Multilingual editor
Review Chinese and Latin boundaries without ASCII-only splitting.
Choose zh or en, compare CJK punctuation, decimals and actual candidate text.
Can correct editorial assumptions instead of treating segmentation as grammar proof.
Sentence Length Analyzer
Inspect sentence or line candidates with language-aware segmentation, word/scalar/grapheme lengths, source offsets and complete JSON review reports.
Specialist tool for Text AnalysisLive, copy-ready outputFocused single-task workflowPrivate in your browser
Use this result well
A quick decision brief for this specific tool
Inputs that matter
Text source
Output to expect
Complete JSON report
How it works
A dedicated interactive panel for this data format or operation
- Start with the included valid sample, then replace it with your own input.
- Review errors and compare the output before replacing source data.
Choose your path
Built around the job you need to finish
Inspect locale-sensitive sentence candidates or explicit line records, compare word/scalar/grapheme lengths and trace complete segments to original UTF-16 ranges.
Accessibility-minded writer
Find segments worth reviewing without a universal length grade.
Choose words/scalars/graphemes, set a review threshold and compare complete candidates.
Threshold markers prompt contextual review, not an accessibility verdict.
Mobile transcript reviewer
Trace long or punctuation-free records without losing text.
Switch sentence/line boundaries, inspect UTF-16 ranges, sort longest first and export 220 candidates.
Original segment numbers and complete text survive sorting and preview limits.
Authoritative checks for this tool
Outputs and checklists are planning aids. Review the linked current authorities and the records, terms, instructions, and requirements that apply to your exact situation before a consequential decision.
- Unicode Text SegmentationUnicode Consortium · Boundary ambiguity and differences between grapheme, word and sentence units.
- Unicode Normalization FormsUnicode Consortium · Optional NFC comparison, without rewriting original evidence.
- Intl.SegmenterEcma International / TC39 · Supported locales and runtime word/sentence/grapheme segmentation; no silent fallback counts.
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Analysis
Reference & details
How it works
Updated August 2026
How it works
Updated August 2026Candidate boundaries
Sentence mode uses this runtime’s Intl.Segmenter for a supported language tag. Line mode uses explicit Unicode line records. Ambiguous text can differ across runtime dictionaries.
Lengths and provenance
Count word-like segments, scalars or graphemes after excluding boundary Unicode whitespace. Report original source ranges and complete untrimmed segment text separately.
Review, not grading
Mean, median, minimum and maximum describe selected lengths. A strict greater-than threshold is your review marker, not a universal readability or accessibility standard.
Updated: August 2026
Example Scenarios
Review Chinese and Latin boundaries without ASCII-only splitting. Choose zh or en, compare CJK punctuation, decimals and actual candidate text.
Find segments worth reviewing without a universal length grade. Choose words/scalars/graphemes, set a review threshold and compare complete candidates.
Trace long or punctuation-free records without losing text. Switch sentence/line boundaries, inspect UTF-16 ranges, sort longest first and export 220 candidates.
Common Mistakes to Avoid
Common Mistakes to Avoid
Treating a short segment as clear or accessible
Read the actual content and check reader needs; length alone proves neither.
Assuming every line is a sentence
Line mode deliberately treats records as candidates, including punctuation-free fragments.
FAQ
No. It provides segmentation candidates for you to inspect in context. Abbreviations, transcripts and mixed scripts can be ambiguous.
Choose a supported language tag such as zh and inspect each candidate. Runtime segmentation data can affect word and sentence boundaries.
Word-like segments, Unicode scalars and grapheme clusters measure different things. Choose the basis suited to your review.
No. It is a user-selected marker; only lengths strictly above it are flagged. Context and affected-reader feedback remain necessary.
The report includes full candidate text and source ranges for all result rows. Keep the original source too, especially whitespace-only records excluded from analysis.
About Sentence Length Analyzer
Inspect locale-sensitive sentence candidates or explicit line records, compare word/scalar/grapheme lengths and trace complete segments to original UTF-16 ranges.