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Sentence Counter

Count sentences, calculate average sentence length, determine readability using Flesch Reading Ease, and view a segmented sentence breakdown.

Interactive Online Utility

Sentence Counter runs 100% locally in your browser sandbox with zero network roundtrips. Load or paste your code directly into the workspace above to format, parse, validate, or generate your output instantly.

PRO TIP Local Client-Side Processing

Otuls runs 100% locally in your browser. Your data is processed in-memory and never transmitted over external network connections.

Technical Guide & Overview

Sentence Counter provides comprehensive text metrics, lexical analysis, and string transformations for writers, translators, software engineers, and SEO specialists.

How It Works Under the Hood

The analysis engine splits input strings using Unicode-aware regular expression boundaries (Intl.Segmenter and standard Unicode properties). It computes character counts, word counts, line counts, syllable distributions, reading times, and lexical density with instant responsiveness.

Authoritative Specifications & Primary Standards

Official specifications, RFCs, and authoritative open-source repositories for Sentence Counter:

Unicode Standard

Formal algorithms for detecting sentence termination punctuation and abbreviation edge cases.

W3C Standard

Guidelines for international text typography, punctuation, and linguistic boundaries.

CLI Equivalents & Terminal Automation

Word and line count with wc:
wc -w -l document.txt
Classic Unix utility for word and line statistics.

Zero-Knowledge Client-Side Sandboxing

100% private. Text is analyzed in-memory and never leaves your browser tab.