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Looking for the best free HTML CSS Animated Backgrounds for your website?
In this article, we have listed the 22 best free HTML and CSS Animated Backgrounds that you can easily use in 2025.
Moreover, these CSS code examples help you to design your website stand out from the crowd. So, lets dive into the list.
Best CSS Animated Backgrounds for Free Download:
1. CSS only Pattern Animation
CSS only Pattern Animation
Made By: Temani Afif
2. CSS Linear-Gradient Animations
CSS Linear-Gradient Animations
Made By: Ryan Mulligan
3. Animated Ripples Background
Animated Ripples Background
Made By: Vaibhav Arora
4. Pure CSS Twinkling Stars Background
Pure CSS Twinkling Stars Background
Made By: Anastasia Goodwin
5. Background Animation
Background Animation
Made By: Bjorn
Also, you can check: 22 Best Free CSS Thumbnails.
6. Pattern Animation (Infinite)
Pattern Animation (Infinite)
Made By: Adam Abundis
7. Pure CSS Particle Animation
Pure CSS Particle Animation
Made By: Takeshi Kano
8. Color Drops
Color Drops
Made By: Nate Wiley
9. Animated CSS Mask-Image Gradient
Animated CSS Mask-Image Gradient
Made By: Chris Neale
10. CSS Fireflies
CSS Fireflies
Made By: Mike Golus
Also, you can check: 16 Best Free CSS Speech Bubbles.
11. Pure CSS Animated Background
Pure CSS Animated Background
Made By: Mohammad Abdul Mohaiman
12. October Falling Leaves CSS Animation
October Falling Leaves CSS Animation
Made By: Casthra Demosthene
13. Shooting Star
Shooting Star
Made By: alphardex
14. Infinite SVG Triangle Fusion
Infinite SVG Triangle Fusion
Made By: Rob DiMarzo
15. Bubble Float
Bubble Float
Made By: alphardex
Also, you can check: 15 Best Free CSS Paper Effects.
16. Background
Background
Made By: Chandan Choudhary
17. Cool Mountain Background Animations
Cool Mountain Background With Animations – Slightly Responsive
Made By: Igor Milenkovic
18. Sépion CSS Background Animation
Sépion CSS Background Animation
Made By: Sépion
19. Only CSS: Warning
Only CSS: Warning
Made By: Yusuke Nakaya
20. CSS Background Effect
CSS Background Effect
Made By: Osorina Irina
Also, you can check: 21 Best Free CSS Magazine Layouts.
21. Sliding Diagonals Background Effect
Sliding Diagonals Background Effect
Made By: Chris Smith
22. Pure CSS Infinite Background Animation
Pure CSS Infinite Background Animation
Made By: kootoopas
