About Traitso
A free Human Design calculator with plain-English explanations — and the method behind it.
What Traitso is
Traitso is a free Human Design chart calculator with plain-English explanations and optional personal PDF readings. We built it for people who've seen Human Design on Threads, Instagram or YouTube and want to understand their own chart without the jargon — in about a minute, without signing up.
How your chart is calculated
Planet positions come from the Swiss Ephemeris (Moshier model), the same astronomical library most professional astrology and Human Design software uses. Your birth time is converted to universal time with the historical time-zone rules of your birthplace, including daylight saving time.
Your Personality is calculated for the moment of birth; your Design for the moment the Sun was exactly 88° of arc earlier — roughly three months before birth. Gates and lines follow the standard Human Design wheel, which places Gate 41 at 2° Aquarius. From the 26 activations we derive defined channels and centers, type, authority, profile, definition and incarnation cross with the standard rules.
Where our texts come from
All descriptions on this site and in our readings are written by the Traitso team, based on the published Human Design system originated by Ra Uru Hu. Traitso is independent and not affiliated with Jovian Archive.
Human Design is a symbolic system for self-reflection, not a science, and we present it that way. Nothing here replaces medical, psychological, legal or financial advice.
Our statistics
The percentages on our guide pages come from one million birth charts we calculated ourselves, with the method published on the statistics page. You're welcome to cite them with a link.