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Intl.Segmenter Playground: Grapheme, Word & Sentence

Inspect browser-native text segments and UTF-16 boundaries by locale without uploading your text.

intl-segmenter-playgroundLOCAL WORKSPACE

Enabling local controls…

1. Text and settings

Runs in this page. Text stays in memory and is not added to the URL or saved. Limits: 4096 UTF-16 units, locale 128 characters, 2048 segments, 1 MiB report.

2. Segments and report

Enter text and run segmentation.

How to use this tool

Enter text and a locale, choose grapheme, word or sentence, then inspect or copy the complete segments and offsets.

When not to use it

Segmentation uses this browser's locale data and can vary across environments. It is not language detection, translation review or a security check.

Read the guide →