Kravoy Blog
Practical guides, tips, and tutorials for images, developers, SEO, finance, YouTube, QR codes, productivity, and everyday online tasks.
JSON vs XML: What's the Difference?
JSON vs XML compared side by side: syntax, data types, validation, comments, API usage, and conversion pitfalls — plus when each format makes sense, without declaring a universal winner.
Common JSON Syntax Errors and How to Fix Them
A troubleshooting guide to the JSON syntax errors developers hit most: missing commas, single quotes, trailing commas, mismatched brackets, invalid values, unescaped characters, comments, and more — with the real error messages and the fix for each.
How to Create a QR Code for a Website, Wi-Fi, Contact or Payment
A complete guide to QR code types — URL, Wi-Fi, contact, payment, text — how they work, static vs dynamic codes, sizing and contrast best practices, and how to generate one with Kravoy.
YouTube Thumbnail Size, Dimensions & Best Practices
The current YouTube thumbnail size (3840 × 2160 or 1280 × 720 at 16:9), the Shorts thumbnail size, file format and upload limits, plus practical design guidance for mobile readability and a pre-upload checklist.
How to Create SEO-Friendly Meta Titles and Meta Descriptions
A practical SEO guide to writing clear, compelling title tags and meta descriptions — with 11 real weak-vs-improved examples across different industries, common mistakes, and why Google sometimes rewrites your snippet anyway.
SIP vs Lump Sum: How Do They Work?
A neutral, educational comparison of SIP and lump-sum investing — how each works mathematically, rupee-cost averaging, a worked hypothetical example, and the cash-flow and volatility factors that determine which fits your situation.
How to Calculate EMI: EMI Formula, Example & Amortization Explained
A complete walkthrough of the EMI formula with a full worked example, amortization tables, and how tenure, interest rate, and prepayments each change your total cost.
What Is Base64 Encoding? Base64 Encoder & Decoder Explained
A developer-focused guide to Base64: what it is, how it works, text and file examples, Data URLs, common use cases — and why Base64 is encoding, not encryption, and provides zero security on its own.
JSON Formatter: What Is JSON and How to Format JSON Correctly
A beginner-friendly, practical guide to JSON — objects, arrays, data types, nesting, valid vs invalid syntax, the most common JSON errors, and how to format, validate, and minify JSON with Kravoy's JSON Formatter.
How to Reduce Image File Size for a Website
A practical, SEO-focused workflow for optimizing website images — dimensions vs file size, choosing JPG/PNG/WebP, compression quality, responsive and retina images, plus a before-and-after example.
How to Compress Images Without Losing Quality
Learn what image compression actually does, the difference between lossy and lossless, and how to shrink JPG, PNG, and WebP files without visible quality loss.
JPG vs PNG vs WebP: Which Image Format Should You Use?
A practical, situation-based comparison of JPG, PNG, and WebP covering compression, transparency, quality, and when each format actually makes sense.