Everyday Utilities
The small stuff of daily life adds up — and small tools make it manageable. Catalog your belongings room by room for insurance, track what's in your freezer with USDA-based use-by dates, sign PDFs and compress them right in your browser, opt yourself out of data brokers with direct removal links, analyze your WhatsApp chats or turn them into a printable book, build a large-print medication schedule, get step-by-step stain removal for 40 common stains, plan a fire escape route for your home, and check a photo of your kid for hidden GPS data before posting. Everything runs privately on your device — nothing uploads anywhere.
Age Calculator
Calculate exact age in years, months and days from any birth date.
Fuel Cost Calculator
Estimate gas costs for any road trip from MPG and fuel price.
Time Duration Calculator
Find hours and minutes between any two times.
GPA Calculator
Compute semester GPA from grades and credit hours.
Sleep Cycle Calculator
Find the best bedtime or wake-up time by full sleep cycles.
Data Broker Opt-Out Kit
DIY: Opt out of 15 major data brokers yourself — direct removal links, a ready-made request-letter generator, and a…
Sign PDF Free — Electronic Signature Online
Sign any PDF in your browser: draw, type or upload your signature and place it on the document. Free, unlimited…
Fake File Detector
Drop any suspicious file — invoice.pdf.exe, anyone? — and see its real file type from magic bytes, plus…
Fire Escape Plan Maker
Draw your home's floor plan on a grid, mark two escape routes per room plus an outside meeting point, then print a…
Freezer Inventory Tracker
Free freezer inventory tracker: log everything you freeze, get USDA-based use-by dates, auto-flag items to use soon…
Home Inventory — Free List for Insurance
Catalog your belongings room-by-room with photos and values, saved privately in your browser — then print a clean…
Kid Photo Safety Check
Check a photo of your child before posting: detects hidden GPS location data, counts faces, and walks you through a…
Medication Tracker
Free printable medication tracker: build a large-print daily pill schedule, a weekly checklist grid, and refill…
Move-In Inspection Checklist
Free rental move-in and move-out inspection checklist: room-by-room conditions, photos per item, and a printable…
Moving Box QR Labels — Free Printable
Create printable QR labels for your moving boxes — scan any box with a phone camera to see what's inside. Free, no…
Overshare Checker
Paste text before you post: Overshare Checker finds emails, phone numbers, SSNs, credit cards, API keys and addresses —…
PDF Bates Stamper
Stamp sequential Bates numbers on every page of a PDF in your browser. Custom prefix, start number and position — free…
PDF Booklet Maker
Turn any PDF into a print-ready booklet: pages reordered into saddle-stitch signatures, 2-up, padded to multiples of 4…
Compress PDF — Shrink PDF Size Free, No Upload
Reduce PDF file size in your browser. Perfect for scanned documents and image-heavy PDFs — free, unlimited, private. No…
PDF Link Extractor
Extract every hyperlink and URL from a PDF in seconds. Clean, deduped list with copy-all and CSV download — free…
PDF Metadata Editor
View and edit hidden PDF properties — title, author, subject, keywords — in your browser. Fix 'Untitled' docs or strip…
Social Privacy Checkup
Lock down Instagram, Facebook, TikTok, X, Snapchat and LinkedIn with step-by-step privacy checklists. Track progress on…
Stain Removal Guide
Free interactive stain removal guide: pick from 40 common stains and your fabric type for step-by-step removal…
WhatsApp Chat Analyzer — Free Chat Stats
Analyze any WhatsApp chat export (.txt) free: message stats, busiest hours, top words, emojis and per-person…
WhatsApp Wrapped — Year in Review
Your WhatsApp chats, Wrapped-style: story cards with awards for most messages, longest streak, night owl, emoji…
Tools for the jobs nobody makes an app for
Everyday tools are the odd, specific jobs of ordinary life. The Medication Tracker builds a dose schedule anchored to your routines, flags refills a week before the bottle runs out and prints a large-print schedule for the fridge. The Stain Removal Guide walks you through the right treatment order for common stains by fabric, before the wash makes them permanent.
There is a whole shelf of WhatsApp tools here too — the Chat Analyzer, WhatsApp Wrapped and the chat-to-PDF book maker — plus home and moving helpers like the Home Inventory and moving-box QR labels. If a small job has ever made you think "there should be a tool for this", it is probably in this category.
Guides from the blog
- What Time Should I Go to Bed? Sleep Cycles, the 90-Minute Rule and Wake Times That Work — Bedtime counted back in 90-minute cycles — for a 6:00 AM alarm, 8:45 PM, 10:15 PM or 11:45 PM — and why 7.5 aligned hours can beat 8 misaligned ones.
- How to Convert Time Zones: EST to PST, Daylight Saving and the Business-Hours Overlap — Conversion through UTC, 3:00 PM ET on July 15 2026 worked step by step (= 12:00 PM PDT), and the spring/fall weeks when New York to Berlin is 5 hours, not 6.
- How to Calculate GPA: Grade Points, Credit Weighting and the 4.0 Scale — Quality points ÷ credits on the 4.0 scale — a 3.32 semester worked course by course, plus weighted vs unweighted explained.
- How to Calculate a Tip: The Pre-Tax Rule, Fair Percentages and Splitting the Bill — Tip on the pre-tax total, choose 15–25% with confidence, add tax correctly, and split the grand total evenly.
- How to Create a Strong Password You Can Actually Remember — Length beats complexity tricks: the passphrase method, explained.
- How to Compress a PDF (Without Uploading It Anywhere) — Why scanned PDFs balloon to 30 MB, the three compression strengths explained, and the honest trade-off: the text layer.
Planning a long drive is an everyday job with real money in it, and the maths is easier than most people expect: our guide to calculating fuel cost for a road trip walks through miles, MPG and cost per mile, so you can budget the trip — and split it fairly — before you leave.