timeless-jewels 
A simple timeless jewel calculator with a skill tree view
Hosted Version: https://adc000.github.io/timeless-jewels
Uses data extracted with https://github.com/Vilsol/go-pob-data
Updates to new leagues
Whenever a new league is coming, the passive tree might get updated. But it is not guaranteed to contain correct data until a game download is available.
Specifically, this project depends on the following data tables:
- Alternate Passive Additions
- Alternate Passive Skills
- Passive Skills
- Stats
- Translations