Does it generate new content?

No. It restates the sentences you supply. "Fuller" expands contractions and points out which sentences are thin, but it will not invent the missing detail — that is your writing to do.

Can I see exactly what changed?

Yes — the result is shown as a word-level diff, with additions and deletions marked, so you can check every change before accepting it.

Does it work without Chrome's AI?

Yes. The rule-based transforms (contraction expansion, filler removal, hedge trimming) are deterministic and available in every browser, offline.

Paraphrasing Tool — Free, Private, Shows Every Change

Restate your own sentences in a different register — formal, casual or tighter — with a word-level diff. It reworks what you wrote rather than generating new claims.