Key Finder
Detect tempo, key, Camelot and time signature
Audio Metadata Editor
View and edit audio file metadata tags
Audio Forensics
Analyze audio for signs of editing, splicing, or AI generation.
Audio Splice Detector
Find splices, cuts and edits in audio recordings using six forensic detectors with millisecond precision.
Audio Watermark
Embed invisible watermark in audio to prove ownership
Audio to Notes
Transcribe any audio recording into notes, MIDI, and sheet music using AI.
Health
Online Hearing Test
Free online hearing test with audiometry, speech-in-noise, and gap detection. Get your audiogram and hearing age.
Dyslexia Test
Free online dyslexia screening with 5 assessments and PDF report
Cognitive Test
Free cognitive function screening — test attention, memory, reaction time and spatial reasoning
IQ Test
Free scientifically-designed IQ test with adaptive matrices, spatial reasoning, and pattern recognition. Get accurate IQ score with confidence interval.
Dementia Screening Test
Free online dementia screening test — assess memory, attention, orientation and cognitive health
Neuro Test
Check your mental sharpness with 7 scientific assessments. Find out your mental age.
Autism Spectrum Test
Comprehensive autism screening with social, sensory, and masking analysis.
Depression Screening Test
Clinically validated depression screening with mood tracking, wellness toolkit, and PDF report.
Daily Routine
Pick a template or build your own. Your routine follows the device clock, counts down to the next event and runs in the background.
Breathing Exercise
Guided breathing techniques for relaxation and focus
Anxiety Tracker
Free anxiety tracker and mood diary — log levels, triggers and coping strategies
Panic Button
Instant emergency calming tool for panic attacks with guided breathing and reassuring voice.
Sensory Room
Virtual sensory room with calming visuals and ambient sounds for self-regulation and relaxation.
Colorblind-Safe Palette
Generate or fix color palettes so they remain distinguishable under all forms of color vision deficiency.
Colorblind Simulator
Upload an image to compare original and colorblind views side by side.
Colorblind Camera Filter
Allow camera access, choose a CVD type and mode, then see the live filter.
Color Name Identifier
Use your camera, upload an image, or enter a color value to identify any color.
Handy Tools
Online Mirror
Use your camera as a mirror with zoom, filters and screenshot
Screen Recorder
Record your screen, browser tab, or window directly in the browser.
Morse Code Decoder
Decode Morse code to text
Audio Visualizer
Create visual animations from audio
Bluetooth Keep Alive
Keep Bluetooth & audio devices connected
Keep Screen On
Keep your screen on and prevent it from sleeping — free online tool
Online Alarm Clock
Set alarms and timers with custom sounds
QR Code Generator
Generate customizable QR codes for URLs, text, WiFi, vCard, email, SMS, phone, WhatsApp, and locations.
Secret Vault
Encrypted diary, password manager and file safe — AES-256-GCM encryption in your browser via Web Crypto API.
Barcode Scanner
Scan any barcode or QR code from camera or uploaded image. Get product info, links, and more.
Secure USB Wipe
Overwrite files with random data before deletion — make recovery impossible. Works on USB drives, SD cards, and any folder. No software to install.
Steganography
Hide secret text, files, or images inside pictures using LSB steganography. Optional AES-256 encryption.
Pet Name Generator
Browse 1400+ curated names for dogs, cats, parrots, hamsters, rabbits, fish, turtles, horses, reptiles, ferrets, guinea pigs and birds — filter by gender, style, popularity and length.
Bubble Level
Digital spirit level using your phone's sensors — 2D surface bubble, inclinometer, plumb line and camera AR with angle export.
Internet & Security
Share Location
Find, view, and share your GPS location with an interactive map and compass.
VPN Checker
Check if your VPN is working and test for IP, DNS, and WebRTC leaks. Instant anonymity score with detailed results.
IP Lookup
Look up any IP address or domain to see its location, ISP, VPN status, and more.
Checksum Calculator
Hash any file with 6 algorithms. Verify downloads, compare files, find duplicates.
Chat Room
Friendly online chat — anonymous, no registration, just real conversations.
IPv6 Test
Test your IPv6 support, detect connection type, compare latency, and check for leaks.
Cookie Checker
Scan any website to discover all cookies, trackers, and privacy risks in seconds.
