Проверка длинных предложений — Найдите и исправьте ошибки мгновенно

Проверка длинных предложений: вставьте текст, чтобы автоматически обнаружить длинные предложения и ошибки пунктуации, и получите предложения по исправлению.

Detected issues

No obvious run-ons detected. Try longer paragraphs or typical comma-splice patterns.

Почему важны длинные предложения

A run-on sentence occurs when two or more independent clauses are joined incorrectly — usually without punctuation or with just a comma where stronger punctuation is required. Run-ons slow readers down, obscure meaning, and reduce the perceived quality of your writing. Whether you're drafting an email, a blog post, or academic work, clean sentences increase clarity and persuasion.

Readers expect sentences to have clear boundaries. When those boundaries blur, it makes it harder for them to follow your ideas. That’s why a small tool — a Run On Sentence Checker — can save minutes and improve the impact of every paragraph.

Распространенные типы длинных предложений

  • Fused sentences: Two independent clauses joined with no punctuation. Example: “The meeting ended the team left.”
  • Comma splices: Two independent clauses joined only by a comma. Example: “She wrote the report, she forgot to attach it.”
  • Overly long sentences: Multiple clauses run together without clear separators — often a sign to split for clarity.

Как работает проверка

The checker uses a few lightweight patterns and heuristics that work well for everyday writing:

  • Sentence tokenization: Break the text into candidate sentences using punctuation and newline boundaries.
  • Comma splice detection: Look for commas that join two independent-looking clauses (two capitalized words or two independent verb phrases).
  • Length heuristics: Long sentences with multiple verbs often hide run-ons — the checker flags those for review.
  • Confidence scoring: Each flagged item has a confidence level so you know what’s nearly certain vs. what’s worth a human look.

These heuristics are fast and run entirely in the browser, so your text stays private and the checks happen instantly.

Интерфейс и опыт пользователя

A strong UI reduces friction. Key UX features that this page includes or recommends:

  • Large editable textarea that accepts pasted text and supports keyboard navigation.
  • Inline highlights for flagged sentences with an inline reason tooltip ("comma splice", "long sentence").
  • Preview fixes — show two or three alternate corrections the user can preview or apply with one click.
  • Non-destructive edits — allow undo and preserve the original so the user remains in control.
  • Accessibility — readable colors, focus states, ARIA attributes for screen readers, and keyboard-only flows for applying fixes.

Часто задаваемые вопросы и быстрые ответы

Q: Инструмент автоматически исправит мой текст?
A: No — it offers suggested fixes and previews so you choose the tone and structure you prefer. Auto-correct can be risky in nuanced writing.
Q: Он точен для всех стилей (юридический, творческий)?
A: It’s optimized for general-purpose English. For specialized styles (legal documents, poetry), treat the suggestions as starting points and apply human judgment.
Q: Мой текст останется конфиденциальным?
A: By default this tool can run in the browser so your text stays local. If you enable cloud-enhanced checks, you will be informed and can opt out.

Use this Run On Sentence Checker as a fast assistant to surface structural problems. Writing remains a human craft — tools help you polish, but your final voice and tone are what matter most.