Text UtilitiesText CheckersFree Tool

Encoding Detector

Check whether your text is pure ASCII or contains Unicode characters, and if so, identify whether the script is CJK, Arabic, or Devanagari.

How to Use Encoding Detector
  1. 1Paste your text
  2. 2View whether it's ASCII-only and which script it likely uses
Frequently Asked Questions

No — since JavaScript strings are already decoded Unicode text by the time you paste them into a browser field, there's no raw byte encoding to detect. This tool instead checks whether every character falls in the ASCII range (code points 0-127) or not.

If non-ASCII characters are present, it checks for CJK (Chinese/Japanese/Korean unified ideographs), Arabic, and Devanagari (Hindi/Marathi/Sanskrit) Unicode ranges specifically — anything else non-ASCII is reported generically as "Extended Latin/Other" rather than a named script.

No — the detection happens entirely in your browser.

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