The ToolFeather Blog
Clear, practical guides on the everyday problems our tools solve — from percentages and loans to SEO, images, and color.
How to Create a Robots.txt That Won't Break Your SEO
A single wrong line in robots.txt can wipe a site from search. Here's how the file works and how to write rules that help rather than harm.
HEX, RGB, HSL: A Practical Guide to Color Codes on the Web
Three ways to write the same color, each better for a different job. Here's how HEX, RGB, and HSL work and when to reach for each.
JSON for Non-Developers: A 5-Minute Primer
JSON shows up in exports, settings, and APIs everywhere. Here's how to read and fix it without being a programmer.
Understanding BMI: What the Number Actually Tells You (and What It Doesn't)
BMI is a useful screening number and a blunt instrument at the same time. Here's what it can and can't tell you about your health.
Password Strength Explained: Length vs Complexity
The old advice to add symbols and numbers misses the point. Here's what actually makes a password strong — and it's mostly about length.
How to Compress Images Without Losing Quality
Smaller images, same visual quality. Here's how compression actually works and the practical settings that keep photos crisp while cutting file size.
Meta Tags Checklist 2026: What Still Matters for SEO
Not every meta tag earns its place anymore. Here's the 2026 checklist of the ones that still move the needle for search and social.
How to Write SEO-Friendly URLs: A Beginner's Guide to Slugs
Clean URLs help readers and search engines alike. Here's how to write slugs that are short, readable, and SEO-friendly — plus the mistakes to avoid.
EMI vs Total Interest: Reading Your Loan Amortization Schedule
Your EMI is only half the story. Learn to read an amortization schedule and see how tenure quietly controls the total interest you pay.
How to Calculate Percentages: 5 Common Real-World Scenarios
Five everyday percentage problems — discounts, tips, tax, grades, and change — solved step by step, with mental-math shortcuts.