Productivity & Lifestyle Tools
Secure password generators, study timers, unit pricing comparators, time zone converters, and daily decision matrixes to streamline your life.
All 182 Productivity & Lifestyle Calculators & Utilities
Filter the 182 tools below, sort them, expand a row for the full description, or keep one in your toolbox with the ๏ผ. Press / to jump to the filter.
-
๐ Account Recovery Lockout Map
โTo get into my email I need a code sent toโฆ my email.โ Map what unlocks what, then simulate losing your phone, a house fire or a forgotten password. Finds circular recovery loops and single points...
-
๐ Adulting Score Calculator
How well are you really adulting? Take this brutally honest assessment and find out.
-
๐ค AI Toolbox Generator
Build your own custom AI tools by combining different AI capabilities. Create, save, and share personalized mini-tools in minutes! โจ No coding required - drag, drop, and customize!
-
๐ Ambiguous Date Resolver โ Is 03/04 March or April?
A column of dates from an export, a bank statement or a colleague abroad: is it DD/MM or MM/DD? Looking at one date canโt tell you, but the whole column can. This tests every format against all val...
-
๐ค ASCII Banner Generator
Generate retro ASCII text banners and terminal art for code headers, GitHub READMEs, Discord bots, and CLI scripts.
-
๐ฃ๏ธ Awkward Silence Filler
The silence is deafening. Someone needs to say something. Let us help. (Results may make it worse.)
-
Birthday Reminder
No birthdays added yet. Add your first birthday above!
-
๐ข Blame Deflector 3000
Something went wrong? Don't worry โ it's definitely not your fault. Let science* find someone else to blame. *Not science.
-
๐ Bra Size Converter
Convert UK, US, EU/FR and AU band + cup. Sister sizes keep the same cup volume (one band up, one cup down). Brands still vary โ treat this as a starting letter, not a fitting.
-
๐ณ Business Card Size Guide
Print sizes and pixels for UK/EU (85 ร 55 mm), US (3.5 ร 2 in), Japanese and Chinese cards. Add 3 mm bleed if a printer asks for it. Not a design studio โ just the millimetres they keep getting wrong.
-
๐งณ Cabin Bag Size Checker
Type your suitcase in centimetres and see which common airlines it should fit, including wheels and handles as the airline measures them. Limits change โ confirm on the carrierโs site before you fly.
-
โ Will You Sleep Tonight? (Caffeine Check)
Caffeine has a half-life of roughly five hours, which is why the 4pm espresso is still in your system at midnight. Log what you drank and when, and find out how much will still be circulating at be...
-
๐ฏ๏ธ Candle Making Supplies Calculator
Fill a jar with water, weigh it, and youโve measured your candle. Enter vessel size and fragrance load โ get wax grams, fragrance grams, wick guidance and a full batch shopping list.
-
Career Path Planner
Map out your career goals, milestones, and track progress over time. Save and manage multiple career plans.
-
๐บ๏ธ Cartographer's World Forge
Forge an entire fantasy world from a single seed. Tectonic uplift raises mountains, rain shadows carve deserts, rivers find the sea, and civilisations rise where the land is kind. Every kingdom, to...
-
Cat Photo Viewer
Browse cat photos from free public APIs. Features infinite scrolling, favorites, and breed info.
-
๐ Censorship Monitor
Monitor Wikipedia blocks and Reddit content moderation in real-time. โ ๏ธ Educational tool - uses public APIs
-
โ๏ธ Cheap Flight Fare Finder
Work out what a genuinely cheap fare looks like on your route, then jump straight into the right searches. Pick your airports, say when you want to travel and type the best price you have found: th...
-
Chemistry Helper
Calculate molar mass, balance equations, analyze compounds, and reference periodic table data.
-
๐ Christmas Card Maker
Design and generate beautiful, custom HTML Christmas cards in seconds. Perfect for emails, social media, or personal websites.
-
๐
Santa's Naughty List Quiz
Take this scientific* holiday quiz to discover if you're getting coal or presents this Christmas! *Not actually scientific
-
๐งน Cleaning Schedule
Plan, track, and manage cleaning tasks with smart scheduling. Never forget a chore again!
