How to use Grapheme, Terminal Width & Invisible Character Analyzer

Segment user-perceived characters and expose code points, UTF sizes, terminal columns, bidi controls, and invisible clusters.

1. Paste, type, or drag and drop a supported text file into the input area.
2. Review the input and the clearly labeled output behavior.
3. Select “Run tool” or press Ctrl/Command + Enter, then copy, download, or move the result back into the first input for another pass.

What the result means

A sortable grapheme table with practical terminal-width and invisibility indicators.

Privacy and safety

This utility is loaded as browser code and processes your input only in this tab. OmniCastConverter has no upload endpoint and never stores your content, filenames, tokens, or secrets. Generated markup and code are shown as inert text and are never executed.

Limitations

• Everything is processed in this browser tab. Input, filenames, keys, and output are never uploaded or saved. Terminal columns are an approximation; font shaping, emoji presentation, locale, and terminal Unicode tables can differ.

Try the included example

Select “Load example” at any time to restore this tested sample.

Aą é 👩‍💻 漢​‮