Speed Test
Check download, upload, ping, jitter, packet loss, and bufferbloat in one 30-second test.
Privacy Audit
Run 25+ privacy and security checks on your browser. Get a score from 0 to 100 with detailed results and recommendations.
Browser Fingerprint
Real entropy bits, live cohort comparison, defense test, and visual fingerprint art — see exactly how trackable your browser is.
What Is My Browser
Instantly detect your browser, OS, screen, hardware, codecs, and web API support. Copy all info for tech support or download a PDF report.
WebRTC Leak Test
Check if WebRTC is exposing your real IP address. Detect local, public, and mDNS candidates with real-time monitoring.
Earth Meter
Watch 20 world statistics update live: population, environment, energy, technology, economy.
System Diagnostics
Check CPU, GPU, memory, battery, storage, network, and browser capabilities. Get a health score, run a benchmark, and receive personalized recommendations.
DNS Lookup
Look up DNS records for any domain. All record types supported, results from multiple resolvers.
WHOIS Lookup
Look up registration details for any domain name including registrar, dates, nameservers, and DNSSEC status.
Redirect Checker
Enter a URL to see the full redirect chain with HTTP status codes, response times, and server details.
MAC Address Lookup
Identify the manufacturer of any network device by MAC address, generate random MACs for testing, and convert between all standard formats.
Games
Memory Game
Free online memory game for brain training and cognitive exercise
Snake Game
Free online snake arcade game 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!
Volleyball Game
Free volleyball game for two players. Play against AI, together on one keyboard, or online with friends.
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.
Flood Fill
Fill the entire board with one color in the fewest moves possible.
Nonogram
Use number clues to fill cells and reveal hidden pixel art pictures. 20+ puzzles from easy to hard.
Tangram
Rearrange seven shapes to match the target silhouette. Drag, rotate with R, flip parallelograms with F.
Games for Cats
10 interactive browser games designed for cats to play on tablets, phones, and screens.
Bouncy Paws
A fun jumping game for kids — help a cute cat bounce from platform to platform and reach for the sky.
Pipe Puzzle
Rotate pipe segments to connect the water source to every endpoint. Tap or click to rotate.
Dino Runner
Play the classic dinosaur runner game — jump over obstacles and set your high score
Air Hockey Game
Free air hockey game with single player, local and online multiplayer modes, power-ups, and 4 table themes.
Woodblocks
Drop wooden shapes onto the grid, clear lines, and beat your record.
Tic Tac Toe
Play tic tac toe online against smart bots or with friends by shareable link
Checkers
Play checkers online — Russian, international, American or English rules, vs AI bot or by shareable link
Egg Catcher
Browser remake of the Soviet LCD handheld — catch eggs in the basket
Funny Faces
Doodle face constructor for kids — mix parts, roll the dice, print or share
Pocket Pet
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GIF Animation
Gaming
Gaming PC Scanner
Scan your PC hardware and get a gaming readiness score with recommendations.
Reaction Time Test
Measure your reaction speed in visual, audio, and reflex modes with millisecond precision.
Aim Trainer
Practice your mouse aim with 4 game modes and difficulty levels
Gaming Ping Test
Measure your network latency to game server regions worldwide
Input Lag Test
Measure the delay from mouse click to visual response with detailed lag breakdown.
Accessibility
Communication Board
Free AAC communication board with symbols and keyboard for nonverbal communication
Speech Pacer
Visual metronome for speech pacing with breathing coordination and recording.
Visual Schedule
Visual daily schedule with icons, timers, and transition alerts for autism and ADHD.
Dyslexia Reader
Dyslexia-friendly reader with special fonts, bionic reading, colored overlays, and text-to-speech.
Reading Ruler
Visual reading ruler and color overlay to help with dyslexia and visual stress.
Color Reader
Camera color identifier for blind and visually impaired users
Color Accessibility Checker
Pick two colors to check contrast ratio and colorblind visibility.
Live Captions
Free live captions in your browser. See speech as text in real time.
Sound Alert
Monitor loud sounds remotely.
Sign Language Dictionary
Search and learn sign language visually.
Fingerspelling Practice
Practice fingerspelling in 8 sign languages with interactive quizzes and hand shape diagrams.
