What this site is, and how it works

What you get

Enter a date, time and place of birth and the calculator draws your Rashi chart and all sixteen classical divisional charts (Navamsa, Dasamsa, and the rest), the complete Vimshottari Dasha timeline down to the Pratyantardasha level, automatic detection of about twenty classical yoga combinations, and the full Ashtakvarga bindu table. All of it is free, with no account required.

A second tab does palmistry. Upload or take a photo of your open palm and the page finds the hand, straightens it, traces the heart, head, life and fate lines, and measures each one against the width of your own palm — then gives you the reading that traditional palmistry attaches to those shapes — in both traditions. Each line is read twice: once in the Western manner, and once as Samudrika Shastra names it, since the Sanskrit sources call these lines the āyu, dravya, gotra and ūrdhva rekhā and do not map them onto the Western names the way most readers assume. Like the chart, it runs entirely in your browser, and the photo is discarded as soon as the measurements are taken.

The astronomy behind it

Planetary positions are computed from JPL Keplerian orbital elements, corrected for light-travel time. The Moon uses a truncated ELP-2000 lunar theory — the same family of series used in professional ephemeris software, reduced to the terms that matter for birth-chart precision. Sidereal longitudes use the Lahiri (Chitrapaksha) ayanamsa, the standard adopted by the Government of India and most Vedic astrologers. Houses are whole-sign, following the classical Parashari method.

In testing against published astronomical reference values (Meeus's worked examples), the Moon's position matches to within a few arc-seconds and the other planets to roughly an arc-minute across the years 1800–2100. That's precise enough for accurate Lagna and Nakshatra placement in almost all cases — but it is an independent implementation, not a licensed copy of Swiss Ephemeris or any commercial engine, and it hasn't been independently audited beyond the checks described here.

What it doesn't do

• It doesn't store, transmit, or see your birth details, or your palm photo. Every calculation happens in your browser; nothing is sent to a server.
• It doesn't give predictions written by an astrologer. The yoga descriptions and chart reading are template text generated from the calculated chart positions, not a personalized reading from a human practitioner.
• The palm reading measures your hand honestly, but palmistry itself has no scientific basis for predicting events, and the length of a line says nothing about the length of a life. The measurements are real; the meanings are tradition.
• It isn't a substitute for professional advice — medical, legal, financial, or otherwise. Treat it as a starting point for your own study or reflection, not a verdict.
• It can be wrong if your inputs are wrong. An inaccurate birth time, or a daylight-saving offset you forgot to adjust for, will shift the Lagna and can change the whole reading. See the note on the calculator page about time zones.

Who built this

JyotishGen is an independent project, built to make a fast, free, ad-supported kundali tool without login walls or upsells on the basic chart. It is not affiliated with any astrology school, temple, or professional Jyotish practice, and it doesn't claim credentials it doesn't have. If you want a personalized consultation, this tool is a useful starting point to bring to one — not a replacement for it.