The short answer
For light rewording where you stay in control, look at tools with word-level alternatives and a rewrite-strength setting: QuillBot’s synonym slider, DeepL Write’s word and sentence alternatives, or Wordtune’s multiple rewrite suggestions. For academic text, Writefull is built around research writing and QuillBot has an Academic mode. Grammarly lists six style presets, and we did not confirm that one is academic. For languages other than English, QuillBot, Grammarly and DeepL Write document multilingual options; check the exact language and feature you need. If you already use a grammar checker, the integrated options are Grammarly, QuillBot and DeepL Write.
Whichever you choose, run one real passage with a number, a name and a citation through it before relying on it, and read the provider’s current limits and data terms.
Which tool fits which job
Scroll horizontally to see the full table. Keyboard: focus the table and use the left and right arrow keys.
| Job | Tools that document it | What to check |
|---|---|---|
| Substantial rewrite of a passage | QuillBot (Creative, Expand, Shorten and other modes), Grammarly (six style presets), Writefull (three rewrite levels) | Many modes are premium on QuillBot. Compare the output with the source. |
| Sentence and word alternatives | Wordtune, DeepL Write, QuillBot, Scribbr tool | Whether the alternatives keep your terminology. |
| Academic language | Writefull, QuillBot (Academic mode) | Discipline-specific terms and citations survive the rewrite. |
| Languages beyond English | QuillBot (20 or more), Grammarly (six), DeepL Write, Scribbr tool (says multilingual) | Whether your language is listed, and at what quality. |
| Grammar and rewording together | Grammarly, QuillBot, DeepL Write, Wordtune, Writefull | Where it runs: browser, Word, Overleaf or an app. |
Key takeaways
- Pick by the job: light sentence alternatives, deeper rewriting of a passage, academic register, a non-English language, or a combined grammar and rewording workflow.
- Language coverage differs sharply. Wordtune says most of its features currently produce results only in English, Grammarly lists six languages, and QuillBot says 20 or more. Check your language on the provider’s page before you commit.
- Several free versions are limited. QuillBot’s free tier has limited use and only two modes, and the Scribbr tool takes up to 125 words per input.
- Rewriting can change a figure, a qualifier or an attribution, so compare every output with the source.
- Paraphrasing is not proof that you wrote the ideas. Cite the original, and follow your course or employer rules on AI assistance.
Where this guide stops and the humanizer guides begin
This page covers tools whose main job is rewording and editing text you supply. Tools sold mainly to rework AI-drafted text are covered in the best AI humanizer ranking, and the humanizer versus paraphraser guide explains why the labels overlap. Some products on this page also sell a humanizer mode, which we do not assess here.
Tool profiles: reason to consider, and one limit
Each profile names one documented reason to consider the tool and one limit from the provider’s own pages. Pricing is not covered because billing terms were not verified.
QuillBot
Reason to consider: QuillBot documents a synonym slider that controls how much vocabulary changes, and modes including Formal, Simple, Creative, Academic, Expand, Shorten, Humanize and Custom. It says it paraphrases in 20 or more languages and offers a Chrome extension, a Word add-in and a grammar checker.
Limit: the free version has limited usage and includes only the Standard and Fluency modes, so the academic and creative options need Premium.
Grammarly Paraphraser
Reason to consider: a free Grammarly account gives access to a paraphraser agent with six preset styles, a custom voice, and rewrites in English, Spanish, French, German, Portuguese and Italian. It sits next to Grammarly’s grammar, citation and detector tools.
Limit: Grammarly’s own FAQ says paraphrasing tools can miss nuance, may sound less natural without light editing, and may not match your tone. Its multilingual option needs a free account, even though the page title mentions no sign-up.
Wordtune
Reason to consider: Wordtune offers a list of rewrite suggestions for a sentence and, on the free plan, unlimited grammar and spelling corrections. Casual and formal tone and expanding or shortening text are Premium features.
