The Toolerax Blog — Page 15
Practical guides and tips to get the most out of our tools — and the concepts behind them.
How Barcodes Work
What the bars actually encode, how scanners read them in either direction, how EAN/UPC check digits catch typos, and which format to use for what.
Read articleHow CSS Minification Works
What a CSS minifier removes, why render-blocking stylesheets make every kilobyte count, how minification stacks with gzip, and when not to bother.
Read articleYAML vs JSON
YAML is built for humans, JSON for machines. The type-guessing traps (Norway problem, 3.10), what is lost in conversion, and how to pick.
Read articleHow to Format XML
What good XML formatting looks like, which whitespace is safe to change, the errors validators catch, and when to minify instead of beautify.
Read articleHow to Convert Base64 to an Image
Turn a Base64 string or data URI back into a viewable image, recognize formats by their magic-byte prefixes, and fix the five classic decoding failures.
Read articleHow Fancy Text (Unicode Fonts) Works
𝗕𝗼𝗹𝗱 Instagram bios aren't fonts at all — they're mathematical alphabets hiding in Unicode. How the trick works and where it breaks.
Read articleCups, Grams and Tablespoons Explained
A cup of flour and a cup of sugar weigh completely different amounts. The density problem behind cups-to-grams, the US/metric cup trap, and a conversion table.
Read articleFeet & Inches to Centimeters
The exact feet-and-inches to cm method (×2.54), the common 5'10" mistakes, a reference chart, and why 1 inch equals exactly 2.54 centimeters.
Read articleHow to Read Military Time
Reading 24-hour time is one subtraction: past 1300, subtract 12 and say PM. Plus the midnight/noon edge cases and why hospitals and airlines refuse AM/PM.
Read articleHow to Calculate Fuel Cost for a Trip
The two fuel-cost formulas — L/100km and MPG — worked through with examples, why the systems point in opposite directions, and how to split costs fairly.
Read articleHow a Due Date Is Calculated
Why due dates count from the last period rather than conception, how cycle length shifts the estimate, and what the 40-week number really means statistically.
Read articleHourly Rate to Annual Salary
Convert an hourly wage to a yearly salary and back: the 2,080-hour year, the double-it shortcut, and the assumptions that hide in offers.
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