Text Code Point Viewer User Guide
Inspect all code points or only invisible characters locally, with UTF-16 offsets and line/column positions.
How to use
- Choose all code points or invisible characters, paste text and inspect the code points.
- Check the escaped list, with numbers starting at 1 and UTF-16 offsets starting at 0.
- Copy the list; editing input clears the old result.
Formats and limits
- All-code-point mode supports 10,000 entries; invisible mode supports 100,000 UTF-16 code units and 10,000 lines. Valid surrogate pairs count once; lone surrogates are marked invalid.
- Invisible mode lists Unicode whitespace, format and control characters plus lone surrogates. Lines and code point columns start at 1; CR and LF each have an entry.
- Code points are not graphemes; zero-width characters can be legitimate. This tool does not clean text, assess safety or restore source files.
Output
Output a safely escaped plain-text list in logical order; data stays in page memory.
Frequently asked questions
Why can one emoji have multiple entries?
A visual grapheme can consist of multiple code points. The tool lists them individually without merging or normalization.
The file name and content are only processed in your browser and are not transmitted to the server. The original file will not be overwritten. Please export the required results before leaving the tool.