Who we are
Quarkdown is developed by Giorgio Garofalo, who is the data controller for the services described here. You can reach us about anything in this policy at info@quarkdown.com.
What this policy covers
This policy covers the website at quarkdown.com and Quarkdown Studio at studio.quarkdown.com.
The open-source Quarkdown compiler and the VS Code extension run on your own computer. They do not send us your documents or any usage data. The exception is a package you include from a registry, which is downloaded from the registry's host (such as GitHub) under that host's own terms.
This website
The website is a static site hosted on GitHub Pages. It sets no cookies. Like any web server, GitHub may log your IP address and browser details when you visit; see GitHub's privacy statement.
We measure visits with Cloudflare Web Analytics, which is cookieless and does not fingerprint or track you across sites. It records aggregate page views, referrers, browser and country, and does not store your IP address. See Cloudflare's privacy policy.
If you email us, we keep your message and address to reply to you and, for education discount requests, to check your eligibility.
What Quarkdown Studio collects
- Account data: your email address, a password hash if you sign up with a password, and, if you sign in with a third-party account, the name and profile picture its provider shares. We never receive your password for that account.
- Your content: the projects, files, images, fonts and other assets you create or upload, and the exports you produce from them.
- Preferences: editor settings and your personal spell-check dictionary. Some workspace settings, such as pane layout and open tabs, stay in your browser's local storage and never reach us.
- Billing data: if you subscribe to a paid plan, Stripe processes your payment. We receive your plan, subscription status and a Stripe customer ID, never your full card details.
- Activity and technical data: records of your exports (time, format, size, duration), sign-ins, project and file activity, and server logs that include IP addresses and error details.
- Connected apps: if you connect an AI agent (such as Claude or Cursor) to your projects, we store the authorization you granted and the client's name.
Spell check and live preview run entirely in your browser. Your text is not sent to a third party to check spelling.
How we use it
We use your data only to:
- provide Quarkdown Studio: store, compile and export your projects, and sync them between your tabs and devices;
- manage your account, plan and subscription, and enforce plan limits;
- send you account emails, such as sign-up confirmation and password reset;
- keep the service secure and reliable, and investigate failures and abuse;
- understand how the product is used, in aggregate, so we can improve it.
We do not sell your personal data, and we do not use your projects to train AI models.
If you are in the European Economic Area or the United Kingdom, the legal bases are: the performance of our contract with you (running the service and your subscription), our legitimate interests (security, reliability and product improvement), your consent (optional cookies), and legal obligations (tax and accounting records).
Cookies and similar technologies
Quarkdown Studio uses strictly necessary cookies to keep you signed in. These cannot be turned off.
Optional analytics and marketing cookies are loaded through Google Tag Manager only after you accept them in the cookie banner. Until then, Google's consent signals stay denied. You can change your choice at any time from Settings → Account in Quarkdown Studio.
Who we share it with
We share personal data only with the service providers we need to run the website and Quarkdown Studio, each bound by its own data protection terms:
- Supabase: database, authentication and file storage, hosted in the European Union (Frankfurt).
- Stripe: payments, invoices and subscription management.
- Cloudflare: cookieless visit statistics for this website.
- Resend: delivery of account emails.
- Sign-in providers: authentication, only if you choose to sign in with a third-party account.
- Google: analytics and marketing tags, only with your consent.
- Telegram: we receive operational alerts (such as failures and new sign-ups) through a Telegram bot. These alerts may include your email address.
When you connect an AI agent to Quarkdown Studio, that agent reads and edits your projects on your behalf, and what it reads is handled by the agent's provider under their own policy. You can disconnect it at any time from Settings → Apps.
We may also disclose data when the law requires it, or to protect our rights and the safety of our users.
International transfers
Some of the providers above, such as Stripe, Cloudflare, Google and Telegram, may process data outside the European Economic Area. Where they do, the transfer relies on safeguards such as the European Commission's Standard Contractual Clauses or an adequacy decision, as offered by each provider.
How long we keep it
- Account data, projects and files: until you delete them or your account.
- Compiled exports on plans that keep them: 20 days, then deleted automatically.
- Billing records: as long as tax and accounting law requires.
- Server logs and operational alerts: only as long as needed to run and debug the service.
Deleting a project removes its files and stored exports. To delete your account and everything in it, email us at info@quarkdown.com.
Your rights
Depending on where you live, you can ask us to access, correct, delete or export your personal data, to restrict or object to how we process it, and to withdraw any consent you have given. Email us at info@quarkdown.com and we will respond within 30 days. You can also lodge a complaint with your local data protection authority.
Security
Data travels over encrypted connections, access to your projects is restricted to your account, and exports run in isolated sandboxes. No system is perfectly secure, but we work to protect your data and will notify you as the law requires if a breach affects it.
Children
Quarkdown Studio is not intended for children under 13, and we do not knowingly collect their data. If you are under 18, or under the age of digital consent in your country, you need permission from a parent or guardian to use it, and a paid plan must be purchased by an adult. If you believe a child under 13 has given us personal data, contact us atinfo@quarkdown.com and we will delete it.
Changes to this policy
We may update this policy as Quarkdown evolves. The date at the top shows when it last changed, and we will let you know of significant changes by email or in Quarkdown Studio.