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Trim Whitespace

Strip leading and trailing spaces from every line.

Text Input
Trimmed Output

Trim Whitespace

Remove the leading and trailing spaces and tabs from each line. Use the collapse option to also squeeze multiple internal spaces down to a single space for perfectly even spacing.

Trim options

  • Trim leading and trailing whitespace per line
  • Optionally collapse repeated inner spaces
  • Removes stray tabs as well as spaces
  • Keeps the line structure intact

Where it helps

Clean up data pasted from spreadsheets, normalize indentation, fix misaligned lists, and remove the invisible padding that breaks comparisons and lookups.

Why trailing spaces matter

Trailing whitespace is invisible but real โ€” it can break string comparisons, inflate file sizes, and trigger linter warnings. Trimming guarantees that two lines that look identical actually are identical.

100% Private & Processed Locally

Every conversion on this page runs entirely inside your browser using JavaScript. Your data is never uploaded to a server, logged, or stored โ€” making this tool safe even for sensitive payloads such as API responses, configuration files, and access tokens.

Because there is no network round-trip, conversions are instant and work even when you are offline. It is free to use with no sign-up, no rate limits, and no ads injected into your output.

Frequently Asked Questions

Common questions about the Trim Whitespace.

What does trimming whitespace do?
It removes leading and trailing spaces and tabs from every line, and can optionally collapse repeated inner spaces.
Why does trailing whitespace matter?
Invisible trailing spaces can break string comparisons, inflate file size, and trigger linter warnings.
Is my text private?
Yes. All trimming happens in your browser and your text is never uploaded.

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