Text Cleaner — Remove Hidden Characters

Scan and clean text from invisible and problematic Unicode characters. Detects zero-width spaces (ZWSP, ZWNJ, ZWJ, BOM), bidirectional control marks, non-breaking spaces, soft hyphens, smart quotes, em/en dashes, ellipsis characters, and variation selectors — each with a live count before you clean. Choose exactly what to fix: strip invisible format characters, convert NBSP to regular spaces, straighten curly quotes, collapse repeated spaces, trim trailing whitespace, and normalize Unicode (NFC/NFKC). Bidi mark removal is opt-in so legitimate RTL text is never silently destroyed. Includes a highlight mode that renders every hidden character as a visible placeholder. 100% client-side — your text never leaves the browser.

Why choose Text Cleaner — Remove Hidden Characters?

Text Cleaner provides a targeted, client-side utility for detecting and removing invisible Unicode characters, zero-width spaces, and formatting artifacts that often break code or documents. With live counts for each issue and opt-in bidi mark removal, it gives users precise control over text normalization without sending sensitive data to external servers.

Good to know: Very large files or automated batch-processing pipelines may require a command-line script or programmatic library rather than a web-based utility.

How to Use Text Cleaner — Remove Hidden Characters

Quickly identify and remove invisible Unicode characters, zero-width spaces, and problematic formatting from your text.

1. 1

   Paste your text into the cleaner

   Copy the content you want to sanitize and paste it into the main input field. The tool will immediately scan for hidden characters and formatting issues.

2. 2

   Review detected invisible character counts

   Check the live counters to see exactly how many zero-width spaces, bidi marks, or smart quotes are present. Use the highlight mode to render these hidden characters as visible placeholders.

3. 3

   Configure your cleaning preferences

   Select specific options like stripping invisible format characters, converting non-breaking spaces, or straightening curly quotes. Toggle bidi mark removal if you are working with right-to-left text.

4. 4

   Apply normalization and whitespace fixes

   Choose to collapse repeated spaces, trim trailing whitespace, or normalize Unicode to NFC or NFKC formats. These settings ensure your text is clean and consistent for any application.

5. 5

   Copy your cleaned text

   Once the text looks correct in the preview, copy the sanitized result to your clipboard. All processing happens 100% client-side so your data remains private.

Estimated time: PT1M

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Remove Hidden Unicode & Zero-Width Characters | Text Cleaner

Clean text from invisible Unicode characters like zero-width spaces, smart quotes, and NBSP. Use our 100% client-side tool to sanitize text and fix bidi marks.