Lottie has become the standard format for web animations. Here are the 10 best free tools for working with Lottie files — ranked by usefulness for developers. 1. IconKing — Free Lottie Preview, Editor & Converter iconking.net | Free | No login required IconKing is the most complete free browser-based Lottie toolkit. In one place you can: Preview .json and .lottie animations before downloading Edit colors and layers directly in the browser Convert between formats: Lottie → GIF, MP4, WebM, WebP, APNG, SVG, .lottie Browse 700+ free animations Download instantly — no account needed Best for: Developers who want to grab, tweak, and drop in a Lottie without leaving the browser. 2. LottieFiles — The Largest Animation Library lottiefiles.com | Free (with paid tier) The original Lottie community platform. Thousands of free animations, plus tools like the Lottie Editor, Figma plugin, and an After Effects plugin. Requires an account for most features.…