-
๐ฌ ClipโtoโShorts Repackager
Upload a gameplay clip, pick a segment, and export a perfectly framed vertical short (9:16) or other preset. Adds caption safe zone and optional watermark.
-
๐ Clipboard History
Save and manage text snippets. Copy, pin, search, and organize your frequently used text. Persists in browser storage.
-
๐ Clothing Size Converter
Convert common adult clothing sizes between US, UK and EU for tops, dresses and menโs shirts. Charts are industry averages โ cut, stretch and brand vanity sizing still win. Measure twice.
-
๐งฅ Coat, Hoodie, or Regret?
The daily sartorial gamble, solved. Dial in the temperature, wind and rain, tell it how long you'll be out, and it will tell you what to wear โ with the correct level of weather-based sass.
-
๐ฎ Coincidence Finder & Synchronicity Tracker
Discover meaningful coincidences and synchronicities across multiple real-time data sources. Tracks news, numbers, dates, names, and global patterns!
-
๐ค AI Team Hub
AI-powered team management with workload balancing, predictive analytics, and automated optimization. โก Smart suggestions โข ๐ฏ Predictive deadlines โข ๐ Real-time analytics
-
๐จ Color Converter & Palette Harmony Studio
Convert between HEX, RGB, HSL, HSV, CMYK, and OKLCH color spaces, generate color harmonies, test WCAG 2.1 contrast ratios, and copy CSS color code.
-
Community Tool Library Scheduler
Turn a shared equipment list and borrowing requests into a conflict-checked lending schedule. Track which items are available, flag double bookings, and leave time for return and inspection.
-
๐ Commute Calculator
Calculate commute time, cost, and environmental impact. Compare different transportation modes. โ Tracks daily, weekly, monthly, and yearly totals
-
Compare Two Lists
Find missing items, overlaps and duplicates between two lists. Compare locally without uploading customer names, stock lists or other text.
-
๐คก Conspiracy Theory Generator
Generate absurd conspiracy theories that are somehow more believable than the real ones.
-
๐ Cost-Per-Use: Should You Buy It?
The antidote to impulse buying. Feed it a price and honest usage guesses, and it tells you whether that thing is a bargain, a luxury, or a future eBay listing.
-
โณ Countdown to Any Date
Holidays, exams, releases, birthdays, notice periods or a deadline you are trying to respect: pick a date and watch the days, hours, minutes and seconds tick down live. Also tells you the working d...
-
๐ผ๏ธ Crop Factor & 35 mm Equivalent
35 mm-equivalent focal length = actual focal length ร crop factor. Also shows equivalent f-number for depth of field (same framing). Field of view matches; light-gathering of the aperture does not ...
-
๐จ CSS Glass & Gradients
Design modern frosted glass (glassmorphism) components and mesh gradients. Real-time visual canvas with 1-click cross-browser CSS.
-
๐ Professional CV Builder
PROFESSIONAL CV CREATOR - Build ATS-optimized CVs with multiple templates, real-time preview, and export options. Used by career coaches worldwide.
-
โจ Curiosity Fact Deck
48 verified fascinating facts across space, nature, history, the body, Earth and technology โ with a fact of the day, favourites and a quiz mode that turns trivia into knowledge.
-
โ๏ธ Decision Matrix Scorer
Evaluate complex career, business, or lifestyle choices using weighted multi-criteria scoring. Removes emotional bias and highlights the winning tradeoff.
-
๐ฆ Dimensional Weight Calculator
Carriers bill the higher of actual weight and volumetric (dimensional) weight. Enter the box and compare IATA /6000, DHLยทFedEx /5000 and US domestic /139. Not a postage quote.
-
๐ Dog Photo Viewer
COMPLETE DOG VIEWER - Browse thousands of dog photos with breed information, favorites, and infinite scrolling. Multiple API sources for maximum reliability.
-
๐ฐ๏ธ DST Meeting Drift Predictor
โWhy is my weekly meeting suddenly an hour off?โ Because the US, Europe, and much of the Southern Hemisphere change clocks on different dates. Enter a recurring meeting and the attendeesโ cities to...
-
๐ 3D Function Plotter
Visualize 3D mathematical surfaces โ rotate, zoom, and explore equations in real time.
