📝 ASCII Table
Full ASCII table with decimal, hex, octal, binary and character codes.
📐 Aspect Ratio
Scale dimensions proportionally.
💾 Backup
Export & restore all app data.
🏷️ Barcode Generator
Generate barcodes from text: EAN, UPC, Code 128, Code 39.
🔖 Barcode Scanner
EAN, UPC, Code 128 & more.
🔢 Base Converter
Binary, hex, octal, decimal.
📝 Base64
Encode & decode base64.
🏇 Bet Tracker
Parimutuel pool betting.
📢 Big Text
Huge message across the room.
💵 Bill Splitter
Split multiple bills across a group and settle up.
🎂 Birthday Tracker
Upcoming birthdays with days-until countdown.
🩸 Blood Pressure Log
Log readings with automatic classification.
🔥 BMR / TDEE
Daily calorie estimate from stats.
⚖️ Body Weight Log
Log your weight and track the trend.
🫁 Breathing Pacer
Box breathing to calm down.
📅 Business Days
Add or count working days.
🔩 Capacitor Decoder
Decode capacitor color bands.
🚗 Car Maintenance
Track oil changes, tyres & more. Never miss a service.
🔡 Case Converter
camelCase, snake_case & more.
± Character Picker
Copy em dashes, arrows & more.
♟️ Chess Clock
Two-player game timer.
🔒 Chmod Calculator
Unix permissions decoder.
🎸 Chord Transposer
Shift a chord sheet to a new key.
🎨 Color Converter
HEX ↔ RGB ↔ HSL.
🎨 Color Palette
Generate random colors.
👓 Colorblind Simulator
See images as colorblind users do.
🧭 Compass
Device magnetometer.
👤 Contact Notes
Notes & gift ideas, one card per person.
🌓 Contrast Checker
WCAG color contrast ratios.
⏲️ Countdown
Count down to zero.
⏰ Cron Explainer
Decode cron expressions.
📷 Crop Factor
Lens mm → full-frame equivalent.
📊 CSV ↔ JSON
Convert both directions.
🔄 Data Sync
Sync your tools data between devices, peer-to-peer.
📅 Date Difference
Days between dates, ages.
📆 Day Counter
Days since & until saved dates.
🔲 Dead Pixel
Fullscreen display check.
💰 Debt Payoff Calculator
Payoff date, total interest, extra payments.
📱 Device Status
Battery, network, hardware.
🎲 Dice Roller
Roll D&D dice with history.
🍽️ Dinner Picker
Can't decide? Let fate pick from your list.
🩺 Doctor Visits
Track regular check-ups and see what's overdue.
📷 Depth of Field
Near/far focus limits.
🖨️ DPI / Print Size
Pixels + DPI → inches & cm.
⏱️ Duration Adder
Sum up hours and minutes.
🔌 Electricity Cost
What a device costs to run.
🔐 Encrypt/Decrypt
Encrypt and decrypt text online with AES-256-GCM in your browser.
🔐 Entropy Calculator
Measure password strength.
📅 Event QR
Calendar event as QR & .ics file.
🧹 EXIF Stripper
Remove photo metadata & GPS.
💸 Expense Log
Simple spending logbook with monthly total.
🎨 Eyedropper
Pick colors from your screen.
⏳ Fasting Timer
Start a fast, track elapsed vs goal.
⭐ Favicon Generator
All favicon sizes from one image.
🃏 Flashcards
Local Q&A decks. Flip, know, again.
🔦 Flashlight
Camera flash or bright screen.
🧊 Fridge Expiry
Use-by dates, sorted by urgency.
⛽ Fuel Log
Track fill-ups, L/100km and spend.
🎮 Gamepad Tester
Test controller buttons & sticks.
🚗 GPS Speedometer
Speed from GPS.
🙏 Gratitude Journal
Three things you're grateful for today. Daily practice.
🗜️ Gzip
Compress and decompress gzip files and text online, locally in your browser.
✅ Habit Tracker
Build daily streaks, one checkbox at a time.
