Parsed in python: 01001000 01100101 01101100 01101100 01101111 is Hello. Partial groups are left-padded with zeros.

Remove all HTML tags and decode entities to plain text.

Convert plain text to HTML paragraphs with escaping and headings.

Convert JSON objects to clean YAML, client-side.

Parse YAML and export formatted JSON.
Track habits across the week on a click-to-toggle grid with live streaks and completion percentages, stored in the browser so the week survives a reload.

A scratchpad that opens with a worked sample note and counts words, lines, sentences and reading time as you type, autosaving to the browser and exporting as a text file.

A task list with three priority levels, click-to-complete rows, a progress bar and an open-versus-done count, saved in the browser so the list survives a reload.

The tip on any bill, what each person owes when the bill is split, and how much of that share is gratuity, with the arithmetic written out line by line.