Blog — guides and tutorials from Smartweb.tools
Practical guides about SEO, images, PDFs, writing, calculators and developer tools — each one connected to a free online tool you can use right away.
- How to Calculate Your Exact Age in Years, Months and Days — Working out an exact age is trickier than it looks because months and leap years vary. Learn the simple way to calculate age precisely with a free calculator.
- How to Extract and Edit Text From a PDF — Need to copy or change text locked inside a PDF? Learn the fastest free ways to extract PDF text and make simple edits right in your browser.
- HEX, RGB and HSL: A Practical Guide to Web Colors — HEX, RGB and HSL are three ways to write the same colors. Learn what each one means, when to use it, and how to convert between them instantly for free.
- Minify CSS and HTML to Speed Up Your Website — Minifying removes the characters browsers do not need, making your files smaller and your pages faster. Learn how it works and how to minify CSS and HTML for free.
- Open Graph Tags: Make Your Links Look Great When Shared — Open Graph tags control how your link appears on Facebook, X and LinkedIn. Learn what they are, which tags matter, and how to preview your share card for free.
- XML Sitemaps Explained: Help Google Find Your Pages — An XML sitemap lists your important pages so search engines can find them faster. Learn how sitemaps work, what to include, and how to build one for free.
- Schema Markup: A Beginner Guide to Rich Results — Schema markup helps Google understand your pages and can unlock rich results like star ratings and FAQs. Learn what it is and how to generate it for free.
- How to Generate QR Codes for Your Business — QR codes connect the physical world to your website. Learn what they are good for, how to make one that scans reliably, and how to create QR codes for free.
- What Is Base64 Encoding and When Should You Use It? — Base64 turns binary data into safe, text-friendly characters. Learn what it is, how it works, when to use it, and when not to, plus a free encoder and decoder.
- JSON Formatting and Validation: A Practical Guide for Developers — Messy, minified JSON is hard to read and easy to break. Learn how to format, validate and debug JSON quickly with a free browser-based formatter.
- How to Calculate Percentages the Easy Way — Percentages appear everywhere: discounts, tips, grades and interest. Learn the simple methods to calculate any percentage by hand or instantly with a free tool.
- How Loan EMI Works and How to Calculate It — An EMI is the fixed amount you repay on a loan each month. Learn how EMIs are calculated, what affects them, and how to work out yours instantly with a free calculator.