UTF-16 code unit length

Client

Count UTF-16 code units (JavaScript string .length).

About UTF-16 code unit length

Count UTF-16 code units (JavaScript string .length). The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

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Nearby workflows on Toolcore

  • Grapheme count — Count user-perceived characters (grapheme clusters). for the next text or markup step in your edit loop.
  • Unicode code points — Show Unicode code point for each character in text—UTF-16 code units, browser-only inspector. for the next text or markup step in your edit loop.
  • Word & character count — Words, characters, lines, and reading time—paste any text, all client-side. for the next text or markup step in your edit loop.
  • Unicode normalization — Apply NFC, NFD, NFKC, or NFKD normalization to text—code point counts and copy output, browser-only. for the next text or markup step in your edit loop.

Common use cases

  • UTF-16 code unit length for quick local checks without uploading data.
  • Copy results into tickets, docs, or classroom notes.

Common mistakes to avoid

  • Unexpected input shape

    See the intro and how-to notes for accepted formats.

FAQ

Is processing local?

Yes—this runs entirely in your browser.

Agent prefill?

Use q or qb for the main text field when supported.

More tools

Related utilities you can open in another tab—mostly client-side.