What is a paraphrasing tool?
A paraphrasing tool is a tool that rewrites a passage of text in different words while keeping the meaning the same. It's used to clarify dense prose, adapt a source for a different audience, polish your own writing, or restate a quoted passage in your own words for a paper. You paste the passage in, pick a mode, and the tool returns three alternate versions you can compare side by side.
The most common comparison search is QuillBot, so it's worth being direct: QuillBot caps free use at 125 words and gates Formal, Academic, and a few other modes behind a paid plan. This tool allows 1,000 words per click, gives all six modes free, and returns three variations per click instead of one. Quality on the common modes is comparable. QuillBot is a little more polished on Academic specifically because their paid model has been tuned for it longer. For everything else, the difference is convenience and price.
How to use this paraphrasing tool
Paste up to 1,000 words into the input box. Pick a mode below the editor: Standard for a cleaner version of the input, Formal for business contexts, Casual for blog and email, Academic for hedged claims and precise word choice, Shorten when you want the same content in fewer words, Expand when it needs more support. Pick a strength: Subtle preserves the original sentence structure and only swaps wording, Medium does what an editor would do given an hour, Aggressive rewrites freely while keeping the meaning.
Click Rewrite Paragraph. Three paraphrases appear in the output panel. Switch between them with the tabs, copy the one that fits, or click again for a fresh batch. Nothing is saved, no account is required, and limits are per IP rather than per user (resets at midnight UTC). If you're paraphrasing a source from a paper or a book, you still need to cite it — see the Purdue OWL guide on paraphrasing for what counts as proper attribution. For longer rewriting jobs, the paragraph rewriter is the same engine with paragraph-friendly defaults.
When to use a paraphraser (and what to expect)
Three good reasons to paraphrase. First, you're working with a source — a quote, a study, a passage from a book — and you want to integrate it into your writing in your own words rather than as a block quote. Paraphrasing is the standard academic move for this and it requires citation regardless of whether you used a tool. Second, you wrote something that says what you mean but doesn't sound like you. The rewriter swaps phrasing without changing meaning, which is what most "make this sound better" requests actually want. Third, you're adapting prose for a different audience: same idea, different register.
What to expect from the output: three versions that mean the same thing as the input, in different words. Subtle strength keeps your sentence structure recognizably yours; Aggressive moves clauses, changes verbs, tightens rhythm. Neither version invents claims that weren't in the input — if a fact wasn't in your paragraph, it won't be in the output. That's a feature, not a limitation. A paraphraser that adds claims is a hallucinator.