Red Ink

Your AI multitool with 100+ functions and use cases that gets the most out of all your favorite LLM directly within Windows Word, Excel, Outlook and your browser – get real with AI!

How to use itGet a license

Phenomenal add-in.”

Mario Wälti, General Counsel, u-blox AG

“We think Red Ink is great! We have become big fans of the tool.”

Robert Selk, Partner, SSH Rechtsanwälte PartGmbB Selk

An essential powerful plugin for Word, not only for legal drafting (you can use any AI Model!)”

Oliver Schmidt-Prietz, Senior Legal Counsel Data Protection, CARIAD

“Thank you as well for an excellent product. I have been trying it out for a while and have been very impressed by the user-friendly design for legal work, especially compared with alternatives such as MS Copilot. The mark-up functionality in particular is a real time-saver.”

Alexander E., Senior Legal Counsel, T.

A textbook example of AI done right: born from real usage, scaled by demand, and built to live inside professionals’ workflows — not as a demo, but as infrastructure.”

Stefano Santinelli, CEO, Swisscom Directories AG

“Red Ink revolutionized my daily work as a dispute resolution specialist. It allows my team and me to analyze complex and extensive legal briefs in a very short time and to compare them with other documents in the same proceedings. This enables us to plan our further work in a targeted and efficient manner and to prioritize our tasks. Red Ink does not replace my thought process, but helps me to focus on the central issues.”

Karin Graf, Partner, VISCHER AG

“Red Ink allows me to quickly and effectively implement complex and urgent tasks. It is not just a nice-to-have; Red Ink is an essential tool for meeting today’s high client expectations, both in terms of quality and speed. It is part of my daily practice.”

Anela Lucic, Partner, VISCHER AG

“We are very pleased with Red Ink and commend you on this excellent work. We find it extremely helpful that we can (a) interact with the text in Microsoft Office products, (b) visualize the markups of prompts for review, (c) include other files via (adddoc)/(files)/{doc}, and (d) use a promptlibrary with customized prompts.”

Max Scheu, Hepp Wenger Ryffel AG

“In my profession, where precision is paramount, I use Red Ink as more than just a simple proofreader. It acts as my digital sparring partner and paralegal, allowing me to improve the quality and efficiency of my work and creating a decisive strategic advantage for my clients. I can stress-test documents and clauses, challenge my own thoughts and work, analyze a batch of documents in Excel, create corresponding timelines in seconds, and instantly rename entire folders based on document content. The power of Red Ink lies with its user – and the possibilities are unlimited.”

Lucas Sturzenegger, Associate, VISCHER AG

“Red Ink is my digital sparring partner. The ‘Discuss this’ feature helps me sharpen my arguments and gain new perspectives on complex issues. It is an invaluable asset that ultimately also benefits my clients.”

Sarah Bischof, Senior Associate, VISCHER AG

Can your AI Tool cope with Red Ink?

Can the AI solution you use for your general daily use or industry-specific applications (e.g., use in a lawfirm) cope with the features and functionality of Red Ink?

Find it out yourself by completing the feature comparison on the right. If you want to find out more about the features, consult the manuals, use “Help me, Inky” within Red Ink, or watch the videos below (they do not show all features, though).

For example, we believe that (as of our tests run on January 10, 2026), Microsoft Copilot for M365 gains about a handful of checkmarks. ChatGPT Teams even less. Yet, you can use the same large-language models these solutions use also with Red Ink.

If you believe we are wrong, let us know. 

If your AI tool really keeps up with Red Ink, we would like to know, as well.

 

Let us be the architects who build with AI, not the janitors in the structures it creates. This is why I wanted to have Red Ink.

