Guides & Articles
Helpful explanations and how-to articles for all tool categories.
Finance
How Is Mortgage Interest Calculated?
Learn how lenders calculate mortgage interest, how amortization works, and how to reduce the total interest you pay.
How to Calculate EMI
Understand the EMI formula, how equated monthly installments work, and how to calculate EMI manually or with a calculator.
What Is Compound Interest?
Understand how compound interest works, why it matters for savings and investments, and how it differs from simple interest.
How to Calculate Percentage Increase
Learn the simple formula for calculating percentage increase and decrease, with worked examples and common use cases.
Image
JPG vs PNG vs WebP: Which Format Should You Use?
A practical guide to choosing between JPG, PNG and WebP image formats for the web, photography and graphic design.
How to Convert JPG to WebP
A step-by-step guide to converting JPG images to WebP format to improve website performance and reduce image file sizes.
How to Compress an Image Without Losing Too Much Quality
Practical tips for compressing images for the web while keeping them looking sharp. Covers format choice, quality settings and tools.
Developer
What Is a UUID?
An explanation of UUIDs (Universally Unique Identifiers), how they are generated, and when to use them in software development.
What Is JSON and Why Is It Used?
A beginner-friendly introduction to JSON (JavaScript Object Notation), its syntax, use cases, and how it powers modern web APIs.
MB vs MiB: What Is the Difference?
A clear explanation of the difference between megabytes (MB) and mebibytes (MiB), and why it matters when measuring file sizes.