-
โ๏ธ The Element Hall
All 118 elements as numbered museum exhibits: discovery year, discoverers, name origin, category, state at room temperature โ plus curator's notes on two dozen showpieces and an honest word where d...
-
๐ค What Does That Emoji *Actually* Mean?
The generational emoji gap, decoded. Search or tap an emoji to see what it really means, how your boss probably reads it, and whether it's safe for the work chat. You will never send ๐ in the grou...
-
๐ช Event Seating Planner
Seat guests at tables for a wedding, party or dinner: households stay together, people you name are kept apart, and friends are seated together where possible. Your list never leaves the browser.
-
๐
Event Reminder
Set reminders for upcoming events with notifications, priorities, and recurrence options.
-
๐ฏ Exam & Study Planner
๐ A comprehensive exam planning and study management system for students and professionals. Track exams, create study schedules, set goals, and manage revision.
-
๐ Professional Excuse Generator
Generate increasingly absurd excuses for any situation. From "plausible" to "they'll never believe you."
-
โ๏ธ Extruded 3D Text Studio
Design chunky 3D logos: real perspective rotation (rendered slice-by-slice in software), adjustable extrusion depth, bevel light, backdrops and one-click PNG export. No WebGL, no libraries โ just m...
-
๐งต Fabric Yardage Estimator
Pattern envelopes quote fabric for one specific width, and most fabric is not sold in that width. This converts for the width you actually bought, then adds the three allowances people forget: a pa...
-
๐ Smart Flashcards
Create beautiful, interactive flashcards for effective studying. Supports rich text, categories, and spaced repetition.
-
๐ฉ Flat-Pack Confidence Meter
Enter the flat-pack battlefield armed with the truth: how many pieces, which tools, who's helping, and how many drinks deep you are. It will forecast your evening with alarming accuracy.
-
๐ Fluid Type Scale Generator
Generates a typographic scale where every size scales smoothly between two screen widths, using the CSS clamp() function โ no media queries, no jump at a breakpoint, and no text that is 14px on a p...
-
โฑ๏ธ Deep Focus Timer
Advanced Pomodoro timer with productivity tracking, ambient sounds, and progress visualization. Stay focused, maximize productivity!
-
โฝ Fuel Economy Converter: MPG โ L/100km โ km/L
Convert between UK MPG, US MPG, litres per 100 km, km per litre and miles per litre in one go โ or calculate your real-world economy from a fill-up (miles driven and litres added). Includes a cost ...
-
Smart Garden Task Planner
Plan, track, and grow your perfect garden with AI-powered suggestions and smart scheduling.
-
๐ฟ Garden Planning Assistant
Plan, track, and optimize your garden with planting schedules, care reminders, and plant databases. Grow your perfect garden!
-
Gift Helper ๐
Find the perfect gift with smart suggestions, reminders, and inspiration for every occasion.
-
๐ค๏ธ Go Outsideometer
A scientifically unserious instrument that measures how long it has been since you touched grass. Answer honestly, and it will tell you exactly how urgently you need to go outside โ then give you a...
-
Goal Tracker ๐ฏ
Set, track, and achieve your goals with progress monitoring, milestones, and motivational reminders.
-
ฯ Golden Ratio Crop Calculator
Grow or crop a rectangle to ฯ โ 1.618, place a golden-section grid, and convert any length into its complementary pair. Used by photographers and layout designers. Pure geometry โ no image upload.
-
๐ฌ Great Minds Quote Explorer
40 inspiring quotes from history's greatest scientists, inventors and thinkers โ each with context about who said it and why it matters. Search, filter by theme, save favourites.
-
๐งพ Group Expense Splitter & Settle Up
Shared house, road trip, group holiday or a flat's running costs: log who paid what and who it was for, and this works out everyone's balance and the fewest transfers that settle the whole group. E...
-
๐ Habit Tracker
Build consistent habits with visual streaks and daily tracking. Save your progress automatically!
-
๐ File Hash Checker
Verify file integrity and calculate cryptographic hashes. Compare hashes to verify file authenticity!
