What Quillin’ does with your data
Quillin’ is a bring-your-own-key (BYOK) extension. This means:
- Your API keys are stored locally on your device using Chrome's built-in storage. They are never transmitted to us or any third party other than the AI provider you've chosen.
- Text you submit for grammar checking, rewriting, or translation is sent directly from your browser to your chosen AI provider (Anthropic, OpenAI, Google, xAI, Mistral, Groq, or a local Ollama instance). It does not pass through any Quillin’ server because there isn't one.
- Your standing instructions, rewrite styles, and settings are stored in your browser. If you have Chrome sync turned on, Chrome copies those settings across your devices through your Google account (never your API keys, which stay on the one device you entered them on). Either way, we cannot access any of it.
What we collect
The extension: nothing. The Quillin’ extension has no backend, no analytics, and no tracking. We do not collect, store, or transmit anything you type, check, or rewrite. There is no Quillin’ server between your browser and your AI provider. One caveat: the extension's setup tour plays a demo video hosted on quillin.uk, which is an ordinary web request to our site, same as visiting the website.
The website: almost nothing. quillin.uk has no analytics, no ads, and no tracking cookies. Nearly everything we receive is what you choose to send us through the contact form, described below. The one exception is the bot check that protects that form, which sees your IP address and some browser signals; that is described below too.
The contact form
If you write to us through the contact form, we receive the name, email address, topic, and message you enter. Your submission is delivered to our inbox as an email: it passes through a Cloudflare Worker we run and Resend, our email delivery provider, on its way to our mailbox. The Worker does not store your message; Resend processes it to deliver the email and retains delivery logs under its own privacy policy.
If you attach a screenshot to a bug report or feature idea, it is emailed as an attachment. The Worker does not store it or place it in object storage. It lives in the destination mailbox and in Resend's systems as part of delivery.
We use Cloudflare Turnstile to protect the contact form from bots. Turnstile processes your IP address and browser signals to provide that protection.
- We use what you send us to reply to you, and for nothing else.
- If you ask to be notified about a future version (a subscription option, or the Mac app), we keep your email address solely to send you that one heads-up when the time comes. No newsletter, no marketing list. The signup may also ask a few optional questions about pricing; answering is optional, and skipping them changes nothing. Answers travel the same path as a contact-form message (our Cloudflare Worker, then Resend, then our mailbox) and are kept alongside your signup. Ask us to delete your signup and answers at any time.
- If you send an idea or use case for our Ideas page, we may publish the idea itself on the site, as described in the Submissions section of our Terms of Use. We will not publish your name or contact details without asking you first.
- We never sell your details, and we never share them with anyone beyond the service providers named here that deliver your message and keep the form free of bots.
- Everything above lives in our mailbox like ordinary email; we keep it only as long as it is useful for replying to you or sending the one heads-up you asked for.
- Want your message or email address deleted? Ask through the same form or by mail, and we will delete it.
Website hosting & fonts
quillin.uk is a static website hosted on Cloudflare. Like any host, Cloudflare processes visitors' IP addresses and standard request logs to serve and secure the site. We do not add any analytics or tracking on top.
Our typefaces are self-hosted on quillin.uk. Your browser does not contact Google Fonts or any other third-party font service when you visit this site.
Our support page links to Buy Me a Coffee. If you decide to buy us one, that happens on their site, under their own privacy policy and terms.
Third-party AI providers
When you use Quillin’, your text is sent to whichever AI provider you have configured. Each provider has their own privacy policy:
Your rights
Ask us to see, correct, or delete anything we hold about you (realistically: contact-form messages and notify-me signups sitting in our mailbox) and we will, within a month. Reach us through the contact form or the mail address below.
If you are in the UK or EU, these are your legal rights under data-protection law, and you can also complain to your local data-protection authority; in the UK that is the ICO. Our service providers (Cloudflare, Resend, and our mailbox provider) process data in the United States.
Changes to this policy
If this policy changes materially, we will update the date at the top of this page.
Contact
Questions? Reach us through our contact page or by mail:
LJY Studios LLC
1401 21st Street, STE R
Sacramento, CA 95811
United States