Ertutur: know what to call each other
In Karo custom, what you call someone — mama, bibi, turang, senina — depends on merga, bere-bere and family ties. Ertutur helps you find it: for people you have just met, and for your whole family.
ertutur.karo-online.comMerga Tarigan adalah pihak ibu-mu.
How it works
Sign up
Create an account with your email, or join as a guest through an invitation from your family.
Add your family
Father, mother, siblings, children — one by one, up to your grandparents. You only do it once.
Find your tutur
Enter the merga and bere-bere of someone you have just met, and Ertutur shows the right form of address.
What you can do
Family tree
List, chart and full tree of your family, including marriages and photos.
Ertutur with new people
Merga and bere-bere are enough to know how you are related: kalimbubu, senina or anak beru.
Rakut Sitelu
Your kalimbubu, sukut and anak beru on one screen — handy before a traditional ceremony.
Together with your family
Invite relatives to view the family tree or help fill it in.
On your phone like an app
Ertutur runs in the browser and can be added to your home screen without an app store.
Three languages
Indonesian, German and English. Traditional terms stay in Karo.
Questions and answers
Does Ertutur cost anything?
No. Ertutur is free to use and has no ads.
Who can see my family tree?
Only you and the people you invite. The family tree is visible only after logging in and does not appear in search engines.
Do I need to install an app?
No. Ertutur runs in the browser on phones and computers. If you like, add it to your home screen so it opens like an app.
What if the tutur is different in my village?
Tutur can differ between regions. Send a suggestion through the app so the rules can be checked and improved.
Why does Ertutur have its own address?
Ertutur is part of karo-online.com but runs separately at ertutur.karo-online.com — with its own login and privacy policy. That keeps your family data apart from this public website.