📝 ASCII Table
Full ASCII table with decimal, hex, octal, binary and character codes. Search and copy instantly.
📐 Aspect Ratio
Scale dimensions proportionally.
💾 Backup
Export & restore all app data.
🏷️ Barcode Generator
Generate EAN, UPC, Code 128, Code 39 and IMEI barcodes instantly. Download as image or print.
🔖 Barcode Scanner
Scan EAN, UPC, Code 128 and more with your camera. Works in your browser, no app needed.
🔢 Base Converter
Convert between binary, hex, octal, decimal instantly. Works offline.
📝 Base64
Encode or decode Base64 strings instantly. Paste or type, no upload, no server involved.
🏇 Bet Tracker
Parimutuel pool betting.
📢 Big Text
Huge message across the room.
💵 Bill Splitter
Add expenses and people, then see who owes whom. Settle up fairly in seconds.
🎂 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
Transpose chords up or down. Perfect for adapting songs to your vocal range or instrument key.
🎨 Color Converter
Convert colors between HEX, RGB, HSL and more. Pick a color or paste any format — instant conversion.
🎨 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
Set a date and time, watch the countdown to your event. Adjustable colors and fonts.
⏰ Cron Explainer
Paste a cron expression and see it decoded into plain English. Perfect for debugging schedules.
📷 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
Count days between dates or count down to a future date. See total and remaining days instantly.
🔲 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 Text
Encrypt text with AES-256-GCM in your browser. Paste text, set a password, copy encrypted result. Offline, reversible.
🔐 Entropy Calculator
Measure password strength.
📅 Event QR
Calendar event as QR & .ics file.
🧹 EXIF Remover
Remove EXIF metadata and GPS location from photos. Files stay on your device, no upload, no tracking.
💸 Expense Log
Simple spending logbook with monthly total.
🎨 Eyedropper
Free online eyedropper tool and color picker. Pick colors from any part of your screen and copy HEX values.
⏳ Fasting Timer
Start a fast, track elapsed vs goal.
⭐ Favicon Generator
All favicon sizes from one image.
🏦 Financial Planner
Month-by-month payments, income, and savings with a rolling balance.
🃏 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 & Decompress
Compress or decompress text and files with gzip. Paste or upload, instant results. No size limits.
✅ Habit Tracker
Build daily streaks, one checkbox at a time.
#️⃣ Hash Generator
Compute SHA-256, MD5 and other hashes. Paste text or upload a file — everything stays in your browser.
🤕 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
Resize images instantly in your browser. Download as JPEG, PNG or WebP, nothing uploaded to any server.
🖼️ Image to Base64
Data URIs from any image.
📱 IMEI Barcode
Generate a barcode from a valid IMEI number. Validate IMEI and create a Code 128 barcode instantly.
🎸 Instrument Tuner
Mic pitch detection.
🏋️ Interval Timer
Work/rest rounds with beeps.
📈 Investment Calculator
Project investment growth.
🧾 Invoice Generator
Line items, VAT, Pay by Square QR, reusable templates. Print-ready and XML-exportable.
{ JSON Formatter
Paste messy JSON, get it formatted with syntax highlighting. Errors highlighted in red. Copy formatted result instantly.
🔐 JWT Decoder
Decode JWT tokens locally. The token never leaves your browser — inspect headers and payloads safely.
☕ Keep Awake
Stop screen from sleeping.
⌨️ Keycode Viewer
See JavaScript key event values, keycodes and key code tester. Press any key to view keycode, code and which values.
⌨️ Keystroke Test
Test keyboard speed and ghosting. Measure keys per second and per minute. Instant results, no calibration needed.
🍲 Kitchen Timer
Up to 4 named countdowns.
🪢 Knot Guide
Essential knot reference.
💡 LED Resistor
Calculate resistor value for LED circuits. Free LED resistor calculator — works offline in your browser.
💡 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
Set a meditation duration with optional breathing cues. Timer rings softly at the end.
💸 Meeting Cost
Live ticking cost of a meeting.
🌍 Meeting Overlap
When can everyone talk?
🎵 Tap Tempo & Metronome
Tap to find your BPM or use the metronome. Real-time tempo detection as you tap — adjust the speed instantly. Works offline.
🚗 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.
🌊 Tone Generator
Generate sine wave tones or white noise online. Adjust frequency and volume, play instantly. Useful for hearing tests, audio work, meditation.
📝 Note Taker
Write Markdown notes with live preview. Your notes stay on your device, no server, no signup.
