Free Loading Animations for Web Apps — Lottie, GIF, and SVG Spinners (2025)
Loading states are often overlooked in UX, but a good spinner makes wait times feel intentional. A new curated list of free loading animations for web apps in 2025 organizes options by format, with Lottie as the gold standard due to small file sizes (5-30KB), resolution independence, and smooth performance. IconKing offers 500+ free Lottie animations including loading spinners, progress indicators, and transition animations, downloadable as JSON without an account. Developers can preview files at iconking.net/preview and customize colors to match their brand using the in-browser editor at iconking.net/editor. The article includes a React code snippet using lottie-web to integrate a Lottie loader, demonstrating how to load an animation from a JSON file. This resource saves developers time and effort in creating custom loading animations, improving app polish with minimal effort.
Free, customizable Lottie spinners let developers improve UX without design resources.