Online Tool Store
Comma Splice Detector
Paste a paragraph to flag likely comma splices, two independent clauses joined only by a comma, with a suggested fix for each one. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Example shown — replace it with your own paragraph.
Flagged issue
Suggested fix: "The deploy finished early. The team went home." or "The deploy finished early, so the team went home."
How it works
- Paste a sentence or paragraph.
- Clauses joined only by a comma are flagged as likely splices.
- A suggested fix — period, semicolon, or conjunction — is shown for each one.
FAQ
What exactly is a comma splice?
Two independent clauses — each of which could stand alone as its own sentence — joined by only a comma, with no conjunction or semicolon. "It rained, we stayed inside" is a splice; "It rained, so we stayed inside" is not.
What are the ways to fix one?
Split it into two sentences with a period, join the clauses with a semicolon, or add a coordinating conjunction (and, but, so, or, for, nor, yet) after the comma.
Does this catch every comma splice?
It flags the common, clear-cut pattern of two independent clauses joined by a bare comma. Subtler or borderline cases still benefit from a human read-through.
How we compare
| Feature | Online Tool Store | Reading the paragraph aloud | A full grammar-checking browser extension |
|---|---|---|---|
| Focused specifically on comma splices | Yes | No | One of many checks |
| No install required | Yes | Yes | No |
| Suggests a specific fix | Yes | No | Sometimes |
For a quick pass on a paragraph before publishing, this catches splices faster than reading it aloud.