Is Natal Chart Studio free to use?

Yes, Natal Chart Studio is completely free to use with no account, subscription, or hidden fees required. Astralium is committed to making spiritual tools accessible to everyone. You can use Natal Chart Studio as many times as you like, any day of the week. The only thing you need is a modern browser. All 255+ tools on Astralium follow the same principle: free, private, and always available.

How does Natal Chart Studio work?

Natal Chart Studio runs entirely in your browser using algorithms built on established spiritual traditions — including the Rider-Waite-Smith tarot system, Pythagorean numerology, and Western tropical astrology. When you interact with the tool, a seeded random process combines the current moment with your input to generate a result. No data is sent to any server and nothing is stored. All calculations happen locally on your device, so your readings remain completely private. You can refresh or repeat a session at any time without losing your privacy.

Can I use Natal Chart Studio on my phone?

Yes, Natal Chart Studio works on smartphones, tablets, and desktop computers. The interface is fully responsive and adapts to any screen size. On mobile, touch gestures are supported for an intuitive experience. You can also install Astralium as a Progressive Web App (PWA) on your home screen for quick access to Natal Chart Studio and all other tools — no app store required. The PWA works offline for many features, so you can consult Natal Chart Studio even without an internet connection.

How accurate is Natal Chart Studio?

Natal Chart Studio draws on centuries of accumulated wisdom from spiritual traditions — not on scientific prediction algorithms. The Rider-Waite-Smith tarot tradition, Pythagorean numerology, and Western astrology are symbolic frameworks designed to support self-reflection, not to forecast external events with certainty. Results from Natal Chart Studio are best understood as mirrors for your own inner state, inviting you to explore patterns, possibilities, and meanings that resonate with your current situation. Many users find them valuable for clarity and perspective, while maintaining personal discernment about any guidance they receive.

Is my data private when I use Natal Chart Studio?

Absolutely. Natal Chart Studio processes everything in your browser. No personal data — not your birth date, your questions, or your results — is ever sent to a server. There is no account system, no tracking of individual readings, and no way for anyone (including Astralium) to see what you do with Natal Chart Studio. Your spiritual practice remains yours alone.

Where are my saved charts stored?

Only in your browser’s localStorage. They never reach a server. Clearing your browser data deletes them.

How many charts can I save?

Up to 10. Older charts are not deleted automatically — you remove them with the × button on each chip.

How accurate are the planetary positions?

They use a Meeus-style ephemeris with mean orbital elements. Accuracy is roughly 1 degree for inner planets and 2 degrees for outer planets — fine for sign placement, but not for navigation or scientific work.

Why is the ascendant optional?

The ascendant depends on the geographic location of birth. Without a latitude we cannot compute it, but the rest of the chart still works.

Can I compare two of my charts?

Yes. Pick the active chart, then select another from the “Compare with another chart” dropdown to see all major aspects between the two.

Yes, completely free, with no sign-up.

Natal Chart Studio

All data stays in this browser only. Nothing is uploaded.

Saved charts

No charts yet — add your first one above.

For entertainment and self-reflection purposes only. Results are generated by digital algorithms and are not predictions of the future. Processed entirely on your device. No data is sent to servers. How it works →

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