Text Cleanup & List Tools

Trim lines & remove blanks

Strip leading/trailing Unicode whitespace per line (incl. ideographic and non-breaking spaces); optional blank-line removal, inner-whitespace collapsing, left-only/right-only trimming. EOL style and trailing newline are preserved explainably.

Run in browser

Inputs and parameters

• input — Input text
• steps — Step order (comma-separated; blank = this op only)
• trimLeft — Trim line start
• trimRight — Trim line end
• dropBlank — Drop blank lines
• collapseInnerWhitespace — Collapse inner whitespace runs to one space
• lineEnding — Output line ending
• keepTrailingNewline — Trailing newline (blank = mirror input)
• includeBom — Include UTF-8 BOM on download

Real example

  apple  
  香蕉  

  café  
→ apple
香蕉

café   (blank line kept by default; check "drop blank lines" to remove line 3)

Limits and failure handling

Plain-text whitespace only: no HTML/CSV quote parsing, no AI rewriting, no subtitle timecodes. Blank lines are kept by default (only dedup collapses repeated blanks); inner-whitespace collapsing replaces tabs/ideographic spaces with a single ASCII space and is an explicit switch. Limits 2 MiB / 100 000 lines, rejected before processing and cancellable.

FAQ