Your English writing platform I'm Ludwig AI, and I can do it all: research, writing, editing, and more! Your text it's too long. Sign up to Ludwig to rewrite longer texts in our super cool Editor Used and loved by millions of Why Ludwig Rewrite Not just one AI suggestion Multiple options, instant clarity Most paraphrasers give you one rewrite and hope it's right. Ludwig provides multiple AI-generated alternatives for every sentence—compare options side-by-side and choose the one that perfectly captures your intended meaning. Formal, neutral, or casual—you decide Control tone and style Select the tone that fits your purpose: academic paper, business email, or casual blog post. Get multiple options tailored to your chosen register, all maintaining your original meaning. For example, if you’re inviting your colleague out for a coffee, maybe you can be a bit more casual. Start in any language, get perfect English Multilingual paraphrases Are you writing in English? We got you covered! Are you writing in a different language? Most likely, we got you covered too. In fact, our paraphraser works in 50+ languages. How to use Ludwig Rewrite Paste your text Enter up to 500 characters: Paste the sentence or paragraph you want to improve. Select your desired tone (formal, neutral, casual) and click "Rewrite". Get multiple options Receive multiple rewriting options with explanations of what changed and why. Each alternative maintains your core meaning while adjusting clarity, tone, or structure. Choose the best version Compare the options and select the one that best expresses your intended meaning. Copy it into your document or use it as inspiration for further refinement. Native desktop power, universal integration Get the Ludwig experience without switching tabs, by downloading the desktop app. It works perfectly with all your favorite writing apps, too! What is a neural paraphraser? A neural paraphraser is an AI model trained so that, given a textual input provided by the user, the result is its paraphrase— meaning a text that, while maximizing its formal transformation from a terminological, grammatical, and structural point of view, minimizes its semantic transformation, i.e. says the same with different words. Why you should go Ludwig Premium Limited number of rewrites For occasional usage Limited number of tones Only the most frequent cases Unlimited* number of rewrite requests Perfect if you're working on a document Maximum number of rewrite results Multiple examples means more inspiration All available tones

Always find the right tone Start your 3-days free trial *Unlimited access is subject to abuse guardrails. Learn more about Ludwig Premium Trusted by 2 million users worldwide Ludwig is by far the best website to check your language to find examples in prominent papers. I am a language teacher and an author, and with the help of Ludwig, I can ensure what I'm teaching is authentic and, more importantly, reliable! I have been very pleased with Ludwig.guru application from the start, it definitely helped me both in academic and professional environments. I would absolutely recommend Ludwig.guru to anyone who wants to achieve that next level of writing style, seek to improve one's writing skills and/or enhance one's writing ability. The app service is practical and very intuitive. It has greatly helped me during the writing of my scientific articles and even long my phD thesis. Thanks to Ludwig, I fixed some style mistakes, and it provided me with several good suggestions. I recommend it! Read all reviews on Trustpilot Frequently Asked Questions How does Ludwig Rewrite work? Ludwig Rewrite uses advanced AI language models to analyze your text and generate multiple alternative versions. For each rewrite, the AI considers your selected tone (formal, neutral, casual), maintains your core meaning, and provides explanations of what changed and why. You get instant access to several options and can choose the one that best fits your needs. What makes Ludwig Rewrite different from other paraphrasing tools? Most paraphrasers give you one AI suggestion with no alternatives. Ludwig provides multiple rewriting options for every text, each with clear explanations of what changed. You can compare versions side-by-side and choose the one that best matches your intended meaning and tone—instead of accepting a single AI output without options. Can I control the tone of my rewrites? Yes. Select from formal, neutral, or casual tones before rewriting. The AI adapts vocabulary, sentence structure, and style to match your chosen register—whether you're writing an academic paper, business email, or casual blog post. How is this different from using ChatGPT or Claude to rewrite? ChatGPT and Claude can rewrite text, but they typically give you one version at a time. Ludwig Rewrite provides multiple alternatives instantly, optimized for your chosen tone and purpose. You can compare options side-by-side, see explanations for each change, and select the best version—rather than generating rewrites one by one in a chat interface. What's the character limit for rewrites? Free users can rewrite up to 500 characters per query. Premium users get up to 2,000 characters per rewrite—perfect for full paragraphs or longer sections. For documents longer than 2,000 characters, use Ludwig Editor which handles complete papers and reports. Does Rewrite help avoid plagiarism? Ludwig Rewrite helps you express ideas in your own words while maintaining your original meaning. However, it's not primarily a plagiarism avoidance tool—it's a writing improvement tool. If you're paraphrasing source material, you should still cite your sources appropriately. Use our AI Detector to verify your text doesn't resemble AI-generated content. Can I use Rewrite for academic writing? Absolutely. Many PhD students and researchers use Ludwig Rewrite to improve clarity while maintaining academic tone. The formality controls help you maintain appropriate register for scholarly writing, and having multiple rewriting options lets you choose the version that best expresses complex academic concepts. How does the Desktop App work? Install the Ludwig Desktop App and use keyboard shortcuts to rewrite text from any application—Word, Google Docs, email clients, or web browsers. No need to copy-paste into a separate tool. Select your text, press the shortcut, choose your preferred rewrite option, and it replaces the original directly in your document. Is my text data kept private? Yes. Ludwig follows European data protection standards with servers in Italy, Germany, and France. Your texts are processed to provide rewrites but are never stored permanently, sold to third parties, or used for advertising. We maintain strict data sovereignty and privacy for all users. Can I rewrite text in other languages? You can input text in 100+ languages and receive English rewrites with multiple phrasing options. This is particularly useful for non-native English speakers who want natural, professional English output—not just literal translations from generic tools. What does "Unlimited" usage mean? Premium users can use Ludwig AI Chat without limitations. There are some guardrails in place to prevent abuses and to allow all users access the service effectively. Usage must adhere to our Terms of Use, which prohibits, among other things: • Abusive usage, such as automatically or programmatically extracting data. • Sharing your account credentials or making your account available to anyone else. • Reselling access or using Ludwig Premium to power third-party services. To prevent misuse, we have guardrails in place and are always working to improve our systems. This may occasionally involve a temporary restriction on your usage. We will inform you when this happens, and if you think this might be a mistake, please don't hesitate to reach out to our support team at support@ludwig.guru from the support button in the menu. If policy-violating behavior is not found, your access will be restored.