A paraphrasing tool that shows exactly what it changed
This paraphrasing tool rewrites a sentence, a paragraph or a whole page in different words, then puts your original and the new version side by side with every changed word highlighted. Pick one of seven modes — Standard, Fluent, Formal, Simple, Creative, Shorten or Expand — list any terms that must stay exactly as they are, and press Paraphrase.
The rewriting is done by an AI model that runs on your own device. Desktop Chrome can use its built-in model; in other browsers the page can download IBM’s open Granite 4.0 model once, after asking you, and run it locally. Your text is not uploaded to us or to anyone else.
Small on-device models are useful but imperfect: they can drop a detail or ignore part of an instruction, and results vary between runs. Read the result before you use it — the comparison and the term checks make that quick.
How to paraphrase text
- Paste your text into Text to paraphrase, or open a .txt, .md, .docx or .html file — it is read in your browser.
- Choose a Mode. The line under the buttons says what that mode asks the model to do.
- Optionally type Words to keep unchanged, separated by commas — names, product terms, legal or technical words.
- Press Paraphrase. If a model must be downloaded first, the page tells you its size and waits for your OK. The result appears as it is written; Stop ends it at once.
- Compare the two columns. Green marks words that are new or moved; red, crossed-out marks words from your original that are gone. Press ↻ after any sentence to rewrite only that sentence.
- Copy the paraphrase, download it as .txt, or press Use as new input to work on it again in another mode.
Paraphrasing Tool features
Seven modes
Each mode is a short, explicit instruction to the model — from a straight reword to a formal, simpler, shorter or longer version.
Word-level comparison
A longest-common-subsequence diff marks every added, moved and removed word, paragraph by paragraph, and reports the share of words that are new.
Protected terms, verified
Terms you list are sent with the instruction and then counted in the result; any that changed are flagged in red, so a lost product name cannot slip through.
Redo one sentence
Not happy with one line? Rewrite just that sentence, with its paragraph as context, while the rest stays as it is.
Long texts in parts
Text is sent paragraph by paragraph (long paragraphs are split between sentences), so a slow on-device model still shows progress and can be stopped at any point.
The seven modes compared
| Mode | What the model is asked to do | Good for |
|---|---|---|
| Standard | Same meaning, different words and sentence structure | Rewording a passage you wrote earlier |
| Fluent | Smooth out awkward phrasing and grammar, keep wording that works | Drafts, notes, text written in a hurry |
| Formal | Professional style, no contractions or slang | Emails to clients, reports, applications |
| Simple | Short sentences and everyday words | Instructions, notices, readers new to the topic |
| Creative | Fresh, vivid wording; the same facts | Product descriptions, social posts, titles |
| Shorten | About a third shorter, main points kept | Summaries for busy readers, word limits |
| Expand | About a third longer, more explanation, no new facts | Notes that need a little more context |
Paraphrasing, citing and plagiarism
Changing the words does not change whose idea it is. If you paraphrase someone else’s writing — a book, an article, a website, a classmate’s notes — you still need to name the source, in whatever citation style your course or publisher uses. A paraphrase that copies the structure of the original sentence by sentence can still count as plagiarism even when most words are different.
This page does not check for plagiarism, and we make no claim that its output is “plagiarism-free” or original; the percentage of new words only measures how much the wording moved. Students should follow their school’s or university’s rules on AI tools, which often require you to say when and how you used one, and writers should check their publisher’s policy.
How the checks work
The comparison splits both texts into words and punctuation and finds the longest common sequence between them; everything outside that sequence is marked as new (in the paraphrase) or removed (in the original). The same method is used by the Diff Checker, applied there to lines. Protected terms are matched as whole words with exact capitalisation, counting each occurrence, so “Wi-Fi” written as “wireless internet” is reported as changed.
On a laptop processor the open 350M model wrote about five tokens (three or four words) a second in our tests, so a 150-word paragraph takes around half a minute; Chrome’s built-in model and WebGPU are much faster. On WebGPU devices the page suggests the larger Granite 4.0 1B model, which follows instructions more closely. For one sentence with labelled alternatives, try the Sentence Rewriter; for the tone of a message, the Tone Changer.
Paraphrasing Tool FAQ
Is this paraphrasing tool free?
Yes — no sign-up and no word limit set by us. The model runs on your own hardware, so the only practical limit is how long you are willing to wait on a slower device.
Is my text uploaded anywhere?
No. Your browser’s built-in AI and the open Granite model both run on your device. Only the model files are downloaded — by Chrome itself, or from Hugging Face after you agree — and your text never leaves the browser.
Will the paraphrase pass a plagiarism checker?
We don’t promise that, and you shouldn’t rely on it. Rewording a source without citing it is still plagiarism. Use the paraphrase to understand or improve your own writing, and cite the ideas you borrowed.
Why did a word I asked to keep change?
Small models don’t always follow instructions. That is why kept terms are counted after writing: a red badge means at least one occurrence is missing. Press ↻ next to the sentence to rewrite it again, or edit it by hand.
Why does it ask to download a model?
Your browser has no built-in AI the page can use, so it offers IBM’s Granite 4.0 (Apache-2.0 licence): 338–553 MB for the 350M model, or 1.2 GB for the 1B model on WebGPU, downloaded once and kept by your browser.
Which languages can it paraphrase?
English works best. Chrome’s built-in AI handles English, Spanish and Japanese; Granite 4.0 was trained mainly on English plus about a dozen other languages, including German, French, Spanish and Japanese, where quality is lower.