DefinedSelf
Your Human Design chart, free — and honest about the limits
16 followers
Your Human Design chart, free — and honest about the limits
16 followers
A free Human Design chart computed from your exact birth moment. No account, no paywall. The calculation is real astronomy, verified 624/624 against an independent ephemeris. The interpretation is a lens, not a verdict, and the site says so plainly.
The exact birth time requirement was a nice touch, and seeing the source code reference the Swiss Ephemeris gave me confidence in the numbers. Nice that the interpretation copy is upfront about being a lens rather than a verdict.
@vic_crofts Thank you, and you've put your finger on the right thing, though the mechanism sits one layer back from where it looks.
The chart you get is computed by astronomy-engine, running in your browser. The Swiss Ephemeris connection is real, but it's the independent oracle the engine is validated against — a 24-chart battery spanning 1940–2025 where all 624 activations have to match exactly, including the design sky taken 88° of solar arc before birth. So it isn't that the Swiss Ephemeris draws your chart; it's that your chart isn't allowed to disagree with it.
One correction in fairness: the repo is private, so whatever you were reading wasn't our source; I'd genuinely like to know what it was.
If checkability is the part you liked, definedself.com/data has the engine's own measurements with their methods and limits attached.