-
๐ Crypto & Hash Suite
Generate cryptographic hashes (SHA-256, SHA-512, MD5), HMAC signatures, and multi-format encodings (Base64, Hex, URL). Fast, client-side, and zero-knowledge.
-
๐ฉ Hat Size Converter
Convert head circumference to UK, US and cm hat sizes. US size โ circumference in inches รท ฯ. Measure just above the ears, level around the widest part. Felt hats often want a snug fit; straw can r...
-
๐ Advanced History Timeline Builder
Create interactive timelines, explore historical databases, and visualize events across civilizations. Perfect for students, educators, and history enthusiasts!
-
Household Chore Rota Generator
Share recurring jobs fairly: rotate a weekly list of chores across housemates and generate a copyable multi-week rota.
-
๐ Advanced Household Chore Tracker
Manage household chores, assign tasks, set schedules, and track completion with reminders. Perfect for families and shared living!
-
๐ชด Houseplant Matchmaker
The dating app for you and a plant. Answer honestly about your light, your watering habits and your pets, and it will set you up with a houseplant that can actually survive you.
-
๐ท Hyperfocal & Depth of Field
Hyperfocal distance H = fยฒ / (N ร c) + f. Focus there and everything from H/2 to infinity is acceptably sharp. Circle of confusion defaults: full frame 0.030 mm, APS-C 0.019 mm, Micro Four Thirds 0...
-
๐ผ๏ธ Image to Base64 Studio
Convert images to Base64 data URLs for inline CSS & HTML embedding, or decode Base64 strings back into downloadable images.
-
๐งฎ Recipe Ingredient Scaler
Perfectly scale any recipe with smart parsing, automatic unit conversions, and kitchen-tested measurements.
-
๐ ISO Week Number Finder
Convert a date to its ISO-8601 week (YYYY-Www-d) and the other way around. Weeks start on Monday; week 1 is the week with 4 January (the week containing the first Thursday).
-
๐ง JSON & YAML Studio
Format, validate, convert between JSON & YAML, and compare structural diffs side-by-side. 100% private in-browser processing.
-
๐ Julian Day Converter
Convert a calendar date to Julian Day Number (JDN) and Modified Julian Date (MJD = JD โ 2,400,000.5). Astronomers count days from noon UTC on 1 January 4713 BCE. Gregorian calendar after 15 Oct 1582.
-
๐ Offline Kanban Sprint Board
Lightweight, private Kanban board with drag-and-drop cards, custom columns, priority tags, WIP counts, markdown export, and local storage auto-save.
-
๐งถ Knitting & Crochet Yarn Studio
The four sums every knitter and crocheter does on the back of a pattern envelope: how many stitches to cast on at your gauge, how much yarn to buy, whether that leftover ball is enough, and which h...
-
๐งบ Laundry Care & Stain Solver
The complete โhow to actually do itโ guide: pick a fabric and get the right water, cycle and drying, get a step-by-step recipe for any stain, and decode those cryptic care-label symbols in plain En...
-
Laundry Tracker
Log laundry loads, track completion, and monitor laundry habits with statistics.
-
๐ Leap Year & Weekday
Gregorian leap years are divisible by 4, except centuries unless divisible by 400. 1900 was not a leap year; 2000 was. Also shows the weekday for any date your browser can represent.
-
๐งญ Learning Style Self-Assessment
Answer 8 quick questions to discover your preferred learning style: Visual, Auditory, Reading/Writing, or Kinaesthetic.
-
Leave-on-Time Planner
Work backwards from your arrival time to find when to start getting ready and when to leave, including travel and a safety buffer.
-
Matrices Calculator
Perform matrix operations: addition, multiplication, determinant, inverse, transpose, and more. Supports up to 4x4 matrices with visual formatting.
-
๐ Mean, Median & Mode
Paste a list of numbers separated by commas, spaces, or new lines.
-
Meeting Agenda Timebox Planner
Turn topics and durations into an exact running order, including a break and a clear finish time.
-
๐ฏ Corporate Meeting Bingo
Mark off buzzwords as your colleagues say them. First to get 5 in a row wins (and loses, because you're still in the meeting).
-
๐ World Meeting Time Zone Planner
Find a meeting slot that works across cities. Add up to eight time zones, drag the slider through the day and see each city's local time colour-coded as working hours, early/late, or asleep. Daylig...
