About Astrilio
Astrilio is a free tools and information website for Canadian and US landlords, tenants, and real estate investors. We believe everyone deserves access to accurate, jurisdiction-aware property math — without paying for a lawyer or accountant just to understand the numbers.
What we build
Free calculators (mortgage, cap rate, land transfer tax, rent increase legality, CMHC, cash flow, IRR, and 60+ more), jurisdiction-aware rules for all 64 Canadian provinces/territories and US states, and educational guides written from primary government sources.
What we are not
We are not lawyers or accountants, and nothing on this site is legal, tax, or financial advice. We are information aggregators who link directly to official sources. Always consult a qualified professional before making major decisions.
About Cosyslabs
Astrilio is a product of Cosyslabs. We build tools that help people manage the complexity of property ownership and tenancy.
Questions or feedback? Email us at support.cosyslabs@gmail.com.
Part of the Cosyslabs Family
Astrilio is one of several free tools built by Cosyslabs. Our sister tools cover cost estimation, unit conversion, PDF workflows, and developer utilities.
- roughestimator.comQuick rough cost estimates for construction and renovation projects
- unitconvertall.comComprehensive unit and measurement converters
- pdfconvertall.comPDF conversion and manipulation tools
- devtoolzy.comDeveloper utilities and productivity tools for engineers
- routinetoolkit.comProductivity and routine planning tools
- castfleet.comFleet management tools by Cosyslabs
Security & Privacy
Astrilio serves no ads, collects no personal data without consent, and uses no third-party trackers except opt-in analytics. All calculations run locally in your browser.
- A+Security headers grade: A+ on SecurityHeaders.com
- ›Responsible Disclosure Policy — report security issues to the address in security.txt
- ›Privacy Policy — GDPR/CCPA — how we handle any data you provide