Whitespace Normalizer
Normalize whitespace in text instantly online. Trim lines, collapse multiple spaces, remove blank lines, or do all at once. Free — runs entirely in your browser.
Trim lines, collapse internal spaces, reduce blank lines to one, strip edges
Input Text
Normalized Output
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Whitespace normalization refers to standardizing the spacing, indentation, and blank lines in text to a consistent form. Raw text from various sources — web scraping, copy-paste from PDFs, OCR output, database exports, user form submissions — often contains irregular whitespace: multiple consecutive spaces, mixed tabs and spaces, trailing spaces on lines, or sequences of blank lines. These anomalies cause display inconsistencies, database storage waste, and comparison failures.
Different normalization needs require different operations. Trimming lines removes leading and trailing whitespace from each line, which is important before comparing lines or storing them in a database. Collapsing runs of spaces reduces multiple consecutive spaces to a single space, the standard for HTML text rendering. Removing blank lines compacts multi-paragraph text by eliminating empty lines, useful for dense output formats. These operations are composable — the 'All' mode applies all of them in sequence.
This tool provides five normalization modes selectable via toggle: All (comprehensive cleanup), Trim Lines (per-line edge whitespace), Collapse Spaces (inline space runs), Single Space (all whitespace runs including tabs), and Remove Blanks (empty line elimination). Normalization runs in the browser on every input change, producing the cleaned text instantly without sending data to any server.
Common Use Cases
Cleaning web-scraped and OCR-extracted text
Text extracted from web pages via scraping tools (Puppeteer, Scrapy, Beautiful Soup) and from scanned documents via OCR engines (Tesseract, AWS Textract, Google Document AI) frequently contains irregular whitespace: extra spaces between words, trailing spaces on every line, and multiple blank lines between paragraphs. Whitespace normalization is a standard first step in text extraction pipelines before further processing or storage.
Normalizing user-submitted form content
Users often paste content into web forms from word processors, PDFs, or other apps, inadvertently including extra whitespace. A product description pasted into an e-commerce CMS field may have trailing spaces on each line, double spaces after periods, or multiple blank lines between paragraphs. Normalizing on submission ensures consistent storage and display regardless of the paste source.
Preprocessing text before diffing or comparison
Text comparison tools (diff, file merge, plagiarism detection) may report false differences due to whitespace variations between two versions of the same content. A document reformatted by different word processors may differ only in trailing spaces and blank lines. Normalizing both texts before comparison focuses the diff on meaningful content changes rather than formatting artifacts.
Modes Explained
- All — Trims each line, collapses multiple blank lines to one, strips leading/trailing whitespace from the whole text.
- Trim Lines — Removes leading and trailing spaces/tabs from each individual line.
- Collapse Spaces — Replaces runs of spaces or tabs (not newlines) with a single space.
- Single Space — Replaces any whitespace run (tabs, spaces) within a line with a single space.
- Remove Blanks — Removes all empty or whitespace-only lines from the text.