Guides
Short, practical explainers that pair with our tools.
What is GST? A Simple Guide
Understand GST (Goods and Services Tax): what it is, the main slabs, how to calculate it, and how to add or remove GST from a price with examples.
How EMI Is Calculated
Learn how loan EMI works: the EMI formula explained step by step, how tenure and interest affect your monthly payment, and worked examples.
JSON Formatting and Validation Guide
A practical guide to formatting and validating JSON: common syntax errors, how to pretty-print vs minify, and tips for debugging API responses.
How to Write Great Meta Descriptions
How to write meta descriptions that improve click-through: ideal length, what to include, common mistakes, and examples you can copy.
How SIP Returns Work
Understand how SIP returns are calculated: the future value formula, how compounding grows monthly investments, and worked examples with real numbers.
How to Compress and Convert Images for the Web
Make web pages faster by compressing and converting images: choosing JPG, PNG or WebP, the right dimensions, and how much quality you can safely drop.
Structured Data & Open Graph: Control How Your Pages Appear
A beginner-friendly guide to JSON-LD structured data and Open Graph tags — how they win rich results in Google and clean previews on social media.
How Mortgage Amortization Works
Understand mortgage amortization: how each payment splits between interest and principal, why early payments are mostly interest, and how extra payments save.
Gross vs Net Pay: Calculating Take-Home Pay
Learn the difference between gross and net pay, what gets deducted from a paycheck, and how to estimate your real take-home pay with a worked example.
Compound Interest Explained
Understand compound interest: the formula, how compounding frequency changes returns, the difference from simple interest, and why starting early matters most.
Regex Cheat Sheet
A practical regular expression cheat sheet: character classes, quantifiers, anchors and groups, plus ready-to-use patterns for emails, numbers and more.
How to Calculate GST on an Invoice
A step-by-step guide to calculating GST on an invoice: working out the tax-exclusive base, adding GST, applying discounts first, and showing the split.
Understanding BMI and Daily Calorie Needs
Understand BMI and TDEE: what each number means, how they are calculated, their limitations, and how to use them together to set realistic health goals.
Metric vs Imperial Units: A Conversion Guide
A practical guide to metric and imperial units: the key conversion factors for length, weight, temperature and volume, with examples and common pitfalls.
How Exchange Rates Work
Understand how currency exchange rates are set, why the rate your bank or card gives you differs from the mid-market rate, and how to get a better deal.
How to Check a Website's Meta Tags
A practical checklist for auditing meta tags: title, description, canonical, robots, Open Graph and Twitter Cards — what each should say and how to check them.
How to Find and Fix Broken Links
Broken links hurt SEO and user trust. Learn how to find dead links fast, whether to fix, redirect or remove them, and how to stop new ones appearing.
How to Make a Professional Invoice
A step-by-step guide to writing a professional invoice: what to include, how to number invoices, setting payment terms, and mistakes that delay payment.