Privacy & terms
Your birthday itself never leaves your browser. Your name, birthday, birth time, city and name style are used only on your device to work out your Korean name and chart. We don't send your birthday, birth time, city or last name to our server, and we don't save them anywhere. To run your friend map and ranking, we save a small profile on our server: your first name, the 4 letters you picked, and a short summary of your chart (element percentages, leanings, the two characters of your birth day and your birth season), under an anonymous ID with no email or account. These numbers come from your birthday, so someone could work your birth date back out of them. Treat your friend link with the same care. You can delete it any time (section 2). If you're under 14, we don't save a profile on our server, and your map stays in this browser only. (We still count anonymous taps, with no name or ID.)
We count a few things, without names. When you open the page, start the form, see a result, save or share the card, save the slides, make a friend link, open a friend link, open a friend’s match, or tap “Count me in” on the full reading, we record that event and the time, plus three short codes: the link tag you came from (like “tt” for TikTok), whether you came through a friend link, and how many friends down the chain you are. For the full reading tap we also note which chapter. We also attach the country you connect from, as a two-letter country code only (for example US or PH). We don't store your IP address, city or region. Nothing else is attached.
1. What we collect
| What you type | First and last name, birthday, birth time, birthplace, name style. Used in your browser to make the result. Your birthday, birth time, city and last name are dropped when you close the page. Not sent, not stored. |
|---|---|
| Saved on our server (friend map) | Anonymous ID, your first name, the 4 letters you picked (or “not picked”), your born 4 letters and chart summary (element percentages, leanings, the two characters of your birth day, your birth season). When a friend makes their name from your link, each of you is added to the other's map with these same fields. Not saved: birthday, birth time, city, last name, Korean name. Kept until you delete it, or until a year passes without use. Under 14: not saved. |
| Kept in this browser only | Your Korean name, first name, the 4 letters you picked, and your chart summary (element percentages, your born-type leanings, your day and branch characters), plus the same summary for friends whose links you opened. Stored with your browser's local storage on your device, never sent to us. It lets your friend map show up when you come back. |
| Usage counts | An event name (page opened, form started, result shown, type page opened, type compared, card saved, card shared, slides saved, friend link made, friend link opened, joined a friend’s map, a friend’s match opened, ranking shared, full reading wanted) and the time, plus the short codes above. We also attach the country you connect from, as a two-letter country code only (for example US or PH). We don't store your IP address, city or region. No name, birthday, account or device ID is attached. |
| Notes you send (optional) | What you type in the “What should we add?” box at the bottom of the result and type pages (up to 500 characters), the time, and a short code for how you reached the site. Sent without your anonymous ID or any account, so we can't tell who wrote it. Kept for one year from the day we get it. To have a note deleted sooner, email us roughly when you sent it and what it said. Please don't put your name, email or phone number in it. |
| Automatic data | Like any website, our host sees your IP address, browser type and request time when the page loads. We use the IP only briefly to limit abuse of the counter, and we don't store it with the counts. |
We don't use cookies, ads or tracking pixels on this page, and we don't sell or share data.
2. Friend links and name cards
If you're under 14, or our server can't be reached, the friend link instead carries your Korean name (in Hangul), your first name, and the short chart summary above (element percentages, born-type leanings, two chart characters), so your friend can see where you land on each other's map. It doesn't carry your last name, birthday, birth time or city. That part of the link stays in the browser and isn't sent to our server, but anyone you send the link to can read it.
Circles: your friend link also carries a random circle code. Everyone who makes a name from the same link joins that circle, and circle members can see each other's first name, 4 letters and match %. Deleting your data removes you from circles too.
A short friend link (…/en/#s=…) carries only an anonymous ID. When someone opens it, our server shows them your first name and chart summary so they can see where you two land; when they make their name, you're both added to each other's map and ranking.
Deleting: tap “Clear my saved name and map” at the bottom of the Korean name page. That deletes your server profile, your map, and your copy on friends' maps, and clears this browser. You can also email us.
The name card image shows your first name, your Korean name and your core element. It's made on your device; you decide where it goes.
3. Who handles data for us
| Vercel Inc. (USA) | Hosts the page and runs the counter. Requests may be handled at a server near you. |
|---|---|
| Supabase, Inc. (USA) | Stores the usage counts, the friend-map profiles and the notes you send (above) (database in Tokyo, Japan). |
| Google LLC (USA) | Serves the fonts. Your browser sends your IP address to Google when it loads them. |
Usage counts are kept for up to one year. Hosting logs follow each provider's retention.
4. Your choices
- Usage counts and notes have no name or ID, so we can't link them back to you. Your friend-map profile can be deleted any time with “Clear my saved name and map”, or by emailing us.
- If you live in the EU, the UK or a US state with a privacy law, you have rights to ask about, correct or delete personal data. Email support@danjolabs.com and we'll reply within 30 days.
- If you're under 14, the page works but keeps your profile in your browser (see above). It isn't meant for children under 13, and we don't knowingly collect anything from them.
5. Terms in short
- It's for fun. The name is a playful suggestion, not a legal or official Korean name. Saju (the Korean birth chart) is a cultural tradition, not science, and nothing here is advice about your health, money, relationships or future.
- Real names, real people. Names come from public lists of common Korean names, so other people have the same name. We skip a short list of well-known public figures, but we can't rule out every match.
- Use it kindly. Share your own card and links. Don't use the page to make fun of people or cultures.
- Free, as is. The page is free and provided as is. We may change or stop it at any time.
- Sources. City data © GeoNames, CC BY 4.0. Hanja meanings written by us from Korea’s official name-hanja list and the Unicode Unihan database. Korean name lists from the Supreme Court of Korea's birth registration statistics, plus decade lists we put together with AI help where official data is missing (not statistics).
Changes to this page will be posted here with a new date. The Korean-language app has its own privacy policy and terms.