How to Compare Two Texts and Spot Every Difference
Compare two texts line by line and spot every difference, with a worked example, whitespace checks, and safe copy habits.
What Is Morse Code and How Does It Actually Work
What Morse code is, how dots, dashes, and spacing work, and a worked example encoding HELLO, plus SOS explained.
How to Convert Binary, Decimal, and Hex Without a Chart
Convert binary, decimal, and hex without a chart using place values, with the worked example 1010 = 10 = A.
How to Pick a Color Palette That Doesn’t Clash
How to pick a color palette that doesn’t clash: the 60-30-10 rule, 1 dark + 1 light + 1 accent, navy/white/orange example, and contrast tests.
What Is UUID v4 and Where Does It Come From
What is UUID v4? Learn its 8-4-4-4-12 layout, version nibble 4, variant 8/9/a/b, worked example, and why it is random, not sequential.
How to Make a Favicon That Actually Shows Up in the Browser Tab
Make a favicon that actually shows up in the browser tab. Learn ICO vs PNG, 16/32/48 sizes, and how to clear cache to see it.
What Is a Data URI and When Should You Use One
What is a data URI? Learn how data:image/png;base64 works, see a 1×1 transparent PNG example, and when not to inline images.
How to Count Lines in a Text File (and Why It Matters)
Learn how to count lines in a text file, what blank lines mean, and why code and prose editors count differently. Includes a worked example.
How to Clean Up Messy Text Before You Publish It
Learn how to clean up messy text before you publish it. Fix extra spaces, broken line breaks, and smart quotes with a simple repeatable routine.
How to Time Anything With an Online Stopwatch
Learn how to time anything with an online stopwatch: start, lap, pause, reset, a 25-minute worked example, and limits.