Document Reader
Upload a PDF, DOCX or TXT file and listen to it read aloud with bookmarks, speed control and keyboard navigation.
Image to Sound
Convert images to sound online free.
Audio Compass
Navigate by sound with a 3D spatial audio compass.
Voice Navigator
Control this page with voice commands: scroll, click, go back, and more.
Electronics
Ohms Law Calculator
Calculate voltage, current, resistance, and power instantly. Interactive Ohm's Law wheel, animated circuit diagram, and practical presets.
Resistor Color Code Calculator
Decode resistor color bands or find band colors by resistance value. Interactive SVG, 4/5/6 bands, tolerance range, E-series matching.
Capacitor Code Decoder
Decode 3-digit capacitor markings to pF/nF/µF or find the code from a capacitance value. Voltage ratings, tolerance codes, unit converter.
SMD Code Decoder
Decode SMD component markings — 3-digit, 4-digit, and EIA-96 codes for resistors and capacitors. Reverse lookup and package size reference.
LED Resistor Calculator
Calculate the current-limiting resistor for any LED circuit. Color presets, series/parallel arrays, power warnings, nearest E24 value.
Voltage Divider Calculator
Calculate voltage divider output, find R1/R2 from desired Vout, E24 matching, load effects, tolerance analysis, and power dissipation.
Wire Gauge Calculator (AWG)
Find the right wire gauge for your project. AWG↔mm² converter, voltage drop calculator, ampacity tables, copper and aluminum support.
PCB Trace Width Calculator
Calculate minimum PCB trace width for a given current using IPC-2221 standard. Supports internal/external layers, multiple copper weights, and voltage drop.
555 Timer Calculator
Calculate NE555 timer circuits — astable and monostable modes. Frequency, duty cycle, waveform preview, and reverse component calculation.
Circuit Simulator
Build and simulate electronic circuits in your browser. Drag-and-drop components, animated current flow, real-time voltage and current readouts.
Entertainment
Text Tools
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 punctuation and spelling for 7 languages — commas, periods, dashes, typos. Rule explanations and one-click fix.
World Alphabets
Interactive alphabet guide for 12 languages. Click any letter to hear its pronunciation. Learn mode + quiz mode.
Number to Words
Spell numbers and amounts with real grammar — seven languages, currency, ordinals, cheques and batch mode.
Keyboard Layout Converter
Convert between 12 keyboard layouts with auto-detection — QWERTY, Cyrillic, Korean, Arabic and more.
Clocks & Time
Online Clock
Six clock types with educational guides and timezone support.
Online Stopwatch
Precise online stopwatch with laps, splits, sparkline and shareable link
Countdown to Date
Live countdown timer to any date with themes, full-screen and shareable link
Military Time Converter
Convert between 24-hour military time and 12-hour AM/PM format with live sync, batch mode and reference chart.
Moment of Silence
Light a virtual candle and observe a moment of silence to honor someone's memory. Timer, ambient sounds, personalization.
Time Blindness Helper
Visual countdown timer for ADHD time blindness with event tracking and alerts
Online Chess Clock
Free chess clock for two players on one device — Bullet, Blitz, Rapid, Classical with Fischer, Bronstein and delay modes.
Kitchen Timer
Set multiple cooking timers with preset recipes and sound alerts.
Watch Battery Finder
Find the exact battery for your watch by model.
Images
3D printing
3D Print Cost Calculator
Filament + electricity + wear — with local STL parsing
Filament Length ↔ Weight Converter
20+ material presets — PLA, PETG, ABS, TPU, Nylon, carbon-filled and more
G-code Viewer Online
Layer-by-layer toolpath, time and filament estimates
Lithophane Generator
Image → grayscale height map → STL — flat or curved
Temperature Tower Generator
Parametric STL + G-code with M104 per segment — any printer, any filament
Gridfinity Bin & Baseplate Generator
Parametric bins and baseplates — export STL for any 3D printer
Calibration Cube Generator
XYZ cube, retraction tower and flow tower — parametric, export STL
Islam
Digital Tasbih
A digital tasbih with target presets, multi-dhikr tracker and progress memory.
Hijri Converter
Today's Islamic date, two-way date converter, and a monthly Hijri calendar with holidays.
