Best AI Paraphrasing Tools: 6 Tools Compared
· Updated October 18, 2026
Quick answer: QuillBot is the best AI paraphrasing tool for most people. It has nine rewrite modes, a word-change slider and a low yearly price. Pick Wordtune for natural, sentence-by-sentence rewrites that still sound like you.
Pick Grammarly if you want paraphrasing, grammar fixes, plagiarism checks and citation help in one subscription.
Most paraphrasers now sit inside bigger writing suites. Many add "humanize" modes, and each one limits free use differently. Below we compare six popular options on rewrite quality, control, free limits and price.
The best AI paraphrasing tools at a glance
the best AI paraphrasing tools in 2026 are QuillBot for dedicated rewriting with multiple modes, Wordtune for natural sentence-level polish, and Grammarly as the best all-in-one with a built-in paraphraser. Rewording still does not replace citing your sources.
| Tool | Best for | Price |
|---|---|---|
| QuillBot | Students and writers who rewrite a lot | Free tier; from around $8/mo |
| Wordtune | Professionals writing emails and reports | Free tier; from around $10/mo |
| Grammarly | People who want grammar, tone and rewriting in one | Free tier; from around $12/mo |
| DeepL Write | Multilingual and non-native English writers | Free tier; Pro from around $9/mo |
| Rytr | Freelancers and small teams on a budget | Free tier; from around $9/mo |
| Paraphraser.io | Casual users who want fast free rewrites | Free tier; from around $7/mo |
What are AI paraphrasing tools?
An AI paraphrasing tool rewrites text so the meaning stays the same but the words and sentence structure change.
You paste in a sentence, a paragraph or a full draft. You choose a style such as formal, simple or shorter. The tool gives you a new version.
Good tools let you control how much changes, keep key terms fixed, and compare a few options before you accept one. People use them to:
- fix clunky sentences;
- simplify jargon;
- change tone;
- cut text to fit a word limit;
- refresh their own older content.
It is just as important to know what these tools do not do. Paraphrasing does not remove the need to cite sources.
If you reword someone else's ideas, research or writing without credit, it is still plagiarism. That holds even when no sentence matches the original.
Paraphrasers also do not reliably get text past AI detectors. Some tools sell "humanize" modes, but detectors change often. Results vary from one checker to the next, and no tool can promise your text will pass.
Use these tools as editing helpers for your own work, not as a way to hide where words came from.
How we compared these AI paraphrasing tools
We reviewed each tool's current product pages, plan pages and help documents in 2026. Then we cross-checked features and known weak spots against recent independent reviews.
We weighed five things:
- rewrite quality (does the meaning survive and does it read naturally);
- control (modes, tones, length options and word-level edits);
- free-tier limits;
- price for regular use;
- extras for real work, such as plagiarism checks, citation help, integrations and language support.
We did not score tools on how well they "beat" AI detectors. That is not a fair or stable test, and it is not what a paraphraser should be used for.
Prices change often and vary by country and billing term, so we give rough starting prices only. Always confirm the current price on the official plan page before you pay.
The best AI paraphrasing tools in 2026
Here are the six tools, ranked by how well they serve most writers who want clear, honest rewrites.
1. QuillBot: Best dedicated paraphraser
What it does well. QuillBot is built around paraphrasing first, and it shows. You get nine rewrite modes, from light Fluency fixes to bolder Creative rewrites. You also get custom modes you describe yourself.
A slider sets how many words change. You can freeze words you want left alone, which is handy for names, product terms and technical words.
Key features:
- Nine modes: Standard, Fluency, Formal, Academic, Simple, Creative, Expand, Shorten and Humanize, plus custom modes
- A synonym slider to control how much of your text changes, and freeze words to lock key terms in place
- Bundled grammar checker, plagiarism checker, AI detector, summarizer, translator and citation generator
- Works on the web, as a Chrome extension, as a Microsoft Word add-in and in mobile apps
Pricing: Free tier with the Standard and Fluency modes and a 125-word limit per paste. Premium is around $8/mo billed yearly (roughly $20/mo month to month). It removes the length cap and unlocks every mode.
Best for: Students, bloggers and anyone who paraphrases often and wants fine control over how much the text changes.
Limitations: The free 125-word cap means long drafts must go in small chunks. Creative mode can drift from your original meaning, so read every output. The Humanize mode is not a dependable way to pass AI detection.
2. Wordtune: Best for natural rewrites
What it does well. Wordtune, made by AI21 Labs, focuses on sentence-level rewrites that keep your own voice. Highlight a sentence and it offers several alternatives. Quick buttons make it more casual, more formal, shorter or longer.
