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AI Text Rewriter

Paraphrase in 10 modes with diff view, freeze words, and brand voice training.

0 / 5000 characters

10+Rewrite Modes

1kWords / Free Request

30+Languages

FreeNo Signup

What is an AI Rewriter?

An AI rewriter takes any text and rephrases it in a different tone, length, or reading level while keeping the meaning intact. Paste a draft, pick a mode like Formal or Simple, and get a clean rewrite in seconds with a side-by-side diff so you can see exactly what changed.

Most paraphrasers cap free use at 125 words and lock the useful modes behind paywalls. This one gives you 1,000 words per request, 10 modes, brand voice training, freeze-word protection, and a live AI-detection score, all on the free tier.

How It Works

Paste your text

Drop in any sentence, paragraph, or 1,000-word draft. Markdown, citations, and inline formatting are preserved.

Pick a mode

Standard, Fluency, Formal, Academic, Simple, Creative, Shorten, Expand, Persuasive, or your own custom voice.

Review the diff

Side-by-side view shows what changed. Hover any change to see the reason. Accept or reject per-sentence.

Features

10 rewrite modes

Standard, Fluency, Formal, Academic, Simple, Creative, Shorten, Expand, Persuasive, and Custom.

Freeze brand and technical terms

Lock specific words so the rewriter never replaces them. Critical for brand consistency and technical writing.

Citation and Markdown safe

Citations like [Smith 2024], footnotes, links, bold, italic, code blocks, and lists survive the rewrite.

Diff view with rationale

Hover any change to see why. 'Replaced utilize with use to reduce formality.' Builds trust and teaches the user.

Reading-level targeting

Rewrite for an 8th grader, a CEO, or a non-native English reader at CEFR B1 level.

Brand voice profiles

Paste 3 to 5 paragraphs of your past writing and the rewriter mimics that voice across new content.

Live AI-detection score

See per-sentence AI-detection probability while you rewrite. Know which lines still read as AI.

30+ languages

Rewrite in English, Spanish, French, German, Portuguese, Italian, Dutch, and 25+ more.

Why Use This Rewriter?

1,000 words per request, free

Most paraphrasers cap free at 125 words. We give you 8x that so you can rewrite a full draft in one shot.

Learn while you write

The diff view shows WHY each change improves the text. You get better at writing as you use it.

Privacy by default

We never store your text. We never use it to train AI. Sessions expire on close.

Built for daily use

50 rewrites per day on free, no surprise charges, no hidden caps. Cancel any time on premium.

Who Is This For?

Students

Rewrite essays in academic tone. Preserve citations. Hit the right reading level for your professor.

Authors and bloggers

Tighten prose, vary sentence rhythm, save your voice across long drafts. Markdown survives so blog publishing stays clean.

Marketers

Rewrite copy in 5 tones at once and pick what tests best. Keep brand terms locked across every version.

ESL writers

Make English text sound natural without losing your meaning. Reading-level targeting helps you hit your audience.

Customer support

Rewrite a frustrated reply in friendly tone before sending. Save time, save customers.

Researchers

Paraphrase academic prose while keeping in-text citations and footnotes intact.

Real Use Cases

1You wrote a draft email and need to soften the tone before sending it to a client.
2Your blog post sounds robotic and you want it to read like a human conversation.
3Your professor flagged your essay as too informal and you need an academic tone overnight.
4You wrote a product description three times for three audiences and want to do it once.
5Your cover letter needs five variants for five different job types in one afternoon.
6You have a 2,000-word article that needs to be cut to 800 words without losing meaning.
7You need to rewrite your LinkedIn bio in three vibes (formal, casual, contrarian) and pick the best one.

How Molixa Compares

Plenty of rewriters exist. Here is how ours stacks up against QuillBot, Wordtune, and Spinbot.

Feature	Molixa	QuillBot	Wordtune	Spinbot
Free word limit per request	1,000 words	125 words	10 rewrites/day	125 words
Rewrite modes	10 + custom	9	4 + Spices	2
Freeze words / glossary	Yes	Premium	Manual only	No
Citation preservation	Yes	No	No	No
Markdown preservation	Yes	No	No	No
Diff view with reasoning	Yes	Highlights	Alternatives	No
Brand voice training	Premium	No	No	No
Live AI-detection score	Yes	Separate	No	No
Reading-level targeting	Yes	No	No	No

How the Rewriter Works

Mode-shaped prompting

Each rewrite mode is a different prompt template tuned for that voice. Formal mode prioritizes precision and avoids contractions. Simple mode caps reading level at grade 6 and removes jargon. Creative mode adds metaphors and varies sentence rhythm.

Freeze words and citations

Before the rewrite, we tag protected tokens (your frozen terms, citations, footnotes, code blocks). The model sees these as locked and rewrites around them. Markdown structure is reconstructed in the output.

Diff with reasoning

After the rewrite, we run a diff that compares each sentence against its original and asks the AI for a one-sentence reason per change. You see what changed AND why. Better than a black box.

Frequently Asked Questions

Is the AI rewriter free?

Yes. 1,000-word free tier per request, 50 rewrites per day, no signup. Most competitors cap free use at 125 words. We pick a different fight on word count.

What rewrite modes are available?

Standard, Fluency, Formal, Academic, Simple, Creative, Shorten, Expand, and Persuasive. Plus a custom mode where you tell the AI exactly the tone you want (for example, 'sound like a friendly product manager').

Can I lock specific words so the AI does not change them?

Yes. Paste your text, select brand names, technical terms, or proper nouns, and click Freeze. The rewriter preserves frozen words exactly while rephrasing everything else.

Does it preserve citations and Markdown formatting?

Yes. Citations like [Smith 2024], footnotes, links, bold and italic formatting, code blocks, and lists are all preserved through the rewrite. Drop in a blog post or academic paragraph and the structure survives.

Will the output bypass AI detectors?

Honest answer: no AI rewriter reliably bypasses modern detectors. The AI-detector-safe mode shows a live detection probability score per sentence so you know which lines still read as AI. Use it to manually rewrite the riskiest parts.

Can I train the rewriter on my voice?

Yes. Paste 3 to 5 paragraphs of your past writing in the brand voice editor and the rewriter mimics that register. Saved profiles persist for premium users.

Does it handle long documents?

Free tier handles up to 1,000 words per request. Paste a longer document and we split it into chunks while preserving section headings. Premium unlocks single 5,000-word requests for full blog posts and chapters.

What languages does it work in?

Strongest in English. Solid in Spanish, French, German, Portuguese, Italian, and Dutch. Works in 30+ more with output quality varying by language.

Is my text private?

Yes. We do not store your input or output. Nothing is used to train AI. Sessions expire on close. For sensitive work, the in-browser ghost mode runs the rewrite without sending text to our servers (premium feature).

How is this different from QuillBot or Wordtune?

Three things: a 1,000-word free tier (vs their 125 words), citation and Markdown preservation (they do not), and a side-by-side diff view that explains why each change was made so you learn from each rewrite.

Built by Molixa

Molixa builds $50+ free AI tools. No signup. No credit card on the free tier. Try our other writing tools:

Grammar Checker AI Translator PDF Summarizer AI Detector

Built and reviewed bySaqib Zahoor, WeboTech Studio

Last updated: May 14, 2026

The AI Text Rewriter page is built, reviewed, and maintained by the Molixa team. We use the tool we ship and update the docs when the behavior changes.