Zakat Calculator
Enter your assets and liabilities in any currency; the calculator checks Nisab and computes 2.5%.
Qibla Finder
Live mobile compass, exact bearing to the Kaaba, and distance to Mecca.
Prayer Times
Five daily prayers with multiple calculation methods, Asr madhab choice and a live countdown.
Projectors
Projector Test Patterns
Focus, color, geometry, contrast and convergence patterns. Control from your phone via QR code.
Projector Throw Distance Calculator
Find the right placement for any projector. Works with raw throw ratio — no model lookup required.
Projector Screen Size Calculator
Diagonal to width × height for any aspect ratio, plus optimal viewing distance per THX (36°) and SMPTE (30°).
Projector Focus Test
Five focus patterns to lock perfect sharpness on any projector. Fullscreen, keyboard and swipe nav.
Projector Keystone Alignment Grid
Adjustable fullscreen grid with edge markers for keystone, lens shift and geometry calibration.
Projector Lumens Calculator
Get the recommended ANSI lumens for your screen size, room lighting and content type (SDR/HDR).
Projector Color Temperature Test
Eight calibration points from warm 2700K tungsten through D65 daylight to 9300K cool. Fullscreen with keyboard nav.
Projector Gamma Test
Side-by-side gamma reference patterns for 1.8, 2.2, 2.4 and BT.1886. The 1px-stripe half should blend with the reference grey at correct gamma.
Projector vs TV
Tell us your budget, room and use case. Get a clear recommendation with a side-by-side comparison.
Viewing Distance Calculator
Resolution-aware calculator. Tells you minimum, optimal and maximum seating distance for your screen — 4K lets you sit closer than 1080p.
AV Sync (Lip Sync) Test
Synchronised flash + click. Record on your phone, count frames between flash and audio peak, multiply by 16.7 ms.
Presentation Countdown
Pick a duration, press Start. Huge digits fill the projector — readable from anywhere in the room. Beeps at countdown < 10 s and at zero.
Speaker Positioning Guide
Top-down diagrams for each system. Shows correct angles per Dolby/THX standards: front 30°, surround 90–110°, rear 150°, height ±45° elevation.
Projector Warmup / Run-In
Auto-cycles colour fields, gradients and motion patterns for the duration you set. Helps equalise panels on a new LCD or DLP projector.
Projector TCO Calculator
Total cost of ownership over the period you choose: purchase + replacement lamps + electricity. Reveals whether a lamp or laser projector saves money for your usage.
Projector Camera Analyzer
Point your phone camera at the projected image. Get live RGB histogram, white balance check, 9-zone uniformity score, and clipping detection.
Projector 3D Test
Five test patterns for 3D projector calibration: anaglyph, L/R separation, depth, crosstalk, convergence. Wear your 3D glasses (red-cyan or active shutter).
Projector Edge Blending
Soft-edge gradient overlap pattern for multi-projector setups. Adjustable overlap percentage, gamma-correct ramp, four edges.
Bias Light Calculator
Calculates LED strip length, recommended brightness, and the right colour temperature for the bias light behind your screen.
DIY Screen Paint Calculator
Specifies the right grey paint (Behr or Sherwin-Williams) for your room lighting and calculates how much paint, primer and pearl additive you need.
Projector HDR Test
PQ-encoded test patterns for HDR projectors: nit-step ramp, clipping check at 800–1500 nits, near-black detail, peak-white reference, Rec.709 vs Rec.2020 gamut comparison.
Projector Noise Meter
Microphone-based sound-level meter with A-weighting. Place phone 1 m from projector, press Start, get peak/avg/min readings.
Household Tools
Kitchen Converter
Convert cooking measurements with ingredient-specific accuracy.
Recipe Scaler
Paste a recipe, change the serving size, get rescaled ingredients instantly.
Household Budget
Track household income and expenses with visual charts and 50/30/20 analysis.
Cleaning Schedule
Create a personalized cleaning schedule for your home with tasks and time estimates.
Biology & Microscopy
Spectrogram Lab
Analyze sonograms and spectrograms of wildlife sounds: birds, bats, whales, frogs, insects.
Gel Analyzer
Free browser-based gel electrophoresis image analyzer with 20+ built-in ladders.
DNA Analyzer
Complete DNA/RNA sequence analysis toolkit — free, in your browser.
