Free tools that run in your browser.
Test a device, print a template, check an image, spin a wheel. Fast, precise tools with no sign-up, no uploads and no watermarks.
Live previews
Controller Tester
Buttons, triggers, stick drift and rumble on any PlayStation, Xbox, Switch or PC controller.
AI Image Detector
Real evidence, not made-up percentages.
Pay Period Calendar
Enter one payday and see your whole year: every paycheck, the months with an extra one, and paydays moved for weekends and holidays.
Wheel Spinner
Fair, truly random picks.
Refresh Rate Test
Real Hz, frame timing, dropped frames
Extract Audio from Video
MP3, M4A, WAV or Opus from a video
Keyboard Tester
Type on your keyboard and watch the picture: working keys turn green, a key that stays white didn't register, and keys that type twice get flagged.
EXIF Viewer & Remover
See and strip hidden photo data
Turkey Calculator
Turkey size, thawing and cooking times
Printable Calendar
Design a month, print a PDF.
Microphone Test
Hear how you sound and get a plain-English diagnosis.
Hearing Test
Your upper frequency limit, ear by ear
Super Bowl Squares
10×10 board with a fair number draw
Height Comparison
Line up to 12 people or characters to scale and see exactly how much taller one is than another, in centimetres and inches.
Webcam Test
See your camera's real resolution and frame rate, get a lighting and focus score with concrete fixes, and check it's ready for calls and online exams.
Bingo Card Generator
Up to 200 unique cards, print-ready
Secret Santa Generator
Draw names with rules like “couples can't draw each other”, then send everyone a private link that reveals only their own match.
Dead Pixel Test
Find dead, stuck and hot pixels
BPM Finder
Exact tempo from a song or your taps.
Content Credentials Checker
Who made it, with which app (C2PA)
Graph Paper
Square, engineering, dot, isometric, hexagon and polar grid paper in any size, as an exact-size PDF ready to print.
Audio to MIDI
Turn a recording of an instrument or your voice into a MIDI file, with a piano-roll preview. The AI runs on your device, so nothing is uploaded.
Tone Generator
Type a frequency from 1 Hz to 22 kHz or a note like A4 and press Play to hear a sine, square, triangle or saw tone, then save it as a WAV file.
Lined Paper
College, wide and primary ruled
Video Compressor
Shrink to an exact size.
Mouse Tester
Buttons, scroll, double clicks, polling
Speaker & Headphone Test
Left and right, bass depth, phase
Black Screen
A full-screen solid color in one click
Name Tracing Worksheet
Dotted-letter tracing worksheets
Reaction Time Test
Click on green or race F1 lights
2048
Slide and merge number tiles
3D QR Code Generator
3D QR illusions to share or print
Aim Trainer
Six aim drills with shot stats
Barcode Generator
EAN, UPC and Code 128 barcodes
Breathing Exercise
Guided box, 4-7-8 and calm breathing
Copy and Paste Symbols
Hearts, arrows, ticks, math, currency
Countdown to a Date
Days until any date, live
Decibel Meter
Sound level in dB, noise log
Dice Delve
Dice-rolling party roguelike
Dice Roller
3D dice with sound, d4 to d100
Dog Age Calculator
Dog years to human years
Drum Machine
16-step beats, 808 and 909 kits
Eclipse Simulator
Local times and sky for Aug 2027
Ecosystem Simulator
Meadow sandbox, 6 scenarios
Endless Highway
Endless traffic-dodging car game
Extract Frames from Video
Save video stills as PNG or JPG
Fight Stick Tester
Buttons, motions, SOCD, chatter
Flooring Calculator
Boxes, tiles, grout or carpet
Furniture Fit Calculator
Will the sofa fit through?
