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
15 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 | Pro | 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 | Pro | 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?
What rewrite modes are available?
Can I lock specific words so the AI does not change them?
Does it preserve citations and Markdown formatting?
Will the output bypass AI detectors?
Can I train the rewriter on my voice?
Does it handle long documents?
What languages does it work in?
Is my text private?
How is this different from QuillBot or Wordtune?
Built by Molixa
Molixa builds 50+ free AI tools. No signup. No credit card on the free tier. Try our other writing tools:
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.
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AI Text Rewriter vs paid alternatives
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