The Toolerax Blog — Page 4
Practical guides and tips to get the most out of our tools — and the concepts behind them.
The Anatomy of a URL
A clear breakdown of every part of a URL — scheme, host, port, path, query string and fragment — plus how query parameters and tracking tags work, with examples.
Read articleHow to Remove an Image Background for Free
How AI background removal works, how to shoot photos that cut out cleanly, why hair and glass are hard, and why running it in your browser keeps photos private.
Read articleWhen to Use Base64 Images (Data URIs)
What data URIs are, the 33% size penalty, why inlining destroys caching, the few cases where it genuinely helps, and why most sites should not use it.
Read articlePNG vs JPG vs WebP: Which Should You Use?
A full comparison of PNG, JPG and WebP — transparency, compression, quality, file size and browser support — plus AVIF, SVG and a decision guide.
Read articleFind and Replace with Regex
Go beyond simple find and replace. Learn whole-word and case-sensitive matching, then use regular expressions and capture groups to reformat text in bulk.
Read articleHow to Compress Images for a Faster Website
A complete guide to image compression: lossy vs lossless, choosing quality and format, resizing before compressing, Core Web Vitals, and how much you can safely cut.
Read articleHow to Resize an Image Without Losing Quality
A complete guide to resizing images: pixels vs percentage, aspect ratio, why upscaling never truly works, retina screens, and what size to use for the web.
Read articleWhat Is a Unix Timestamp?
Unix epoch time explained: why seconds vs milliseconds breaks things, why timestamps have no timezone, leap seconds, the year 2038 problem, and how to store dates.
Read articleThe Power of Compound Interest
How compound interest works, the formula behind it, why time matters more than rate, and how regular contributions turn small savings into large sums.
Read articleHow to Convert CSV to JSON
How CSV maps to JSON, why commas inside quotes break naive parsers, the Excel traps that corrupt your data, type conversion, and nested structures.
Read articleHow to Calculate Sales Tax
The simple formulas for adding sales tax to a price and extracting tax from a total, why reverse tax isn't just subtraction, and how VAT and GST compare.
Read articleHEX, RGB & HSL Explained
How HEX, RGB and HSL work, how to read a hex code without a picker, why HSL is the designer's format, and how to build a color palette that actually works.
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