Why do Thai, Khmer, Burmese, and Lao have no spaces between words?

These scripts traditionally write words without separating spaces, so word boundaries must be inferred from a dictionary rather than read from whitespace.

How accurate is the segmentation?

It uses your browser's built-in Unicode dictionaries. Thai is reliable, Lao and Khmer are supported but vary by browser, and Burmese is experimental and often breaks by syllable. Results can differ between Chrome, Safari, and Firefox.

Which browsers are supported?

Any browser with Intl.Segmenter: Chrome and Edge 87+, Safari 14.1+, and Firefox 125+ (April 2024). Older browsers show a notice.

What is the zero-width space output for?

Joining words with a zero-width space keeps the text looking unchanged while adding invisible break points, so it wraps correctly across lines without visible spaces.

Is my text uploaded anywhere?

No. All segmentation runs locally in your browser using the native Intl.Segmenter — nothing is sent to a server.

Why do Khmer or Burmese word counts look too high?

For those scripts the engine often breaks text into syllable clusters rather than full words, which inflates the count. Treat Khmer and Burmese counts as approximate.

SEA Word Segmenter — Thai, Khmer, Burmese, Lao

Split spaceless Thai, Khmer, Burmese, and Lao text into words — 100% in your browser, nothing uploaded.

Text

Paste Thai, Khmer, Burmese, or Lao text. The script is detected automatically.

Language:

Paste text above, or try an example button.

Segmentation runs entirely in your browser (Intl.Segmenter) — your text is never uploaded. Quality varies by script and browser; see the notes on the right.

About

About SEA Word Segmenter — Thai, Khmer, Burmese, Lao

Thai, Khmer, Burmese, and Lao are written without spaces between words, so a simple whitespace split returns nothing useful. This tool uses your browser's built-in Unicode engine (Intl.Segmenter, following UAX #29) to find real word boundaries — essential for search indexing, line-break insertion, text truncation, and word counting. Paste text in any of the four scripts and see each word as a separate chip, with a live word count.

You can copy the result in several forms: space-separated, newline-separated, a custom separator, or joined with zero-width spaces (ZWSP) so the original text keeps flowing visually while gaining soft break points for correct line wrapping. Script detection is automatic (you can also force a language), and mixed-script input is handled because segmentation is driven by each character's script, not the chosen locale.

Everything runs locally — your text is never uploaded. A note on quality: segmentation accuracy depends on the dictionaries your browser ships. Thai is reliable everywhere; Lao and Khmer are supported but vary by browser (Chrome ships reduced dictionaries); Burmese is experimental and often breaks by syllable rather than word, so counts can run high. Results may also differ between Chrome, Safari, and Firefox. Requires Chrome/Edge 87+, Safari 14.1+, or Firefox 125+.

How to use SEA Word Segmenter — Thai, Khmer, Burmese, Lao

Paste your text
Drop in Thai, Khmer, Burmese, or Lao text. Script is detected automatically; you can also pick a language.
Read the word boundaries
Each detected word appears as a separate chip, with a live word count.
Choose an output format
Copy the words space-separated, newline-separated, with a custom separator, or joined with zero-width spaces for line breaking.
Mind the quality tier
Thai is reliable; Lao and Khmer vary by browser; Burmese is experimental — verify counts for those scripts.

Frequently asked questions

Text Diff Checker

Compare two texts side-by-side and highlight the differences between them.

Search Tools

How it works

Quality by script

Browser support

Zero-width space output

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