Guides and tutorials
Short, practical explanations of the ideas behind our tools.
How to Check Colour Contrast for Accessibility
What the WCAG contrast ratio measures, the thresholds for normal and large text, and how to fix colours that fail.
Read guide →How Loan EMI Is Calculated, With Examples
The EMI formula explained step by step, how interest and principal change over time, and what affects your monthly payment.
Read guide →JSON Formatting and Validation Basics
The rules of valid JSON, the most common syntax errors, and when to format or minify JSON.
Read guide →How to Compress Images for the Web
Choose the right format, size and quality setting to make images load faster while keeping them sharp.
Read guide →What to Include in a Website Privacy Policy
The sections most privacy policies need, how to work out what your site really collects, and the mistakes to avoid.
Read guide →How to Write an ATS-Friendly Resume
What applicant tracking systems do, which layouts they read best, and how to use keywords honestly.
Read guide →How to Print Shipping Labels at the Right Size
Why labels come out the wrong size, how to set up your printer, and how to protect barcodes from being distorted.
Read guide →PDF to Word: What Converts Well and What Does Not
Why PDF conversion is imperfect, which documents convert cleanly, and what to do with scans and complex layouts.
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