Tutorials, deep-dives, and privacy-first thinking about developer tools.
Showing 25–36 of 105 posts
A kitchen timer online beats the one-at-a-time timer on your phone. Twelve recipe presets, all bookmarkable links, plus the browser APIs that keep them honest.
Semicolon CSV files aren't broken exports. They come from Excel's locale list separator. Here's why it happens and how to read the files anywhere.
The Notification API lets a timer reach you after you switch tabs. Here is the permission flow, the options that matter, and the failures nobody warns you of.
Your CSV opens as mojibake in Excel because the file declares no encoding. Here is why it happens, how a UTF-8 BOM fixes it, and when the BOM backfires.
Pomodoro vs timeboxing vs Flowtime, compared on interruptions, breaks and estimates — with a decision table for picking the method that fits your work.
What Lorem Ipsum actually is, where the Latin comes from, how much filler a mockup needs, and the moments when placeholder text quietly ruins a design.
A Web Audio API beep needs no audio file. One oscillator, one gain node and five lines of JavaScript give any timer an alarm that never fails to load.
Excel to JSON does not require uploading your spreadsheet anywhere. Here is the browser-only workflow, plus the date and precision traps that corrupt data.
RFC 4180 defines CSV in a single page, yet parsers still break on quotes, CRLF, BOMs and semicolons. Here are the edge cases and how to handle each one.
Background tab throttling is why your JavaScript timer falls minutes behind. Here is what Chrome and Firefox actually do, and the fix that survives it.
setInterval drift is why your 60-second timer finishes late. Here is why the event loop causes it, and how performance.now() fixes it for good.
Privacy-first color tools keep brand assets on your machine. Here is how to test whether an online color picker uploads your image, and why it matters.