#️⃣ Hash Generator
SHA hashes as you type.
🤕 Headache Log
Track migraines & headaches. Severity, triggers, patterns.
🏠 Home Maintenance
Track HVAC filter, smoke alarm battery & more.
🔣 HTML Entities
Encode & decode & friends.
🏦 IBAN Validator
Check account numbers offline.
🪪 ID Expiry
Passport & licence renewals.
🖼️ Image Resizer
Shrink images, all on-device.
🖼️ Image to Base64
Data URIs from any image.
🎸 Instrument Tuner
Mic pitch detection.
🏋️ Interval Timer
Work/rest rounds with beeps.
📈 Investment Calculator
Project investment growth.
🧾 Invoice
Line items + tax, print-ready.
{ } JSON
Format and validate JSON.
🔐 JWT Decoder
Decode JWT tokens.
☕ Keep Awake
Stop screen from sleeping.
⌨️ Keycode Viewer
See JS key event values.
🍲 Kitchen Timer
Up to 4 named countdowns.
🪢 Knot Guide
Essential knot reference.
💡 LED Resistor
Calculate LED resistor value.
💡 Light Detector
Ambient light sensor.
📑 Line Tools
Sort, dedupe & shuffle lines.
📝 Live Pad
Shared real-time scratchpad. Both can type. Vanishes when you close the tab.
💳 Loan Calculator
Calculate loan payments.
📃 Lorem Ipsum
Placeholder text on demand.
📡 Maidenhead / QTH
Lat/lon ⇄ grid square.
💊 Medicine Tracker
Did I take my pills? One tap — records the time.
🧘 Meditation Timer
Mindfulness timer.
💸 Meeting Cost
Live ticking cost of a meeting.
🌍 Meeting Overlap
When can everyone talk?
🎵 Metronome
Web Audio rhythm keeper.
🚗 Mileage Log
Trips for tax or expenses.
🪞 Mirror
Front camera as a mirror.
😊 Mood Tracker
Daily mood check-in with 30-day history.
🌙 Moon Phase
Today's moon and what's next.
📡 Morse Code
Encode/decode morse.
🏷️ NFC Tags
Read and write NFC tags (NDEF) from your browser with Web NFC.
🌊 Noise Generator
White, brown, pink noise.
📝 Note Taker
Markdown notes with live preview, saved locally.
🔟 Number to Words
1234 in plain English.
🏋️ One-Rep Max
Weight × reps → estimated 1RM.
💬 P2P Chat
Private peer-to-peer chat and send files P2P over WebRTC.
📁 P2P File Transfer
Send files device to device. No server, no account, no size limit.
🏃 Pace Calculator
Distance, time & running pace.
🧳 Packing List
Trip checklist with presets for camping, beach & more.
🎨 Paint / Flooring
Room size → materials to buy.
🅿️ Parking Meter
Calculate parking cost and track time with a simple parking meter.
🚗 Parking Spot
Remember where you parked with label, GPS & photos.
🔑 Password Generator
Stateless password generation.
📄 PDF Merger
Combine PDFs, fully offline.
🔲 PDF Tiler
Tile a PDF page for printing — auto-crops and fits as many copies as possible on A4.
👟 Pedometer
Step counter.
％ Percentage
The three % questions.
🌸 Period Tracker
Private cycle tracking — data stays on your device.
🐾 Pet Care
Vaccines, flea, deworming & weight.
🎤 Phonetic Alphabet
NATO phonetic alphabet reference and letter-to-code converter.
🪴 Plant Watering
Track when plants need water, log with one tap.
🍅 Pomodoro
25 min work + 5 min break.
⬜ QR Code
Generate QR codes instantly.
📷 QR Scanner
Scan QR codes and barcodes with your webcam or camera.
🎯 Random Picker
Pick a name from a list.
⚡ Reaction Time
Test your reflexes.
📖 Readability
Flesch score & grade level.
📚 Reading Log
Track books you've read, are reading, or want to read.
🍳 Recipe Box
Save your favourite recipes. No clutter, no ads.