Its Spices feature can add an example, a counterpoint or a stronger closing line when a paragraph feels thin.
Key features:
- Rewrite with Casual, Formal, Shorten and Expand options for any sentence
- Spices to explain a point, add emphasis, give an example or continue your thought
- A summarizer for documents, web pages and YouTube videos
- Works in Chrome and Edge, Google Docs, Gmail, Microsoft Word, LinkedIn and on iOS
Pricing: Free tier with 10 rewrites and AI suggestions per day. Paid plans start at around $5 to $7/mo billed yearly. The Unlimited plan is around $10/mo month to month.
Best for: Professionals writing emails, posts and reports who want natural-sounding phrasing rather than heavy rewrites.
Limitations: It works best one sentence at a time, so rewriting a long document is slow. Its writing help is English only. There is no built-in plagiarism checker.
3. Grammarly: Best all-in-one
What it does well. Grammarly puts grammar fixes, tone suggestions and paraphrasing where you already write. Its Paraphraser agent can rework a whole document. It uses six preset styles (Humanize, Academic, Professional, Streamlined, Creative and Simple) or a custom voice you describe.
Grammarly's parent company now goes by the name Superhuman. The Grammarly app and plans carry on as before.
Key features:
- Six preset paraphrasing styles plus custom tone and style directions
- Full-sentence rewrites and tone adjustments on paid plans
- Plagiarism detection, AI-text detection and a Citation Finder that supports APA, MLA and Chicago
- Browser extensions for Chrome, Edge, Safari and Firefox, desktop apps and Grammarly Docs
Pricing: Free tier with a web paraphrasing tool that allows a limited number of suggestions per day, plus 100 AI prompts a month. Pro is around $12/mo billed yearly. It costs a lot more if you pay month to month.
Best for: Writers who want one subscription for grammar, rewriting, plagiarism checks and citation help.
Limitations: Paraphrasing is one feature among many, so you get fewer fine rewrite controls than QuillBot offers. The monthly price is steep without yearly billing. The free plan does not include full-sentence rewrites.
4. DeepL Write: Best for multiple languages
What it does well. DeepL Write comes from the team behind DeepL Translator. It is strong at making text sound fluent and natural in more than one language.
You can click any word for alternatives or rephrase a single sentence. That keeps you in charge of every change.
Paid users can also choose writing styles (Business, Academic, Simple and Casual) and tones (Friendly, Diplomatic, Confident and Enthusiastic). DeepL says paid users' texts are not used to train its AI models.
Key features:
- One-click word and sentence alternatives, plus grammar, spelling and punctuation fixes
- Styles and tones to match different readers
- Support for English, German, French, Spanish, Italian, Portuguese, Japanese, Korean, Chinese and a growing list of other languages
- Desktop app, browser extension and Microsoft Word integration, with business plans covering Google Workspace and Microsoft 365
Pricing: Free tier for basic corrections and rewrites. Paid access to the full Write feature set starts at around $9 to $11/mo billed yearly. DeepL also sells Write as an add-on or inside its higher business plans.
Best for: Non-native English writers, multilingual teams and companies that care about how their text data is handled.
Limitations: It is built to polish rather than heavily rewrite. So it lacks the range of modes a dedicated paraphraser gives you. There is no plagiarism checker, and most style and tone controls sit on paid plans.
5. Rytr: Best budget option
What it does well. Rytr is a low-cost AI writer that includes rewriting tools alongside its content templates. You can rephrase, expand, shorten or improve any selected text. You can choose from more than 20 preset tones.
The paid plans offer unlimited generation. That makes it a cheap way to rework many short pieces like product blurbs, emails and social captions.
Key features:
- Rewording, text expander, sentence shortener and "improve" commands inside the editor
- 20+ preset tones, plus custom tones that copy your brand voice on paid plans
- 40+ use cases and templates for emails, ads, product descriptions and more
- Built-in plagiarism checks on paid plans and a Chrome extension
Pricing: Free tier with 10,000 characters a month. The Unlimited plan is around $9/mo month to month and a bit less billed yearly. Premium costs more and adds extra languages and tones.
Best for: Freelancers and small businesses on a tight budget who need to rewrite short marketing copy.
Limitations: Reviewers report that rephrased or shortened text can come back awkward or almost unchanged. Quality drops on long pieces. The free character cap runs out fast, and the full language list is reserved for Premium.
