Lottie JSON Player & Validator
Validate and inspect Lottie animation JSON - version, dimensions, framerate, layer tree, and asset count. Works entirely offline in your browser.
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What is Lottie JSON Player & Validator?
The Lottie JSON Player & Validator parses Lottie animation JSON and validates its structure: required fields, layer tree with typed names, metadata dashboard, and asset count - all computed locally without any dependency.
Key Benefits
- Catch missing fields before importing into your app
- Layer tree shows structure without opening After Effects
- Metadata dashboard gives instant animation overview
- Works offline with no external dependencies
Common Use Cases
- •Validating Lottie exports before shipping to production
- •Debugging animation structure when playback fails
- •Documenting layer organization for design handoff
- •Checking animation duration and complexity at a glance
- •Auditing asset counts in large Lottie files
Validate a Lottie Animation
- Paste the Lottie JSON: Paste the exported Lottie animation JSON from After Effects, LottieFiles, or any editor.
- Check validation results: The tool validates required fields (v, fr, ip, op, w, h, layers) and flags any missing keys.
- Inspect the layer tree: Each layer is listed with its name and type (Shape, Text, Solid, Image, Null, Pre-comp).
- Review metadata: Dimensions, framerate, duration, and asset count give you a quick overview of the animation.
Key Features
- Validates required Lottie fields: v, fr, ip, op, w, h, layers
- Layer tree with names and human-readable type names
- Metadata dashboard: dimensions, FPS, duration, layers, assets
- Parse errors with specific messages for quick debugging
- No lottie-web dependency - pure JSON analysis
- Works offline - animation data stays on your device