👨🍳 Recipe Scaler
Scale recipe ingredients by servings or weight.
🔍 Regex Tester
Test JavaScript regular expressions against sample text with live match highlighting.
🏠 Rent vs Buy
Rough break-even over N years.
⚡ Resistor Decoder
Decode resistor color bands.
🏛️ Roman Numerals
MCMXC ⇄ 1990.
✈️ Schengen 90/180
Track Schengen days under the 90/180 rule.
🏆 Scoreboard
Keep score on game night.
🎥 Screen Recorder
Screencasts: screen, voice & webcam.
📈 Seismometer
Vibration trace from sensors.
✍️ Shared Sketchpad
Draw together over WebRTC — everyone sees the same sketch in real-time.
⏱️ Shared Timer
Start a countdown and share it — everyone sees the same timer in real-time.
🛒 Shopping List
Track what you need to buy.
🪞 Signal Mirror
Emergency signaling.
👕 Size Converter
EU, US & UK clothing sizes.
✍️ Sketch Pad
Draw & sign, save as PNG.
😴 Sleep Calculator
Bedtimes by sleep cycles.
🛌 Sleep Log
Log each night, track your weekly average.
🔗 Slug Cleaner
Title → url-friendly-slug.
🎚️ Sound Meter
Measure sound level in decibels with your microphone.
🔊 Speaker Test
Left, right & sweep.
⏰ Speaking Clock
Browser announces time.
🎤 Speech to Text
Browser transcribes your voice.
👁️ Speed Reader
Free online speed reader and speed reading tool.
⚖️ Spirit Level
Check if surface is level.
🗃️ SQL Formatter
Pretty-print SQL as you paste.
⏱️ Stopwatch
Simple timer that counts up.
🌐 Subnet Calculator
CIDR to ranges & masks.
💳 Subscription Tracker
Know what you're paying for. Monthly total, renewal dates.
🌅 Sunrise & Sunset
Sun times and golden hour.
🏊 Swim & Bike Pace
Pace /100m or km/h.
🔢 Tally Counter
Count anything, one tap at a time.
🥁 Tap BPM
Tap along to find the tempo.
📜 Teleprompter
Auto-scrolling script reader.
🔀 Text Diff
Compare two texts line by line.
🔊 Text to Speech
Browser speaks your text.
⏰ Timezone
Convert times across timezones.
💵 Tip & Tax
Bill → tip → VAT → split.
🎼 Tone Generator
Pure tones, any frequency.
🔐 TOTP Codes
2FA codes from a secret, offline.
👆 Touch Tester
Multi-touch visualizer.
📡 Transfer Time
File size + speed → ETA.
⌨️ Typing Test
Measure your typing speed.
🕵️ Unicode Inspector
Inspect Unicode characters and detect invisible characters, zero-width spaces, and hidden symbols.
📏 Unit Converter
Convert units instantly.
⚖️ Unit Price
Which package is the better deal?
⏱️ Unix Timestamp
Timestamp ↔️ date converter.
🔗 URL Parser
Break URLs into parts.
🌐 User-Agent Parser
Browser, OS & device from a UA string.
🔑 UUID Generator
Generate random UUIDs (UUID v4) instantly with this free random UUID generator.
👤 Contact QR
Share contact details as a QR.
🎙️ Voice Recorder
Record audio, download it.
⚡ Voltage Divider
Calculate output voltage.
🛡️ Warranty Tracker
Item + purchase date + expiry countdown.
💧 Water Reminder
Track daily glasses of water, resets at midnight.
📍 Where Am I
Your GPS coordinates.
📶 Wi-Fi QR
Create a Wi-Fi QR code from your SSID and password.
✨ Wishlist
Things you want, optional prices.
🔤 Word Counter
Words, chars, reading time.
⏱️ Work Hours
Clock in/out, weekly total.
🏋️ Workout Log
Log exercises, sets & reps. No coaching, no plans.
🌍 World Clock
See time across timezones.
🔄 YAML ⇄ JSON
Convert either way, instantly.