-
Meeting Planner & Scheduler
Find optimal meeting times across multiple time zones, track availability, and generate meeting agendas. Perfect for remote teams, interviews, and collaborative scheduling!
-
๐ Meme Generator โ Your Image, Top & Bottom Text, No Watermark
Drop in any picture, add classic Impact captions or a modern white caption bar, and download a clean PNG. Text wraps and shrinks to fit automatically. The image never leaves your device and there i...
-
โณ Memento Mori Life Ticker
Your life, visualised as a grid of weeks โ then converted into how many summers, books and Sunday roasts you have left. Not to scare you. To make the next one count.
-
๐ฏ Memorization Helper
Add items to memorize, then test yourself by revealing them later. Perfect for studying, learning vocabulary, or remembering important facts. ๐ก Click items to hide/reveal โข Drag to reorder โข Expor...
-
๐๏ธ Memory Palace Builder
Memorise anything with the 2,500-year-old method of loci used by memory champions. Build rooms, place vivid images at each stop, walk your palace, then test your recall.
-
๐ง Mind Map Studio
A proper mind map in the browser: Tab for a child, Enter for a sibling, drag to rearrange, collapse branches you are not working on, and export as an image, a Markdown outline or a JSON file you ca...
-
๐ MOT, Road Tax & Insurance Deadline Reminder
Pop in your UK vehicle dates and see exactly how many days you have left, the earliest date you can take the MOT without losing time on your certificate, and a plain-English checklist to copy into ...
-
๐ Ultimate Moving Planner
Complete moving organization tool: Create checklists, track inventory, manage budget, schedule tasks, and coordinate with family/friends. Make your move stress-free!
-
Mutual Aid Shift Planner
Build a volunteer coverage proposal that respects individual limits. Match availability to community shifts, prioritise hard-to-cover slots, and reveal staffing gaps rather than silently double-boo...
-
๐ถ๏ธ ND Filter Exposure
New shutter = old shutter ร 2^(stops). ND8 is 3 stops, ND64 is 6, ND1000 is 10. Use it for silky water and daytime video at 180ยฐ shutter. Recheck highlights โ filters are not perfectly even.
-
๐ค Negotiation Prep Studio
Most negotiations are lost in the ten minutes before them, in the negotiatorโs head: no written walk-away, no BATNA, no plan for the first number. Fill in six fields and this produces the one-page ...
-
๐ข Number Base Converter
Convert numbers between binary, octal, decimal, hexadecimal, and any base from 2 to 36. Live conversion as you type.
-
๐ Online Notepad โ Autosave, Word Count & Download
A plain, fast notepad that saves itself as you type. Several notes in tabs, live word and character counts, find & replace, and one-click download as .txt โ all stored in this browser, never on a s...
-
๐ Overnight Shift Duration
Work out how long a shift is when it crosses midnight, plus unpaid breaks and overtime after a threshold. Built for night staff, on-call rotas and timesheets โ not a payroll system.
-
๐งฎ The Overthinker's Calculator
Calculate exactly how many ways a situation can go wrong. Spoiler: it's more than you think.
-
๐งณ Smart Packing List
Create intelligent packing lists with categories, trip types, weather considerations, and shareable checklists. Never forget an essential item!
-
๐จ Advanced Palette Swapper
Advanced color manipulation with multiple effects, palette extraction, and real-time preview. Transform images with professional color tools!
-
๐ฅ Pan Size Converter
Convert between different baking pan sizes and adjust recipes. Calculates volume differences and ingredient scaling.
-
๐ Paper Size Converter
ISO A/B/C series, US Letter/Legal/Tabloid and pixels at print DPI. A4 is 210 ร 297 mm; Letter is 8.5 ร 11 in. Sizes are the ISO 216 trimmed sheet, not the printable area.
-
Parcel Volumetric Weight Checker
Compare actual and volumetric parcel weight, calculate length plus girth, and check against the limits on your chosen courier service.
-
Party Planner
Plan your party with date, location, and guest list.
-
๐ง Passive Aggressive Email Translator
Type what you actually want to say. We'll make it sound professional. Ish.