Cell Counter
Automatic cell counting and microscopy image analysis — free, in your browser.
Calculators
Percentage Calculator
Percent of a number, percent change, discount, tip, VAT, markup
Date Difference Calculator
Days between two dates, business days and holidays
Ring Size Calculator
Pick a method below. Everything runs in your browser.
Watch Size Calculator
Wrist → ideal case diameter, lug-to-lug, strap width
Tools by Profession
Musicians & Producers
Online music production tools: change pitch & tempo, find BPM & key, EQ, reverb, mix tracks, convert...
Podcasters
Podcast editing toolkit: trim episodes, remove silence, denoise, enhance audio, compress files, conv...
Sound Engineers
Professional audio tools: spectrum analysis, forensics, watermarking, mixing, mastering, noise reduc...
Video Creators
Video editing tools: trim, crop, compress, add music, create GIFs, manage subtitles. Free browser-ba...
Streamers & Broadcasters
Streaming tools: mic test, noise reduction, voice effects, screen recording, live captions. Free for...
Content Creators
Content creation tools: edit audio & video, resize images, generate QR codes, transcribe speech. Fre...
Gamers
Gaming tools: GPU/CPU benchmark, reaction test, aim trainer, display tests, ping test. Free hardware...
Students
Study tools: speech-to-text, text formatting, brain training, focus sounds, typing practice. Free fo...
Educators & Teachers
Teaching tools: text-to-speech, visual schedules, sign language, live captions, accessibility checke...
Developers & IT Pros
Developer tools: DNS lookup, IP info, browser diagnostics, hardware tests, QR codes, accessibility c...
Electronics Enthusiasts
Electronics tools: resistor calculator, Ohm's law, PCB trace, 555 timer, LED, circuit simulator. Fre...
Audiophiles
Audio testing tools: speaker test, frequency sweep, sound meter, audio analysis, format conversion....
Accessibility Users
Accessibility tools: screen reader, color checker, sign language, live captions, dyslexia reader. Fr...
Healthcare Professionals
Health screening tools: cognitive tests, color vision, dyslexia screening, communication boards. Fre...
Parents & Families
Family tools: baby monitor, kitchen converter, budget planner, kids' games, alarm clock. Free househ...
Pet Owners
Pet tools: dog whistle, pest repellers, cat games, ultrasonic generator. Free tools for pet owners.
Security & Privacy
Privacy tools: VPN checker, browser fingerprint, WebRTC leak test, file encryption, steganography. F...
Wellness & Meditation
Wellness tools: white noise, binaural beats, breathing exercises, cognitive training. Free relaxatio...
Audiobook Narrators
Audiobook tools: ACX mastering, compliance check, noise reduction, voice enhancement, chapter splitt...
Jewelry & Watches
Ring size calculator, watch size guide and battery finder. Measure, convert, and find the perfect fi...
For Muslims
Online Islamic tools: prayer times, qibla compass, Hijri calendar, zakat calculator, digital tasbih....
Projector Owners
Free browser tools for projector owners: throw distance calculator, screen size matcher, focus and c...
Sports & Athletics
Online tools for sport and training: stopwatch with laps, reaction-time test, breathing exercise, co...
Productivity
Browser tools for time-boxed work: stopwatch, focus timer, kitchen timer, alarms, world clock, count...
Blog
Blog
Guides and tips on audio editing
How to Boost MP3 Volume Without Losing Quality
Learn how to increase the volume of MP3 and other audio files online without dis...
MP3 vs WAV vs FLAC: Which Audio Format Should You Choose?
A practical comparison of MP3, WAV, and FLAC audio formats. Learn the difference...
5 Free Ways to Test Your Speakers and Headphones Online
Check if your speakers and headphones work correctly with these 5 free online te...
What Is LUFS, dB, and RMS? Understanding Audio Loudness Levels
Learn the difference between LUFS, dBFS, RMS, and peak loudness. Platform standa...
How to Remove Background Noise from Audio Recordings
Learn proven techniques to remove background noise from podcasts, voiceovers, an...
Audio Recording Tips for Beginners: A Complete Starter Guide
Learn essential audio recording tips for beginners. From choosing the right micr...
How to Make a Ringtone from Any Song: Step-by-Step Guide
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