Tips, guides & tutorials
Step-by-step explainers for every tool — from merging PDFs and compressing images to building color palettes and strong passwords.
How to Merge PDF Files for Free (No Upload, No App)
Step-by-step guide to merging PDF files instantly in your browser — no software to install, no account, no cloud upload.
How to Compress Images Without Losing Quality
Reduce JPG, PNG and WebP file sizes by up to 80% in your browser — no upload, no watermark, batch support.
GeneratorsFree QR Code Generator: URL, WiFi, vCard & More
Create custom QR codes for URLs, WiFi networks, contact cards and email — with your own colors and logo, completely free.
Writing & SEOWord Count & Readability Score: A Complete Guide
Learn what readability scores mean (Flesch, Gunning Fog, SMOG) and how to improve your writing with a free word counter.
SecurityHow to Create a Strong Password (and Actually Remember It)
Why long passwords beat complex ones, how to use a password generator correctly, and random vs pronounceable passwords explained.
MathPercentage Calculator: Tips, Discounts, VAT & More
How to calculate percentages for discounts, tips, VAT/GST, and percentage changes — with a free instant calculator.
WritingFree Online Notepad: Auto-Save, Markdown & Export
How to use a browser-based notepad that auto-saves, supports markdown preview, and exports to TXT — zero account or install needed.
ProductivityPomodoro Technique: How to Use It to Triple Your Focus
What the Pomodoro Technique is, how 25/5 work-break cycles work, and how to track tasks with a free online timer.
Design & DevColor Picker: HEX, RGB, HSL & Building Color Palettes
Convert between HEX, RGB and HSL, generate accessible color palettes, and check WCAG contrast ratios — free in your browser.
OCRImage to Text (OCR): Extract Text from Any Photo
How OCR works, when to use it, and how to extract text from screenshots, scanned documents and photos — privately in your browser.
ConvertersUnit Converter: Length, Weight, Temperature & More
Quick reference for common unit conversions — cm to inches, kg to lbs, Celsius to Fahrenheit — plus a free instant converter.
HealthBMI Calculator: What Your Number Actually Means
What BMI is, its limitations, how to calculate it, and what the BMI categories mean for your health.
Date & TimeHow to Calculate Your Exact Age (Years, Months and Days)
Calculate your exact age down to hours, find out how many days until your next birthday, and discover interesting life milestones.
FinanceMortgage Calculator: EMI, Total Cost & Amortization Explained
How to calculate your monthly mortgage payment, understand amortization, and work out the total cost of a home loan.
DeveloperJSON Formatter & Validator: How to Read and Debug JSON
How to format, validate and minify JSON — what common JSON errors mean and how to fix them — for developers and beginners.
TextText Case Converter: Upper, Lower, Title, Snake & Camel Case
When to use each text case, how to convert text instantly, and the difference between title case and sentence case.