Limit: Wordtune’s help article says most of its features currently produce results only in English. You can input text in other languages, and Wordtune lists ten languages it can translate into English before rewriting: Spanish, Mandarin, Arabic, Hindi, Korean, Hebrew, Russian, German, French and Portuguese.
DeepL Write
Reason to consider: DeepL Write offers word and sentence alternatives, a choice of writing style and tone, a corrections-only mode, and a show-changes view that lets you see what moved.
Limit: DeepL’s help page states a 1,500-character input limit without an account. DeepL Write supports Chinese, English, French, German, Italian, Japanese, Korean, Portuguese and Spanish, with regional variants for English and Portuguese. A DeepL Pro (Translator) plan does not include the paid version of DeepL Write; DeepL offers a bundle that combines both. Source: DeepL Write help, checked October 14, 2026.
Scribbr Paraphrasing Tool
Reason to consider: it needs no sign-up, offers Standard and Fluency modes, and accepts uploads of Word, Google Docs and PDF files.
Limit: Scribbr says the tool is powered by QuillBot and takes up to 125 words per input. Scribbr also says that both it and QuillBot are Learneo, Inc. services, so it is not an independent engine from QuillBot.
Writefull
Reason to consider: Writefull describes itself as built for academic writing, with models trained on journal articles, a paraphraser with three rewrite levels, an Academizer that makes informal sentences academic, and add-ins for Word and Overleaf.
Limit: confirm the usage allowance and supported language for the Writefull product you intend to use. This guide does not establish those limits or compare the quality of its output with other tools.
Check meaning and attribution after any rewrite
Deeper rewriting gives a tool more room to alter what a sentence says. Check each output against the source for these changes:
- A figure, date or unit that moved or disappeared.
- A qualifier such as “mainly” or “may” that became stronger or weaker.
- A quotation or attribution that lost its source.
- A technical term replaced by a near synonym.
The features checklist and the buying checklist give a repeatable way to compare outputs on the same draft.
Paraphrasing does not show who wrote an idea
Rewording a source does not make the idea yours. Scribbr states that paraphrasing without crediting the original author is a form of plagiarism, and Grammarly’s FAQ tells writers to cite sources when paraphrasing research. A paraphrasing tool also does not prove that you wrote a text, so keep your notes, drafts and sources, and follow the rules your school or employer sets for AI assistance, which these tools cannot change.
How we compared these tools
We used each provider’s own product and help pages, read on October 13 and 14, 2026, and recorded each statement with its source. Where a page could not be opened, we used another official page from the same provider. These are provider statements, not AIHT test results, and we did not compare output quality or accuracy of meaning across tools. Features, limits and languages change, so check the provider’s page before you pay. This page does not use AIHT Ratings.
Sources
- QuillBot, AI Paraphrasing Tool (vendor; modes, free limits, languages; checked October 14, 2026)
- Grammarly, Free Paraphrasing Tool (vendor; styles, languages, limitations; checked October 14, 2026)
- Wordtune language help (vendor; English-language output and translation into English; help article dated October 8, 2024)
- DeepL Write (vendor; alternatives, styles, Pro style rules; checked October 14, 2026)
- Scribbr, Free AI Paraphrasing Tool (vendor; QuillBot-powered, input limit, plagiarism statement; checked October 14, 2026)
- Writefull (vendor; academic focus, widgets, integrations; checked October 14, 2026)
Frequently asked questions
What is the best paraphrasing tool?
It depends on the job. Match the tool to your need: control over word choice, deeper rewriting, academic phrasing, a non-English language or a combined grammar workflow.
Is a paraphrasing tool the same as an AI humanizer?
The labels overlap. A paraphraser usually rewords text you supply at a strength you choose, while a humanizer is marketed for reworking AI-drafted text. See the humanizer versus paraphraser guide.
Do I still need to cite a source if I paraphrase it?
Yes. Scribbr and Grammarly both say paraphrased ideas need a citation to the original source.
Can a paraphrasing tool change the meaning of my text?
Yes. Grammarly’s own FAQ says paraphrasing tools can miss nuance. Compare the output with the source, especially figures, qualifiers and attributions.