Galaxy Generator
Generate a swirling spiral galaxy — thousands of stars arranged along logarithmic spiral arms around a glowing core — for cosmic and sci-fi backgrounds.
About the Galaxy Generator
Generate a swirling spiral galaxy — thousands of stars arranged along logarithmic spiral arms around a glowing core — for cosmic and sci-fi backgrounds. It's well suited to desktop wallpapers, mobile wallpapers, and social media, wherever a distinctive backdrop makes a difference. Export the finished design as PNG, JPG, WEBP, SVG, or PDF, whichever suits your workflow. Choose from HD, Full HD, 2K, and 4K presets — or set a fully custom size up to 8000px per side — and download instantly, free, with no login or watermark.
Ways to Use the Galaxy Generator
Desktop wallpapers
Generate the Galaxy Generator at 4K and set it as a desktop or ultra-wide monitor wallpaper.
Mobile wallpapers
Export the Galaxy Generator at a phone-sized resolution to use as a lock screen or home screen wallpaper.
Social media
Export the Galaxy Generator as a square or vertical image for posts, stories, or profile banners.
YouTube thumbnails
Use the Galaxy Generator as an eye-catching backdrop behind thumbnail text or a face cutout.
Branding
Use the Galaxy Generator's colors and mood as a backdrop for brand moodboards or style guides.
Frequently Asked Questions
Is the Galaxy Generator free to use?
Yes. The Galaxy Generator is completely free, with no account, no sign-up, and no watermark on anything you download — for personal or commercial projects.
What file formats can I export from the Galaxy Generator?
PNG, JPG, WEBP, SVG, or PDF. PNG and WEBP support transparency, JPG is smaller but opaque, and PDF is sized to match your chosen dimensions exactly.
What resolutions does the Galaxy Generator support?
HD, Full HD, 2K, and 4K presets, plus a fully custom width and height up to 8000px per side — export re-renders at full resolution, so it stays sharp.
Can I randomize the Galaxy Generator's design?
Yes — click Randomize, or adjust the seed value, to generate a new variation instantly while keeping your color and style settings.
Can I customize the colors and density of the Galaxy Generator?
Yes — adjust the color palette and density sliders to make the Galaxy Generator sparser or denser and shift its overall palette.