Ludwig

Ludwig is an AI writing assistant built for anyone who wants to write better English. It combines a contextual search engine — which shows how words and phrases are actually used in millions of published texts — with AI-powered editing tools. You can rewrite sentences, check grammar, translate text, detect AI-generated content, and even chat with your own documents. The interface is simple: open a document, click any sentence, and get suggestions you can preview and approve before applying. No automatic replacements, no black-box changes. You stay in control.

What makes Ludwig stand out is its Contextual Search feature, which has been around since 2015. Instead of just guessing what sounds right, you see real examples from academic papers, books, and trusted publications. The tool also offers separate modes for long-form writing (like dissertations) and quick edits (like emails). You can upload PDFs and spreadsheets, then ask Ludwig questions about their content. The AI detector helps verify originality — useful for academic integrity checks. Ludwig runs in the browser, but there's also a desktop app that works with Word, Slack, Gmail, and other tools.

This tool is especially useful for students writing research papers, researchers preparing manuscripts, and professionals who need to polish emails or reports. Translators and non-native English speakers will appreciate the real-world examples that clarify usage. Ludwig is bootstrapped, EU-based, and emphasizes human oversight over automation. It's a practical writing partner that helps you learn as you write, rather than just generating text for you.