文本暂存

A persistent text workspace

The Scratchpad is a plain-text editor with case conversion, line operations, find and replace, and pattern extraction. It auto-saves to your browser's local storage so a refresh or accidental close keeps the content. Use it for quick notes, list tidying, log scrubbing, or shaping text before pasting elsewhere.

1. Tool panels

• Case. Switches the buffer between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, or kebab-case in one click.
• Lines. Sorts lines alphabetically, by length, or in reverse, shuffles them, removes duplicates, and adds or strips line numbers.
• Clean Up. Trims whitespace, removes empty lines or repeated spaces, joins lines into a paragraph, wraps text at 80 or 120 characters, and encodes or decodes URL escapes.
• Find & Replace. Plain or regex search with a live match counter, single replace, and replace-all.
• Extract. Pulls unique emails, URLs, or numbers out of the buffer into a list you can copy in one click.

2. Editing and saving

• Auto save. A short debounce writes the current text to localStorage, and the status bar shows the last saved time.
• Undo. Native Ctrl/Cmd+Z works after every transform because changes go through the textarea input pipeline.
• Copy / Download / Clear. Bottom-right buttons copy the full buffer, save it as scratchpad.txt, or clear the buffer and the saved draft after a confirmation.