Unicode Control Characters

Unicode control characters are often invisible and can silently alter parsing, rendering, and data exchange.

Quick checks

  • Find C0/C1 controls hidden in copied text.
  • Prevent parser and CSV/JSON ingestion issues.
  • Review non-printable bytes before storing data.

Unicode Inspector

Inspect pasted text for invisible or risky Unicode characters, visualize findings, and generate cleaned output entirely in your browser.

Drop .txt/.csv/.json here

or click to choose a file (max 2 MB)

Summary

: 0: 0Whitespace: 0Control: 0Homoglyph: 0Security: 0Total: 0

Results

SymbolCategoryUnicode nameCode pointOccurrencesPositionsActions

No findings

No matching characters found in the current analysis snapshot.

Homoglyphs

TokenScriptsRiskConfusables countPositions

No homoglyph findings

No mixed-script or confusable lookalikes detected.

Security

TypeRiskRangeControls countDetails

No security findings

No Trojan Source-style bidi sequence issues detected.

Overlay view

Cleaning actions

Output

Advanced JSON report

Share link does not include raw text. Findings only.

Loading ad slot

FAQ

Are all control characters unsafe?

No. Newline and tab are often expected, while unexpected controls in identifiers or payloads are risky.

Why do APIs reject seemingly normal text?

Many validators disallow non-printable controls, which can trigger hard-to-debug validation failures.

Should I remove every control character?

Prefer context-based cleanup. Keep expected formatting controls and remove unexpected ones.