6. Paraphraser.io: Best free-first tool
What it does well. Paraphraser.io has one of the most generous free tiers on this list, with up to 600 words per session. Five modes are free (Word Changer, Fluency, Standard, Formal and Smooth). That covers most simple rewording jobs.
Key features:
- Paid modes such as Creative, Academic, Shorten, Expand, Professional and Custom
- 20+ languages, including Spanish, French, German, Turkish and Japanese
- File upload so you can paraphrase a document without copying and pasting
- Plagiarism checker, grammar checker and summarizer in the same dashboard
Pricing: Free tier with 600 words per session. Paid plans come in weekly, monthly and yearly options, starting at a few dollars a week. Longer terms bring the monthly cost down. The plan lineup changes often, so check the current price before you buy.
Best for: Students and casual users who want quick, free rewrites without committing to a subscription.
Limitations: Free users see ads and may have to pass a CAPTCHA. There is no browser extension or Google Docs integration. Output is fine for simple text but less polished than the top picks, so plan to edit it carefully.
How to choose the right AI paraphrasing tool
Choose based on how often you rewrite and what you write. If your goal is making stiff AI text sound more natural, see our honest review of the best AI humanizers.
Here is how the picks match common needs:
- Paraphrase most days with exact control: QuillBot Premium gives the most modes and the best value on yearly billing.
- Emails, LinkedIn posts and reports: Wordtune's sentence-level suggestions feel the most natural.
- Grammar, rewriting, plagiarism checks and citations in one tool: Grammarly Pro is worth its higher price.
- More than one language, or English is not your first language: DeepL Write is the safest choice for fluent results.
- Small budgets and short marketing copy: Rytr.
- Occasional free rewrites: Paraphraser.io.
Budget matters too. At zero cost, QuillBot's free plan is best for short passages. Paraphraser.io handles longer ones (with ads), and Wordtune covers about 10 rewrites a day.
Under about $10 a month, QuillBot on yearly billing, Wordtune and Rytr all give solid daily use. Around $12 a month gets you Grammarly's full suite. Test the free version with your own writing before you upgrade.
Whatever you choose, keep the honesty rules in mind:
- read every output to make sure the meaning did not shift;
- check any facts;
- cite every source you drew from, because rewording does not make someone else's work yours.
Do not buy a tool because it claims to bypass AI detectors. Paraphrasers do not reliably fool detection. If your school or employer bans AI-assisted writing, a paraphraser will not change that rule.
Want to polish the grammar too?
Our best AI grammar checkers guide covers tools that fix clarity, tone and mistakes.
People Also Ask
Is using an AI paraphrasing tool plagiarism?
Using the tool itself is not plagiarism, but how you use it can be. If you paraphrase someone's work and present the ideas as yours without a citation, that is plagiarism. That is true even if every word is different.
Rewording your own drafts is fine in most settings. So is rewording a source and then citing it properly. Always check your school's or employer's rules on AI writing tools as well.
Can AI paraphrasing tools bypass AI detectors?
Not reliably. Some tools offer "humanize" modes, but AI detectors change often and give different results. A rewrite that passes one checker can fail another.
No honest tool can guarantee your text will pass. If you are expected to write your own work, the safest path is to write it and use AI only where allowed.
What is the best free AI paraphrasing tool?
For short passages, QuillBot's free plan gives the best-quality rewrites. It caps each paste at 125 words and only includes two modes. Paraphraser.io allows up to 600 words per session for free but shows ads and may ask for a CAPTCHA.
Wordtune's free plan fits if you only need about 10 sentence rewrites a day. Try two of them with the same paragraph and keep the one you prefer.
Is QuillBot better than Grammarly for paraphrasing?
For paraphrasing alone, QuillBot usually wins. It offers more modes, a slider to control how much changes, and freeze words to protect key terms.
Grammarly is better if you also want grammar checks, tone suggestions, plagiarism detection and citation help in one place. QuillBot Premium also costs less than Grammarly Pro on yearly billing.
Can I use a paraphrasing tool for academic writing?
You can use it to make your own sentences clearer, but be careful. Academic modes can still change the meaning of technical terms. Check every rewrite against your source.
You must cite any idea, data or quote that came from someone else, paraphrased or not. Some schools limit or ban AI tools, so read your course policy first.
Do paraphrasing tools change the meaning of my text?
They can, especially in bolder modes like Creative or Expand. The more words a tool swaps, the higher the risk. It may change a fact, soften a claim or pick the wrong synonym for a technical term.
Lighter modes such as Fluency keep the meaning closer to your original. So do tools like DeepL Write that suggest one change at a time. Read every output before you use it.