Review sentence grammar, clarity, and flow.
A sentence checker reads each sentence on its own terms: is it grammatically complete, does it say one clear thing, and does it lead smoothly into the next one? Paste a single line or a full paragraph into the box, and the Sentence Checker returns a reviewed version with written notes on what changed and why. It looks for fragments, run-ons, agreement errors and tangled word order, and it also points out sentences that are correct but hard to follow. Every note is a suggestion, so you decide which ones to keep.
The review works at the level of the sentence, so it focuses on how each one is built and how it connects to its neighbors, rather than on spelling alone.
Give the checker enough context to judge flow, and tell it anything it cannot guess from the text alone, such as who will read it or which spelling convention you follow.
Input: “Because the update was delayed. The team, who had already announced it, were forced to postpone the launch and they apologized to customers.” The kind of feedback to expect: the first line is a fragment and should join the next sentence; “were” may become “was” in US usage; and the long second sentence reads better split after “launch.” Illustrative, not recorded output.
Notes fall into two kinds. Corrections fix something that is wrong, such as a missing verb or a broken agreement. Judgment calls suggest a clearer order or a shorter sentence; accept them only if they keep your meaning and voice. When a note is unclear, compare the original and revised sentence side by side before deciding.
The Sentence Checker is for structure and readability within and between sentences. For a long document where you mainly want spelling, punctuation and grammar corrected in one pass, the Grammar Checker fits better. For a sentence that is already correct but needs fresh wording, try the Sentence Rewriter.
Sentence problems tend to appear where you write fast, write in a second language, or revise text that someone else, or an AI model, drafted first, so those are good places to start.
Paste it with a little surrounding text and run a check. The feedback says whether the sentence is complete and grammatical and, if not, what to change. A sentence can also be correct but hard to read; the checker notes that separately, so you can tell real errors from style choices.
Yes, these are among the main things it looks for. It explains whether a fragment should join a nearby sentence or needs its own verb, and whether a run-on is better split, joined with a conjunction or fixed with a semicolon. Some fragments are deliberate in casual writing, and you can keep those.
Both. A single sentence gets a close look at its grammar, while a paragraph also lets the checker judge flow and repetition between sentences. You can paste up to 50,000 characters or import a TXT, DOC or DOCX file, though shorter sections give feedback that is easier to act on.
There is no dialect switch. Write the convention you want at the top of your text, for example “Use British spelling,” and the checker follows it. Without that note, it usually keeps whichever convention your sentences already use and points out any mix of the two.
It aims to keep your meaning and fix only the form, but an AI suggestion can still shift emphasis or drop a qualifier such as “usually” or “in most cases.” Compare each revised sentence with your original, especially in technical, legal or academic writing where small words carry weight.
No. There is no as-you-type checking, inline underlining or one-click accept. You paste or import text, run the check, and read the reviewed version with notes in the output panel. From there you can edit, copy or download the result.
It is designed to catch common structural errors, but it is an AI reviewer, not an authority. It may miss problems in specialist terminology or flag a stylistic choice you made on purpose. Treat each note as a suggestion to verify, and rely on your style guide or instructor when a rule is disputed.
Yes. Checks require sign-in and use words from your paid plan allowance. You can paste and prepare your text before signing in, and the output can match your input language or be set to English, Simplified Chinese, Spanish, French or German.
Paste a paragraph with its neighbors so the checker can judge both the grammar and the flow.
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