Moon Phase Software

Moon tools and calendars

Export and integrate
Observe the Moon
Keep it on your device
Personal dates and calendars
Explore lunar geometry

Moon phase image generator

First Quarter · 48.46% illuminated · 18 October 2026 at 12:00 UTC.

Default: UTC. Choose a named zone for local dates.
First Quarter, 48.5% illuminated

Download SVG

The phase diagrams are original artwork you may reuse with attribution to Moon Phase Software. They show the illuminated shape rather than surface relief. South view rotates the global phase by180°; the additional rotation is measured clockwise.

Generate an original Moon phase diagram for a date, with size, rotation, hemisphere and transparent or solid background, then save SVG or PNG.