Golf
2D golf, daily course, 20 skills
GPU Tester
Graphics card, WebGL, WebGPU, benchmark
HELOC Calculator
HELOC limit, payments and payment shock
Image Compressor
Shrink photos to a size like 100 KB
Interest Calculator
Simple vs compound interest, solved any way
Joystick Tester
Axes, hat switch, buttons, drift
Kaomoji
Tap-to-copy faces by mood
Lemonade Stand
Business sim, 30 summer days
Meadow Clicker
Idle bee and flower game
Meditation Timer
Bells, intervals, sounds, guidance
MIDI Tester
Notes, velocity, dead keys, knobs
Minesweeper
Classic mines, no-guess mode
Odds Calculator
Odds conversion, payouts, parlays, vig
Online Timer
Countdown with alarm, pie and full screen
Open Graph Checker
Preview and fix link share cards
Paint Calculator
Paint and cans for your rooms
PNG to SVG Converter
Trace PNG or JPG into SVG
Pumpkin Stencil Maker
Photo, text or design to carving stencil
Puppy Weight Calculator
Estimate a puppy's adult weight
QR Code Generator
Styled QR codes with logos
QR Code Scanner
Scan and decode any QR code
Radius Map
Draw radius circles on a map
Ramadan Timetable
Sehri and iftar times, printable
Room Planner
Furnish a room in 3D
Snow Day Calculator
Chance of a snow day tomorrow
Space Shooter
Arcade shooter with bosses
Steering Wheel Tester
Rotation, pedals, spikes, shifter
Sudoku
Daily puzzle, hints, 4 levels
SynthID Checker
Google AI markers, SynthID steps
Text Art
ASCII pictures and big letters
Time Card Calculator
Hours, overtime and pay from punches
Top-Down Racer
Top-down racing, 6 tracks, ghosts
Typing Test
WPM, accuracy, weak-key practice
Virtual Piano
Play, record and save piano online
Voice Changer
Robot, chipmunk, deep and more voices
Wallpaper Calculator
Rolls of wallpaper and paste
White Noise Generator
Brown, pink noise and nature mixer
All tools
86 in 11 hubs- Controller TesterButtons, triggers, stick drift, rumble
- Fight Stick TesterButtons, motions, SOCD, chatter
- Joystick TesterAxes, hat switch, buttons, drift
- Keyboard TesterDead keys, double typing, rollover
- Mouse TesterButtons, scroll, double clicks, polling
- Steering Wheel TesterRotation, pedals, spikes, shifter
- Decibel MeterSound level in dB, noise log
- Hearing TestYour upper frequency limit, ear by ear
- Microphone TestLevel, noise, clipping and playback
- MIDI TesterNotes, velocity, dead keys, knobs
- Speaker & Headphone TestLeft and right, bass depth, phase
- Tone GeneratorAny frequency or note, up to 3 tones
- Black ScreenA full-screen solid color in one click
- Dead Pixel TestFind dead, stuck and hot pixels
- GPU TesterGraphics card, WebGL, WebGPU, benchmark
- Refresh Rate TestReal Hz, frame timing, dropped frames
- Webcam TestResolution, fps, lighting and focus
- Reaction Time TestClick on green or race F1 lights
- Typing TestWPM, accuracy, weak-key practice
- Pay Period CalendarEvery payday of the year at a glance
- Printable CalendarMonthly or yearly, as a print-ready PDF
- Graph PaperSquare, dot, isometric, hex and polar
- Lined PaperCollege, wide and primary ruled
- Name Tracing WorksheetDotted-letter tracing worksheets
- Bingo Card GeneratorUp to 200 unique cards, print-ready
- Pumpkin Stencil MakerPhoto, text or design to carving stencil
- Dice Roller3D dice with sound, d4 to d100
- Wheel SpinnerFair random picks from your list
- Secret Santa GeneratorDraw names with rules, private links
- Super Bowl Squares10×10 board with a fair number draw
- Height ComparisonLine up to 12 people to scale
- 2048Slide and merge number tiles
- MinesweeperClassic mines, no-guess mode
- SudokuDaily puzzle, hints, 4 levels
- Aim TrainerSix aim drills with shot stats
- Dice DelveDice-rolling party roguelike
- Golf2D golf, daily course, 20 skills
- Space ShooterArcade shooter with bosses
- Endless HighwayEndless traffic-dodging car game
- Top-Down RacerTop-down racing, 6 tracks, ghosts
- Meadow ClickerIdle bee and flower game
- Ecosystem SimulatorMeadow sandbox, 6 scenarios
- Lemonade StandBusiness sim, 30 summer days
- Image CompressorShrink photos to a size like 100 KB
- PNG to SVG ConverterTrace PNG or JPG into SVG
- EXIF Viewer & RemoverSee and strip hidden photo data
- AI Image DetectorReal AI-generation evidence, no guesses
- Content Credentials CheckerWho made it, with which app (C2PA)
- SynthID CheckerGoogle AI markers, SynthID steps
- Open Graph CheckerPreview and fix link share cards
- Extract Audio from VideoMP3, M4A, WAV or Opus from a video
- Extract Frames from VideoSave video stills as PNG or JPG
- Video CompressorShrink to an exact size like 10 MB
- Audio to MIDITurn a recording into a MIDI file
- BPM FinderExact tempo from a song or your taps
- Drum Machine16-step beats, 808 and 909 kits
- Virtual PianoPlay, record and save piano online
- Voice ChangerRobot, chipmunk, deep and more voices
- HELOC CalculatorHELOC limit, payments and payment shock
- Interest CalculatorSimple vs compound interest, solved any way
- Odds CalculatorOdds conversion, payouts, parlays, vig
- Time Card CalculatorHours, overtime and pay from punches
- Turkey CalculatorTurkey size, thawing and cooking times
- Dog Age CalculatorDog years to human years
- Puppy Weight CalculatorEstimate a puppy's adult weight
- Snow Day CalculatorChance of a snow day tomorrow
- Radius MapDraw radius circles on a map