Oxford Comma Consistency Checker
TextScan a document for comma-before-and/or usage in three-or-more-item lists and flag documents that mix Oxford comma styles.
The Oxford (or serial) comma, the comma before "and" or "or" in a list of three or more items, is one of the most debated style choices in technical writing, and the real problem is rarely picking a side: it is mixing both styles in the same document. This tool scans pasted text for every list of three or more items joined by "and" or "or", records whether each one used the Oxford comma, and flags the document as inconsistent the moment it finds both styles. It reports each detected list with a short snippet so you can jump straight to the spot that needs fixing. It is a punctuation heuristic rather than a full grammar parser: it looks at comma counts and sentence boundaries, so an unrelated comma earlier in the same sentence can occasionally be miscounted as part of a list. It runs entirely in your browser with no external calls.
How to use Oxford Comma Consistency Checker
- 1.Paste a document that contains lists of three or more items, or load one of the built-in examples.
- 2.Check the consistency verdict and the counts of lists with and without the Oxford comma.
- 3.Review each flagged list's snippet and edit the inconsistent ones to match your chosen style.
Frequently asked questions
Use via API, SDK, or MCP
cURL# Free: 1,000 req/day · Pro: 10,000 req/day
curl -X POST https://api.utilix.tech/v1/tools/oxford-comma-checker \
-H "Authorization: Bearer utx_live_..." \
-H "Content-Type: application/json" \
-d '{"text":"I bought apples, bananas, and pears. Then I bought milk, eggs and bread."}'Get an API key from your dashboard · Full API docs →