🔟 Number to Words
Convert numbers to words in English. Type 1234 and see it written out — numbers in words instantly, no signup.
🏋️ One-Rep Max
Weight × reps → estimated 1RM.
💬 P2P Chat
Chat privately peer-to-peer with files. No server, no account — everything stays between you and them.
📁 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 lot cost calculator. Free parking meter — works offline.
🚗 Parking Spot
Remember where you parked with label, GPS & photos.
🔑 Password Generator
Generate strong random passwords. Choose length and character sets instantly. Copy with one click.
📄 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.
🎤 NATO Phonetic Alphabet
Reference and converter: Alpha, Bravo, Charlie … Zulu. Look up codes or convert any text to phonetic spelling instantly.
🪴 Plant Watering
Track when plants need water, log with one tap.
🍅 Pomodoro
25 minutes of focus, then 5 minutes rest. Build sessions to keep going longer.
⬜ QR Code Generator
Create QR codes for text, URLs, Wi-Fi and more. No signup, no tracking — download instantly.
📷 QR Code Scanner
Scan QR codes and barcodes with your webcam. Point and decode instantly, no app needed.
🎯 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 with live match highlighting. Test against sample text instantly, see all matches and groups.
🏠 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
Add items, check them off as you shop. Saves automatically to your device. Works offline.
🪞 Signal Mirror
Emergency signaling.
👕 Size Converter
EU, US & UK clothing sizes.
✍️ Sketch Pad
Draw sketches and signatures with mouse, finger or stylus. Download as PNG, no signup, no ads.
😴 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. Free online mic dB meter and sound level meter — works in your browser.
🔊 Speaker Test
Left, right & sweep.
⏰ Speaking Clock
Browser announces time.
🎤 Speech to Text
Speak and let your browser transcribe it to text. Works in most browsers on most devices.
👁️ Speed Reader
Paste text, set reading speed (WPM) and watch one word at a time. Practice speed reading offline.
⚖️ Spirit Level
Check if surface is level.
🗃️ SQL Formatter
Pretty-print SQL as you paste.
📶 SSID Generator
Generate random SSID names for your Wi-Fi network.
⏱️ Stopwatch
Start, pause and reset. Track and review laps. Perfect for workouts or timing.
🌐 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 the spacebar or screen to find BPM. Real-time tempo display updates instantly as you tap. Works in any browser.
📜 Teleprompter
Paste a script and read along as it scrolls. Adjust speed and text size for your pace.
🔀 Text Diff
Paste two texts to see line-by-line differences. Color-coded additions and removals. Instant results.
🔊 Text to Speech
Paste text and hear it read aloud. Adjust speed and voice. Useful for proofreading or accessibility.
⏰ Timezone Converter
Convert meeting times, flight times and deadlines between timezones instantly. See time in both zones side-by-side.
💵 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 typing speed (WPM) and accuracy in real-time. Results show your performance — compare sessions to track improvement.
🕵️ Unicode Inspector
Detect invisible characters, zero-width spaces, non-ASCII and hidden symbols. Paste text to inspect every Unicode code point.
📏 Unit Converter
Convert length, weight, temperature, volume and more instantly. Switch between metric and imperial, no refresh needed.
⚖️ Unit Price
Which package is the better deal?
⏱️ Unix Timestamp Converter
Convert Unix timestamps to human dates and back instantly and offline.
🔗 URL Parser
Break URLs into parts.
🌐 User-Agent Parser
Browser, OS & device from a UA string.
🔑 Random UUID Generator
Generate random UUIDs (v4) instantly. Copy with one click, no server involved — works in your browser.
💉 Vaccination Tracker
Track all your vaccinations with flexible time intervals. Set reminders in days, months or years — completely private, works offline.
👤 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
Find your GPS coordinates and current location. Get my coordinates and see where am I — free, no signup, works in browser.
📶 WiFi QR Code Generator
Generate a QR code for your Wi-Fi network. Share with guests — they scan to connect instantly. With or without password.
✨ Wishlist
Things you want, optional prices.
🔤 Word Counter
Count words, characters and reading time in real-time. Results update as you type. Fully private.
⏱️ Work Hours
Clock in/out, weekly total.
🏋️ Workout Log
Log exercises, sets & reps. No coaching, no plans.
🌍 World Clock
Save timezones and see current time everywhere at once. Stays synced to now.
🔄 YAML ⇄ JSON
Convert either way, instantly.