1. Who and what
Voynich for Windows and Mac (“Voynich”) is made by Kerem Ates (“the maker”, “I”). You can reach me at clite.ka@gmail.com. By installing or using Voynich you accept these terms. If you do not accept them, please do not use Voynich, and uninstall it.
2. What you may do
You may download, install and use Voynich on your own computers, for yourself, for free, for study, for work or for anything else that is lawful. You do not need an account, and you do not need to tell me.
If a school, a company or another group would like to use Voynich for many people, please write to me first.
3. What you may not do
- Sell Voynich, or put it up for download somewhere else under another name. Linking to the official download page is fine.
- Take it apart to read or change its code, or change it and hand out the result, except where the law gives you that right anyway.
- Remove the name of the program or of the maker from it.
- Use it to break the law or to harm anyone.
- Send or ask for files in a study circle that you may not share: what members send each other goes directly between their own computers, never through me, and is their own act.
Voynich is free to download and use. It is not open source, and these terms do not give you its source code. Voynich, its text and its pictures are © 2026 Kerem Ates. These terms give you the rights written here, and all other rights are kept.
4. Your data is yours
What you write and log in Voynich is stored in a file on your computer. I do not receive it, I cannot see it, and I do not own it. Voynich only contacts the services described in the privacy part of the manual (and in Settings, Privacy inside the program), and only when you use them: book search, an online AI service you set up yourself, and update checks that you ask for or turn on.
Making copies is your job. Voynich saves copies of your data by itself and lets you restore and export them, but those copies live on the same computer as your data. Now and then, copy them somewhere else.
5. Other services
Voynich can use other companies’ services if you choose to: Open Library, Crossref, Google Books, ISBNdb, Ollama, or an online AI service. Those services are not mine. Their own terms and privacy rules apply to what you send them.
6. No guarantee
Voynich is provided “as it is”. I work to make it reliable and I test it, but I cannot promise that it has no mistakes, that it will suit what you need, or that you will never lose data. As far as the law allows, I give no guarantee of any kind.
7. Limit of responsibility
As far as the law allows, I am not responsible for losses caused by using Voynich or by not being able to use it, including lost or damaged data, lost time, or anything that follows from them. Nothing in these terms limits a responsibility that the law does not allow to be limited.
8. Updates and changes
I may release new versions, change how Voynich works, or stop making it. Voynich never installs an update unless you press Update now or turn on “Install updates by itself”, and you can stay on the version you have. I may change these terms for new versions of Voynich. The terms that came with your version stay yours for that version.
9. Stopping
You can stop at any time by uninstalling Voynich. On Windows, use Windows Settings, Apps; uninstalling asks whether to delete your data too, and the default is to keep it. On a Mac, drag Voynich from your Applications folder to the Trash; your data stays until you delete the folder Voynich keeps it in.
10. This website, and writing to me
This website is kept on GitHub Pages, so GitHub, like any web host, may record visits under its own privacy statement. I add no analytics, cookies or rooms of my own, and the pages load nothing from anywhere else.
If you email me, I receive your address and what you write, and I use them only to answer you. If you open an issue on GitHub, it is public. In both cases please do not send private data. If you attach your log file, read it first, because it can contain pieces of what you were saving.
11. Law, and the rest
These terms follow the law of the Republic of Türkiye. If you live somewhere else, and the law where you live gives you rights that a contract cannot take away, those rights are not taken away by these terms. If part of these terms cannot be applied where you live, the rest still applies.