Natal charts, notes and astrological studies
All your astrological work in one place
Cast the chart, write about one specific position, and compare. Astromicelio anchors every note to the planet, sign, house or aspect that prompted it, and hands it back when that same configuration turns up in another chart.
About Astromicelio
Astromicelio is a web app for studying natal charts with a method. It does not interpret for you or generate automatic readings: it computes the chart, lets you write about one specific position — this planet, in this house, in this aspect — and keeps that note anchored there, ready to hand back when the same configuration turns up in another chart.
It is built for people who accumulate material over years: practising astrologers, study groups and students. Hence identities, núcleos, studies shared with explicit permissions, family trees carrying each member’s chart, and a change history you can undo.
The model is simple and has no small print: a free account you can already do real work with, and a subscription that lifts the limits. No ads, no data selling. Only what is already built and in use appears on this page.
What you can do
Six pieces that fit together: the chart, what you write about it, what you compare it with, who it comes from, when things happened, and who you work on it with.
- Natal charts
- An interactive chart with rings for transits, secondary progressions, solar arc, draconic and solar return.
- Anchored notes
- Write in Markdown against one specific planet, sign, house or aspect, and group notes into núcleos.
- Studies and synastries
- Gather charts into a study case and compare two of them with their composite, their Davison and the aspect table.
- Astro-genealogy
- Connect parents, children and partners and grow the tree, with each member’s chart and computed relationships.
- Timelines
- Record the events of a life with their dates and overlay historical events to read them against the transits.
- Sharing and reports
- Share a study with read or edit rights, comment on it, check the change history and print the report.
Pricing
The whole application is free, with no usage limits. The Pro plan, coming soon, adds room for your images and a say in what gets built next.
Free
The whole application: charts, notes, studies, family and events, with no cap on identities.
- Unlimited identities
- Unlimited shared studies
- Unlimited timelines
- PDF export of reports
- Bulk import from CSV or JSON
- 100 MB for images in notes and identities
- Printable reports from the browser
Pro
For anyone who keeps photos alongside their notes and wants to support the project.
This plan is not available yet. It will be soon.
- Everything in the free plan
- 5 GB for images in notes and identities
- A vote on which features get built next
- You support an independent, ad-free project
Included in both plans
- Interactive natal chart calculation and display
- Rings for transits, secondary progressions, solar arc, draconic chart and solar return
- Markdown notes anchored to every position in the chart
- Panel of planetary positions, houses and aspects
- Transit panel, with notes anchored to a given date
- Núcleos: group notes by facets of an identity
- Reusable note templates
- Synastries with composite chart, Davison chart and an aspect table with affinity index
- Pattern heatmap: which planets, signs and houses your notes concentrate on
- Identities with birth data and geolocated birth city
- Organisation with folders, favourites and categories
- Study cases for comparative analysis of several charts
- Share studies with read or edit permission
- Comments and notifications on shared studies
- Change history, including undo for a deleted note
- Life-event timeline with categories and dates
- Global and historical events overlaid on the timeline
- Astro-genealogy: family tree carrying each member’s chart
- Automatic computation of family relationships (siblings, grandparents, uncles, cousins)
- Full-text search across all your notes (Ctrl+K)
- Identity, study and synastry reports, ready to print
- Links and media resources attached to notes, events and identities
- Optional cache so what you already loaded stays visible offline
- Bilingual app: Spanish and English
Start with your own chart
Create a free account, enter your birth data and have the chart on screen in a minute. No card required.
Create a free account