Whitespace cleaner

Clean whitespace in any text — trim lines, collapse spaces, remove blank lines, convert tabs and normalize CRLF / LF line endings.

Input0 chars

Cleaned

Output will appear here as you type.

Trim each lineRemove trailing spacesCollapse multiple spacesRemove blank linesTrim start/end of document

Line endingsTabs → spaces (0 = keep tabs)

Features

Trim leading and trailing spaces, collapse repeated spaces, convert tabs to spaces and remove blank lines in one pass.
Normalize line endings between Unix (LF), Windows (CRLF) and classic Mac (CR) to fix cross-platform files.
Cleans text entirely in your browser with a live preview — nothing uploaded, no size limit.

How it works

Paste the text you want to clean into the box above.
Toggle the fixes you need — trim lines, collapse repeated spaces, remove blank lines, convert tabs to spaces.
Pick the line endings (LF, CRLF or CR); the cleaned text updates live for you to copy or download.

Your files never leave this page

Every conversion runs entirely in your browser using WebAssembly. There is no upload, no server-side processing, no analytics, and no cookies. Open DevTools → Network during the operation and you will see zero outbound traffic.

Related tools

Topics covered

whitespace cleaner online
trim whitespace tool
remove blank lines
normalize line endings
crlf lf converter
tabs to spaces online