What is q2kindle
q2kindle is a web application that lets you save articles from the web, bundle them into an ebook (EPUB format), and deliver them to your Amazon Kindle device via email. We are committed to protecting your privacy and being transparent about how we handle your data.
Information We Collect
We collect the minimum data needed to provide the service:
- Email address — used for account authentication via passwordless magic links. This is the only personal information required to create an account.
- Kindle email address — the Amazon Kindle email you provide in your settings so we can deliver ebooks to your device.
- Article URLs and content — when you add an article, we fetch and extract the readable content (title, author, text) for EPUB generation. This content is stored temporarily while the article is in your queue.
- Send history — a log of when deliveries were made, including article count and delivery status, so you can review past sends.
- Delivery preferences — your chosen schedule, timezone, and EPUB formatting options.
How We Use Your Information
Your data is used solely to provide the q2kindle service:
- Authentication — your email address is used to send magic link sign-in emails. We never store passwords.
- Article extraction — we fetch article URLs you provide to extract readable content for your ebook.
- EPUB generation — extracted articles are bundled into an EPUB ebook formatted for Kindle reading.
- Email delivery — the EPUB is sent as an email attachment to your Kindle email address. Each email goes only to your own device — we never send marketing, promotional, or bulk emails.
Email Practices
We take email delivery seriously and maintain strict practices:
- Emails are sent only to your own Kindle email address that you explicitly provide.
- You must manually add our sender address (kindle@q2kindle.com) to your Amazon approved senders list before delivery can work.
- We do not send marketing, advertising, or promotional emails.
- Each email contains a single EPUB attachment — your bundled articles.
- Users are limited to 10 deliveries per day to prevent abuse.
Third-Party Services
We use the following trusted third-party services to operate q2kindle:
- Supabase — authentication and database hosting (stores your account, articles, and settings).
- Brevo — email delivery service for sending EPUBs to your Kindle.
- Resend — delivers authentication emails (magic link sign-in).
- Netlify — web application hosting.
We do not sell, share, or provide your personal data to any third party for advertising or marketing purposes.
Data Storage & Retention
- All data is stored securely in a Supabase-hosted PostgreSQL database with row-level security (RLS) policies — each user can only access their own data.
- Article content is stored while in your queue and marked as sent after delivery. You can delete articles from your queue at any time.
- Send history is retained so you can review past deliveries.
- If you wish to delete your account and all associated data, please contact us.
Security
- Passwordless authentication — we use magic links sent to your email. No passwords are ever stored or transmitted.
- HTTPS everywhere — all connections to q2kindle.com are encrypted via TLS/SSL.
- No sensitive credentials stored — we do not store any email passwords, API keys, or financial information from users.
- Row-level security — database access is scoped per user via Supabase RLS policies.
Contact
If you have questions about this privacy policy or how your data is handled, open an issue on GitHub.