FAST · PRIVATE · PRACTICAL

Useful browser tools, plus a little play.

No account, paid API, tracking cookie, or server upload. Everything here runs in your browser.

Useful tools

Trim whitespace, normalize headers, flag empty cells and remove exact duplicates.

Create basic JSON-LD with required-field validation and bulk CSV support.

Convert text to title, sentence, camel, snake, kebab, or constant case and inspect counts.

Memorize a growing sequence of orbit signals and repeat it without a mistake.

Slide tiles into order with a compact, touch-friendly number puzzle.

React only when the target signal appears. Accuracy matters as much as speed.