The UtilityApps Blog
Deep dives, calculators, and practical tutorials for the tools you actually use. Free, no signup, written by people who use them daily.
SEO Tools
How to write meta descriptions that get clicks — the ideal length, copywriting formulas, common mistakes, and why CTR matters more than rankings.
DEV-MID · rectangleA complete word count guide for 2026 — ideal length for blog posts, college essays, tweets, LinkedIn posts, emails and novels, with the reasoning behind each.
How to calculate percentage increase and decrease with the exact formula and real examples — salary raises, discounts, investment returns and price changes.
Compress images for faster website loading without losing quality. WordPress, Shopify and ecommerce tips, lossy vs lossless, and a free in-browser tool.
Learn how to compress images without visible quality loss. Practical settings for JPG, PNG and WebP, the lossy vs lossless trade-off, and a free browser tool.
Understand compound interest with the full formula, worked examples, and the rule of 72. See how compounding frequency changes the result — plus a free calculator.
Instagram story dimensions and every IG format for 2026 — Stories, Reels, Posts, Carousels — with safe zones, resolution specs and how to resize photos.
Remove the background from product photos for ecommerce free. Why white backgrounds matter on Amazon, Shopify and Etsy, plus bulk tips and common mistakes.
A clear explanation of JSON Web Tokens — the three parts, how signatures work, what decoding does and does not prove, and how to inspect a token safely.
How much mortgage can you afford on a $100k salary? The 28/36 rule, debt-to-income, down payment scenarios, and city comparisons — with a free calculator.
How much water you actually need per day — where the 8-glasses rule came from, what changes the number, and how to calculate your own target.
Credit card payoff strategies compared — debt avalanche vs snowball — with real-number examples, the psychology behind each, and when each method wins.
A practical guide to MP3, WAV and FLAC — lossy vs lossless, file sizes, sound quality, and exactly when to use each format. Plus a free audio converter.