grammar-check

Supply your text and request a grammar check. The output includes corrected text plus a report where every change is listed in a table with its location, the original and corrected phrase, the numbered rule applied, and a one-sentence explanation.

It applies 15 rules covering subject-verb agreement, verb tense, sentence completeness, pronoun reference, articles, prepositions, modifier placement, parallelism, word form, word choice, punctuation, capitalization, spelling, hyphenation, and number consistency.

Yes. If you request only corrected text, the output contains just the corrected text with no report. You can also choose a compact Markdown format instead of the default HTML report for short inline checks.

No. Factual claims, citations, variables, code, equations, names, and quoted text are preserved unless you explicitly ask for changes. Corrections are limited to grammar, mechanics, and idiomatic usage.

For inputs longer than 1,500 words, the grammar notes table groups rows by the document's section headings, or by paragraph ranges when headings are absent, keeping the report navigable.

The output states "No grammar issues found." and returns your supplied text unchanged. The check only reports visible issues and never invents problems to cover every rule.