-
๐ Passport Photo Size Guide
Official print sizes and pixel dimensions for UK, US, Schengen, Canada, Australia, India and China visa photos. Face-height rules are listed โ a home print can still be rejected if lighting or back...
-
๐ก๏ธ Password Strength & Crack-Time Estimator
Type a password to see its entropy in bits, estimated time to crack at online, offline and GPU-cluster speeds, and specific weaknesses โ dictionary words, keyboard walks, dates, repeats and common ...
-
Password Generator
Create strong, random passwords instantly. Customize length and character sets.
-
๐ Percentage Calculator
Work out percentages, increases, decreases, and discounts in seconds.
-
๐ข Permutations & Combinations
Calculate permutations (nPr) and combinations (nCr) โ how many ways to arrange or select items.
-
Pet Care Tracker
Log pet care tasks like feeding, walking, or grooming.
-
๐ Petty Revenge Idea Generator
Hilariously harmless revenge ideas for life's minor annoyances. All legal. All petty. All satisfying.
-
๐ Photo Location Leak Scrubber
Before you sell something online or post a photo of your home: see whether the picture reveals where it was taken (GPS coordinates), when, and on which phone โ then download a copy with that metada...
-
โฑ๏ธ Pomodoro Flow Timer
Level up your daily productivity with science-backed 25-minute focus intervals, audio finish chimes, streak tracking, and gamified XP rewards for completed sprints.
-
๐ฏ Practice Tracker
Track and analyze your practice sessions with detailed metrics and progress visualization. Set goals, track habits, and measure improvement.
-
โฑ๏ธ Price Tag in Hours of Your Life
Money is frozen time. Convert any price into how many hours (and minutes) of your actual working life it costs โ after tax, before snacks. That latte is cheaper once you've seen it in minutes.
-
๐ Prime Factor Finder
Break a whole number into its prime factors and see whether it is prime.
-
๐จ๏ธ Print Size & DPI Calculator
Convert pixel dimensions to print size at a chosen DPI, or the other way around. 300 DPI is typical photo-lab quality; 150 DPI is fine for posters viewed from a few feet.
-
๐ Printable Paper Generator
Make your own graph paper, dot grid, ruled refill, manuscript paper, storyboard sheets, Cornell notes, week planners and wall calendars โ sized for real paper, drawn on the device and downloaded as...
-
๐ Procrastination Justifier
Scientifically* valid reasons why you should absolutely do that thing tomorrow instead. *Not scientifically valid.
-
๐ Productivity Score
Calculate and analyze your daily productivity with detailed insights and actionable recommendations. Track progress and optimize your workflow.
-
๐
Project Deadline Calculator
Calculate project timelines with buffer days, weekend exclusions, and milestone planning. Plan realistically and track progress.
-
โก AI Prompt Studio
Turn vague thoughts into high-performance AI prompts used by senior prompt engineers. Constructs rigorous prompts with Chain-of-Thought reasoning, XML delimiters, output schemas, and anti-hallucina...
-
๐ฑ QR Code Generator
Generate QR codes instantly โ all processing happens in your browser. No data leaves your device. Supports URLs, text, WiFi, email, and more.
-
๐ท Instant QR & Image Reader
Decode QR codes instantly from uploaded screenshots, images, or your live camera feed. 100% private in-browser decoding โ photos never leave your device.
-
๐ Barcode Check Digit Validator
Validate or generate the check digit for EAN-13, UPC-A, EAN-8, ISBN-13, ISBN-10, GTIN-14 and ITF-14 barcodes. Shows the arithmetic so you can see exactly why a code passes or fails.
-
๐ณ Advanced QR Generator
Create scannable QR codes for URLs, text, Wi-Fi, contacts, email and SMS โ custom colours, optional logo, batch ZIP. Everything is generated on your device; nothing you encode is sent anywhere.
-
๐ง Quick Quiz Maker
Create a multiple-choice quiz, then test yourself. Questions save to your browser.
-
๐ฏ Smart Quiz Generator
Create custom quizzes, track progress, and test your knowledge. Perfect for studying, training, or self-assessment. Add multiple choice, true/false, or open-ended questions!
