Clean up messy whitespace in seconds
You know that text you pasted from a PDF that has four spaces before every line and random extra spaces between words? Or the code file where your linter is screaming about trailing whitespace? This tool fixes that.
Three modes: trim leading (spaces at the start of lines), trim trailing (spaces at the end), or trim both. There’s also a toggle to collapse multiple spaces between words down to a single space. Each line gets processed independently, so your overall text structure stays intact.
Trim modes
- Both sides, strips whitespace from the start and end of every line
- Leading only, removes indentation but keeps trailing spaces
- Trailing only, keeps indentation, removes invisible end-of-line spaces
- Collapse extra spaces, turns “Hello World” into “Hello World”
- Handles both spaces and tabs
- Line-by-line processing
- Everything stays in your browser
Quick example
The line Hello World becomes:
- Trim both + collapse:
Hello World - Trailing only:
Hello World(leading spaces preserved) - Both sides, no collapse:
Hello World(extra internal spaces preserved)
Pick the combination that matches what you need.
Where you’ll use this
Trailing whitespace in code: most linters flag it. Trailing-only mode strips those invisible characters without touching your indentation. Quick fix before committing.
Copy-paste disasters: text from PDFs, emails, and web pages carries all kinds of extra whitespace. Trim both sides with collapse enabled and the formatting snaps back to normal.
Data normalization: database exports and form submissions often have inconsistent spacing in text fields. Trim before importing or processing.
Markdown: trailing spaces in Markdown create unintended line breaks (<br>). One trim pass prevents layout surprises.
Config files: trailing spaces in .env files, YAML, or other config formats can cause subtle parsing bugs that are a pain to track down. Trim them out.
For a complete cleanup workflow, pair this with the Empty Line Remover (for blank lines) and the Duplicate Line Remover (for repeated entries). Those three together handle most text formatting problems.
One warning: the “collapse extra spaces” option doesn’t know about context. It’ll reduce spaces inside quoted strings too. If you’re working with code that has intentionally aligned comments or formatted output strings, keep that option off.
FAQ
What’s leading vs trailing whitespace?
Leading: spaces or tabs before the first visible character on a line. Trailing: spaces or tabs after the last visible character. Both are usually invisible in text editors but can cause problems in code, config files, and data processing.
Does it strip tabs?
Yes. Spaces and tabs are both treated as whitespace and trimmed uniformly.
Will collapse affect text inside quotes?
Yes. It reduces multiple spaces to one everywhere on the line, including within quoted strings. If exact internal spacing matters, leave collapse disabled.
Can I clean CSV data with this?
Yes. Trimming whitespace from CSV fields is a common cleanup step. For CSV-specific validation, run the output through the CSV Validator afterward.
Is my text private?
Yes. All processing happens in your browser. Nothing is transmitted.