Trim Whitespace (Leading, Trailing, Multiple Spaces)

Clean up text with messy whitespace — trim trailing spaces, collapse runs of spaces, remove blank lines, normalize line endings. Useful for cleaning copy-pasted content, log files, code snippets.

How to use the Trim Whitespace (Leading, Trailing, Multiple Spaces)

Paste text and tick which cleanups to apply — trim leading and trailing whitespace per line, collapse runs of spaces to one, remove blank lines, normalize CRLF to LF — then copy the cleaned output. Changes apply live as you toggle.

Cleaning up messy whitespace in one pass

Copy-pasted text tends to arrive dirty: trailing spaces left by a code editor, double spaces from old typing habits, blank lines from a PDF export, stray indentation from a web form. Each is harmless alone, but together they break diffs, inflate file size, and trip up parsers that expect tidy input.

This tool applies the common cleanups in a single pass — trim leading and trailing whitespace, collapse repeated spaces, drop blank lines, normalize line endings — with each rule as its own toggle so you keep what you want. To convert tabs to spaces specifically, use tab to space; to switch line-ending style across a whole file, the line ending converter; to remove repeated lines, deduplicate lines.

Common use cases

• Cleaning copy-paste — strip the trailing spaces and blank lines a paste drags in.
• Diff hygiene — remove trailing-whitespace noise before committing.
• Data prep — collapse irregular spacing in a column of pasted values.
• Prose tidy-up — fix double spaces after periods in one go.
• Log trimming — drop blank lines from a captured log.