Free grammar checker for writing that says what you mean

A grammar check should fix errors without rewriting your message into someone else’s voice. Use Humanizely’s free grammar checker in Standard mode to review subject–verb agreement, tense, punctuation and sentence structure. Submit up to 500 words per free request, then compare the revision with your original. Treat the result as an editable draft: grammatical sentences can still contain incorrect facts, ambiguous instructions or wording that does not suit your reader.

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Who this checker is for

For students, job applicants, multilingual writers and professionals checking emails, essays, reports or application materials. It is especially useful when you know what you want to say but need help with articles, verb forms, sentence boundaries or punctuation.

How to check a passage in Standard mode

Paste a passage of no more than 500 words and select Standard mode for your grammar check. Include enough surrounding text to make pronouns, tense and terminology understandable. An isolated sentence such as “They were approved” gives little guidance about whether “they” means applicants, invoices or proposed changes. Read the revision alongside your original, sentence by sentence. Look first for necessary corrections: a missing article, a verb that disagrees with its subject, or two complete sentences joined only by a comma. Then review changes to wording. Keep a plain phrase if a more formal alternative adds nothing. For a longer document, work in coherent sections rather than cutting a sentence at the allowance boundary, and finish with a whole-document consistency check.

Separate grammar errors from editorial choices

Some corrections are straightforward: “She have submitted” should become “She has submitted.” Others depend on context. “The team is” is common in American English, while British English can use “the team are” when emphasizing individual members. Choose your English variety and apply it consistently rather than treating every difference as an error. Punctuation also carries meaning. Adding commas around a clause can change whether it identifies a particular group or describes everyone in that group. Likewise, changing “may” to “will” strengthens a claim; it is not a grammar correction. Review suggestions involving qualifications, obligations and uncertainty particularly carefully. Standard mode is the selected editing mode, not permission to change your intent. If a sentence is genuinely ambiguous, clarify the intended meaning yourself before accepting a polished version.

Verify facts and protect sensitive wording

A grammar checker cannot establish whether a deadline, measurement, citation or achievement is accurate merely by making its sentence fluent. Compare names, dates, amounts, units and reference markers against your source documents. Preserve quoted wording exactly; if a quotation contains an error, follow the relevant style guide instead of silently correcting the source. For résumés, do not accept revisions that turn participation into leadership or a team result into an individual achievement. For coursework and admissions writing, keep the work original, check institutional policies and disclose assistance when required. Avoid submitting unnecessary personal or confidential information. Humanizely supports 15 languages, but that does not mean every regional convention or specialist expression will be handled correctly. Domain terminology and high-stakes wording still need informed human review.

Grammar corrections explained

Original fictional examples for learning, not customer results.

Email: agreement and a missing article

Before

The revised drawings is attached. Please send approval by 14 June 2026 so we can order 12 panels, each measuring 240 × 60 cm.

After

The revised drawings are attached. Please send your approval by 14 June 2026 so we can order 12 panels, each measuring 240 × 60 cm.

“Drawings” takes “are”; “your approval” makes the request more natural. The deadline, quantity and dimensions remain unchanged. Check those details against the order, not against the grammar suggestion.

Résumé: parallel verbs without inflated achievements

Before

Coordinated weekly stock checks and help the team reduce picking errors by 8% in 2024.

After

Coordinated weekly stock checks and helped the team reduce picking errors by 8% in 2024.

Both verbs now use the past tense. The revision preserves the team attribution, 8% result and year. It does not claim sole responsibility; verify the achievement against your records before submitting.

Academic prose: repair a comma splice

Before

The trial included 48 participants, the authors reported no difference between groups [3].

After

The trial included 48 participants; the authors reported no difference between groups [3].

A semicolon separates two independent clauses without changing the claim or citation marker. Confirm that reference [3] supports both statements. Do not upgrade “no difference” to “equivalent,” which would make a different scientific claim.

Practical grammar-checking tips

  1. Resolve unclear pronouns before checking: replace “it” with the intended document, product or decision when several antecedents are possible.

  2. Keep tense changes that reflect real chronology. A completed experiment and its present implications need not use the same tense.

  3. Check negatives and qualifiers after revision. Losing “not,” “only” or “approximately” can reverse or overstate your meaning.

  4. Use one spelling convention throughout, including pairs such as “organize/organise” and “center/centre,” unless preserving a proper name.

  5. Read the final passage aloud for missing words and awkward joins, then verify numbers separately against the original.

Frequently asked questions

Is the grammar checker free?

Humanizely allows free requests of up to 500 words. That is a per-request allowance, not a promise of unlimited document-length processing.

What should I do with more than 500 words?

Split the text at paragraph or section boundaries. After checking each part, review the combined document for consistent tense, terminology and pronoun references.

Will it catch every grammar mistake?

No. Context-dependent errors can remain, and acceptable wording may be changed unnecessarily. Review the output rather than assuming every revision is required.

Can I use it for an essay or admissions statement?

Only within the applicable rules. Preserve your own ideas and authorship, follow institutional policies, and disclose assistance where required. Grammar help does not authorize prohibited AI use.

Does a grammar check verify sources?

No. Open the cited material and check that it supports the claim. Preserve quotation text, citation markers and reference details during editing.

Does correcting grammar prove a text is human-written?

No. Grammar quality does not establish authorship. AI detection is an estimate, not proof, and Humanizely does not guarantee detector outcomes.