PARANAVI®

Open-source licenses

PARANAVI® Lucky uses the open-source software below to support accurate, reproducible calculations.

Localized descriptions are provided for convenience. The original English license text prevails.

Open-source software in use

manseryeok

Used for calendar conversion and Four Pillars calculations in Saju.

MIT
Version
2.0.0
Copyright notice
Copyright (c) 2025 Yoohyojun
View source repository

celestine

Used to calculate planets, houses, and major aspects in Western astrology.

MIT
Version
0.2.1
Copyright notice
Copyright (c) 2025 Anonyfox
View source repository

iztro

Used to calculate the twelve palaces and major stars in Zi Wei Dou Shu.

MIT
Version
2.6.1
Copyright notice
Copyright (c) 2023 All Contributors
View source repository

@prisri/jyotish

Used to calculate the foundational Vedic astrology chart.

ISC
Version
1.1.12
Copyright notice
Priyansh Srivastava
View source repository

astronomy-engine

Used for astronomical positions required by the Vedic astrology calculation.

MIT
Version
2.1.19
Copyright notice
Copyright (c) 2019-2025 Don Cross
View source repository

Original license text

MIT License
MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
ISC License
ISC License

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.

Last reviewed: September 26, 2026