-
๐ฒ Random Number, Dice & Name Picker
Cryptographically random numbers in any range (with or without repeats), dice rolls in D&D notation like 3d6+2, coin flips, and a fair picker that draws a winner or shuffles a list of names. Nothin...
-
๐ฅ Random Team Generator & Group Splitter
Paste a list of names and split it into fair random teams โ by number of teams or people per team. Add an optional skill rating to balance sides, pick captains, and copy the result to the group chat.
-
โฑ๏ธ Pace Reading Timer
Time yourself reading a passage to measure your words-per-minute rate.
-
โฐ Reminder Tool
Create reminders that stay saved in your browser. Works offline โ data saved locally.
-
Return Window Deadline Calculator
Calculate a calendar-day deadline from a purchase or delivery date and the retailerโs stated return period, with an optional posting buffer.
-
๐ Ring Size Converter
Convert UK letters, US numbers, EU/ISO circumference and inner diameter. Based on a circular inside; wide bands often need a half-size up. Measure a well-fitting ring, not a string if you can help it.
-
๐ Rules of Thumb โ 80 Shortcuts That Actually Work
A working library of the short, memorable rules people use to make decisions without doing the maths: how long money takes to double, how to season a sauce, how many copies a backup needs, how far ...
-
๐ช๐บ Schengen 90/180 Calculator
Short-stay visitors can spend 90 days in any rolling 180-day window in the Schengen area (unless a visa or residence permit says otherwise). Add trips; days of entry and exit both count. Not immigr...
-
๐ฅ๏ธ Screen PPI Calculator
Pixels per inch from diagonal size and resolution. Also shows pixel pitch, aspect ratio and whether the display is โRetinaโ at a typical viewing distance (1 arc-minute).
-
๐ On-Screen Ruler & Pixel-to-Physical Converter
Turn your screen into a ruler. Calibrate once with a bank card (85.6 mm wide) or by entering your screen's diagonal size, then measure real objects in mm, cm and inches โ and convert between CSS pi...
-
๐ Secret Santa Generator
Organize a perfect Secret Santa gift exchange with automatic matching, restrictions, and wish lists! โ Supports: Family restrictions, wish lists, budget tracking, email notifications
-
๐ Sensitive Data Redactor
Mask common identifiers before sharing a message, support log, or document. Detects likely email addresses, phone numbers, IPv4 addresses and Luhn-valid payment-card numbers; add exact phrases of y...
-
๐ Shoe Size Converter
Convert adult shoe sizes between US, UK, EU and Mondopoint (mm). Based on standard last-length charts โ brands still vary by a half size, so treat this as a starting point, not a fitting.
-
๐ Smart Shopping List
Add items, organize by category, track quantities, and manage your shopping efficiently. โ Features: Categories, quantity tracking, budget calculator, shareable lists
-
โ
To-Do List โ Simple, Offline, Remembers Itself
Type a task, press Enter, tick it off. Priorities, due dates with overdue warnings, reorder, filter and search โ and the list is still there tomorrow because it is saved in this browser. No account...
-
๐ผ๏ธ Social Preview Generator
Create perfectly sized Open Graph and Twitter preview images with custom branding, layouts, and auto-generated HTML meta tags.
-
๐ก Spin the Wheel โ Random Name & Decision Picker
Type names, dinner options or chores one per line, spin, and let the wheel decide. Remove each winner as you go to draw a whole order. Your list is remembered on this device and nothing is sent any...
-
๐ฎ Sprite Sheet Studio
Advanced sprite sheet cutter for game developers. Slice, preview, animate, and export sprite sheets with professional tools. โจ Supports PNG, JPG, GIF, and WebP formats
-
โฑ๏ธ Stopwatch & Precision Timer
Stopwatch with lap splits, countdown timer, and interval beeps โ all offline, no install. Great for workouts, cooking, presentations, and lab timing.
-
๐ Study Planner
Plan your study sessions, track progress, and stay focused with a built-in Pomodoro timer. All data saved locally in your browser.
-
๐ SVG Path Visualizer
Inspect, edit, and optimize SVG path data (d="...") in real time. Visualizes anchor nodes, control handles, bounding box, and minified code.