David Rosenthal

Partner, Head Data & Privacy Team, VISCHER

Red Ink in use

Use within Word

Translate, correct, and improve text on the fly using ‘Freestyle’ with your own prompts. Have scripts check your documents and add comments in Word. Maintain a clause library, and let Red Ink create slides and podcasts for you. Redact PDFs and use a chatbot that always sees the latest version of your document for assistance, eliminating the need to copy and paste between Word and your browser. *

Demo based on Release 1.0. See below and here for other features.

 

Use within Excel

Use Red Ink to analyze and build spreadsheets, translate them, or anonymize their content. You can also have AI analyze millions of data lines, create timelines, relationship tables, and other tables from your contracts and documents, rename files, or discuss worksheet improvements with a chatbot to find information across various worksheets. And use Red Ink to fill our your Excel-based forms automatically.*

Demo based on Release 1.0. See below and here for other features.

Use within Outlook

Red Ink offers a suite of AI-powered tools to enhance your email productivity. Automatically draft email replies, even in your own writing style. Translate, improve, and correct your responses. Let the AI summarize long email chains or the messages you received during a meeting. Instantly perform OCR on screenshots, such as from documents, with a single click. You can also use your own custom prompts.*

Demo based on Release 1.0. See below and here for other features.

Use within Edge/Chrome

Have your personal chatbot directly in your browser. Access all models through a dropdown menu without needing to log in. You can also submit prompts “purely” (without a system prompt). The Edge/Chrome add-in allows you to translate web content, draft or correct text in web forms, and analyze selected text, including large PDFs.*

Use with 3rd Party Sources

Practical use case: “Verify the statements in the document with current case law” is the command the user types into to the Red Ink chatbot that sits within Word. It immediately searches for Swiss court rulings in Lexi Search and provides a detailed answer based on them. The user asks it to supplement their text in Word based on this. The chatbot adds a sentence in track changes. The model used is GPT 5.2 (with Tooling). The source is the Lexi Search Swiss court decision database service (with semantic search).* Video credit: Lexi Search

Release 1.2

Key features introduced with Release 1.2 of Red Ink, including the on-the-fly translator, tooling support in Red Ink’s various chatbots (to do own research using preconfigured sources), the ability to create editable diagrams and to compare text in Word and Outlook on-the-fly (no separate tools are needed for editing). For more, see here. *

For key features introduced in Release 1.1 see here.

 

*  Requires Microsoft Office for Windows (not MacOS) and appropriate AI models (to be obtained separately). Not all models support all features or do so equally well. Above screenrecordings run at increase speed and have been edited. You can download the documents, worksheets, etc. we used for creating the videos with our Red Ink Testing Set and try out the features and the capabilities of your preferred model.

More Feedback From Happy Users

Beats Copilot by far.

I tried to have ChatGPT create a markup. It told me it couldn’t. Then I did it with Red Ink.

Wow!

The program is brilliant! You don’t have to upload anything, but can instruct directly from Word, Excel or Outlook, and as a layman, thanks to your preset commands, you are naturally guided to what you frequently need. The ‘Quick Reference’ is also a joy.

Thanks again for this great tool, which brings me joy every day!

Red Ink, the AI tool for Microsoft Office that has significantly boosted my productivity here at VISCHER, is now available to everyone!

Wow. What Red [Ink] is capable of is really awesome. Not only in terms of textual quality, but also in terms of contextualized content.

Good that RedInk comes to the same conclusion as I did.

Very cool.

I am impressed by the latest developments at Red Ink – thank you for this and for sharing!

Red Ink, the AI tool for Microsoft Office that has significantly boosted my productivity here at VISCHER, is now available to everyone!

That rocks! [referring to the audio functions]

I think Red Ink is great. Very helpful when writing e-mails!

I already use Red Ink daily and I’m a big fan!

I used your Red Ink intensively for the first time in the last few days. To prepare a legal opinion on a license option agreement. It was enormously helpful!

We are currently creating possible logos for an event. We have worked intensively with Red Ink for this, which has worked very well.

Very cool – setting up a functioning Whisper on a PC is really tedious. [referring to the Transcriptor]