Lottie Animation Editor[100% Private / Client-Side]
Tweak, repaint, optimize, and generate Lottie JSON vector loops client-side. Edit frame rates, colors, and canvas dimensions 100% locally.
Lottie Code Source
Click or drag Lottie JSON file
Canvas Render Output
Hardware-accelerated HTML5 Canvas — direct stream capture for video and GIF encoding.
Lottie Animation Editor & Generator Architecture
The Lottie Animation Editor & Generator is a browser-native motion graphics studio that combines JSON optimization, color repainting, and multi-format media compilation into a single client-side pipeline. The HTML5 Canvas renderer drives all export operations — from SVG frame extraction and JSON minification to MediaRecorder VP9 video stream encoding and GIF WebWorker frame packaging arrays — with zero server processing overhead.
JSON Optimization & Canvas Renderer
The forced canvas rendering mode binds the lottie-web engine to an HTMLCanvasElement target instead of SVG vector streams, enabling direct pixel-level access for media compilation. The JSON optimization minifier recursively traverses the Lottie tree, rounding floating-point spatial coordinates to 2 decimal places and stripping hidden layer metadata to reduce payload sizes by 15–40% without quality loss.
MediaRecorder APIs & VP9 Video Stream Encoders
The video export pipeline uses canvas.captureStream(fps) to hook directly into the live canvas pixel feed, then instantiates a browser-native MediaRecorder with video/webm;codecs=vp9 or VP8 fallback codec selection. The animation is programmatically reset to frame zero via goToAndStop(0), recording commences, and the recorder collects binary data chunks until the full animation duration elapses, then bundles them into a downloadable WebM or MP4 file — entirely serverless.
GIF WebWorker Frame Packaging Arrays
The animated GIF encoder loads gif.js via CDN and distributes frame encoding across dedicated WebWorker threads to prevent main-thread blocking during intensive canvas pixel-to-palette quantisation operations. The pipeline steps through animation frame indices using goToAndStop(), captures each canvas state with addFrame(), and compiles the complete LZW-compressed GIF binary inside the browser's WebWorker frame packaging arrays — delivering serverless animated GIF generation with real-time encoding progress feedback.
100% Private File Studio — All processing happens locally within your browser sandbox using WebAssembly technology. Your files never leave your device.