Guides & tips
Syed Hurrar Hasan Rizvi
How to Calculate Hours Worked (With Breaks and Overtime)
Hours worked = finish time minus start time minus unpaid breaks. Worked examples, night shifts, decimal hours, overtime and pay.
How to Convert WebP to JPG or PNG (Online, Windows and Mac)
Convert WebP to JPG or PNG for free: online in your browser, with Paint on Windows or Preview on Mac, plus which format to…
How to Convert HEIC to JPG on iPhone, Windows and Mac (Free)
Convert iPhone HEIC photos to JPG for free: online in your browser, on iPhone settings, Windows and Mac — plus how to stop your…
What Is Domain Authority? How to Check It for Free (and Improve It)
Domain authority explained in plain English: what DA, DR and Authority Score mean, whether Google uses them, how to check domain authority for free,…
How to Reduce Image Size in KB (20KB, 50KB, 100KB) for Online Forms
Get a photo or signature under 20 KB, 50 KB, 100 KB or 200 KB for online forms in four steps — free, in…
How to Make an Invoice: What to Include (With a Free Template)
Everything a professional invoice needs, a worked example and tips to get paid faster — plus a free invoice generator that makes a PDF.
How to Sign a PDF Online for Free (No Printing or Scanning)
Add your signature to a PDF in under a minute on any device — no printer, scanner or account needed — plus what makes…
Fancy Fonts for Instagram Bio: How Copy-and-Paste Fonts Work
Instagram does not let you change fonts, but Unicode copy-and-paste text does. Here is how it works, the best styles and how to keep…
Extract Text From Image: How to Copy Text From Photos (Phone, PC and Online)
Copy text from photos, screenshots and scanned pages on any device — iPhone, Android, Windows, Mac or a free online OCR tool.
Average Typing Speed: What Is a Good WPM and How to Type Faster
What the average typing speed really is, what counts as a good WPM, how tests measure it and a simple plan to type faster.
How to Calculate GPA and CGPA: Step-by-Step With Examples
GPA and CGPA explained with a 4.0 grade-point table, worked examples, weighted GPA and a free calculator.
How to Pick a Random Winner Fairly (Giveaways, Classrooms and Decisions)
A simple, fair way to pick a random winner for giveaways, raffles, classrooms and everyday decisions — with a free spin the wheel picker.