RAstro is a free Vedic astrology and panchanga resource designed to make traditional time-keeping and sacred knowledge accessible for cities around the world. Its daily almanac uses NASA JPL DE440 ephemeris data to provide panchanga details, including tithi, nakshatra, yoga and karana, alongside festival information and auspicious or inauspicious time windows. Visitors can explore a Hindu calendar, upcoming and annual festivals, and current sky conditions with planetary positions, lunar phases, lagna information, retrograde tracking and eclipse updates.

The site also offers tools for generating Vedic birth charts and comparing two charts through 36-guna Ashtakuta compatibility, with Maṅgala Doṣa detection. Its scripture library contains 66 sacred texts, presented in IAST transliteration and Devanagari, including the Bhagavad Gita, Vishnu Sahasranam and Hanuman Chalisa. Additional resources include reference guides to nakshatras, tithis, yogas and grahas, a glossary, quizzes, and interactive journeys through the Ramayana and Mahabharata. RAstro emphasizes free access, sidereal calculations using Lahiri ayanamsa, and festival guidance informed by traditional sources.