-
๐ Task Prioritizer Matrix
Use the Eisenhower Matrix to prioritize tasks by urgency and importance. Based on the time management framework.
-
๐ท๏ธ The Thing Namer
Naming things is one of the two hard problems in computer science (along with cache invalidation and off-by-one errors). Point it at a thing and it will name it โ band, pet, D&D character, startup,...
-
๐ผ๏ธ Universal Thumbnail Generator
Generate perfectly sized thumbnails for any platform with advanced editing tools. No upload required - all processing happens locally.
-
๐ฎ Tic Tac Toe Game
Play Tic Tac Toe against the computer or a friend. Features three difficulty levels and game statistics. Classic strategy game reimagined.
-
โฑ๏ธ Time Calculator โ Add, Subtract & Convert Hours and Minutes
Add up a list of times like 1:30 + 2h45m, find the hours and minutes between two clock times (overnight shifts included), add a duration to a start time, and convert decimal hours to h:mm or 24-hou...
-
โฑ๏ธ Timelapse Interval
Shots needed = clip length ร frame rate. Real time covered = shots ร interval. Leave the battery and a bigger card than you think. Sunset clouds often want 2โ5 s; construction days want 30โ60 s.
-
โฑ๏ธ Advanced Timer & Stopwatch
Advanced timer with countdown, stopwatch, intervals, lap times, and multiple alarms. Perfect for workouts, cooking, study sessions, and productivity.
-
๐ Time Zone Converter
Convert any date and time between time zones. Supports all major world time zones.
-
๐ Tyre Size Comparison
Compare two metric tyre sizes (e.g. 225/45R17 vs 235/40R18): overall diameter, circumference, sidewall and the speedometer error if you swap them. Not a load or speed-rating check.
-
โ๏ธ Travel Trip Planner
Plan your perfect trip with detailed itineraries, budget tracking, and smart recommendations. Get personalized suggestions based on your preferences!
-
๐ฎ UK Postcode Formatter
Uppercase, insert the inward-code space, and check the Royal Mail pattern (e.g. LU1 2AB, EC1A 1BB, W1A 0AX). This is a format check only โ it does not look up addresses.
-
Which Year Are You? ๐ฐ๏ธ
Discover your internet personality era based on your tastes, habits, and vibes. โ Share your result!
-
๐ถ Wi-Fi QR Pass Generator
Generate an instant, scannable QR code for your home, studio, or office Wi-Fi network. Guests can scan with their phone camera to connect immediately without typing complicated passwords. ๐ Genuin...
-
๐ Text Statistics Analyzer
Comprehensive text analysis: word count, character count, sentence count, reading time, readability score, and more.
-
โฑ๏ธ Work Hours & Pay Calculator
Calculate work hours, breaks, overtime, and pay. Track multiple shifts, different pay rates, and generate detailed timesheets. Perfect for freelancers, contractors, and employees!
-
๐ World Clock & Time Zone Board
A live board of any cities you care about: local time, weekday, date and real UTC offset with daylight saving already applied. Add up to twelve, drag the hour slider to see what one moment looks li...
-
โ๏ธ XMAS Card Writer Assistant
Struggling with what to write? Get personalized Christmas card messages for everyone on your list! Save time, spread joy!
-
๐ Christmas Countdown
Count down to Christmas with real-time tracking, festive facts, and daily suggestions! ๐ Shows days, hours, minutes until Christmas morning
-
๐
Santa Tracker & Message Center
Track Santa's journey and send him a message! Get a personalized response from the North Pole. Perfect for kids and kids-at-heart!
-
๐จ Aesthetic Color Palette Generator
Generate beautiful color palettes for designs, social media, and vibes โ click to copy hex codes
-
๐ต Playlist Name Generator
Generate creative playlist names for Spotify, Apple Music, and YouTube โ match the vibe of your music
-
๐ Study Timer (Pomodoro)
Focus timer with study/break cycles, session tracking, and motivational quotes โ ace your exams
-
๐ฎ Username Generator
Generate unique, cool usernames for gaming, social media, and streaming โ check availability vibes
-
๐ฌ What Should I Watch?
Can't decide what to watch? Answer 3 quick questions and get personalized movie/show recommendations
Looking for something else? Filter all 1424 tools โ