Free browser tool
JSON to Lottie Converter
Inspect and normalize a Lottie-compatible JSON file in your browser, then download a clean copy.
Choose a file to begin.
How to use this Lottie JSON converter
Choose a JSON file, let the browser process it, then preview and download the Lottie JSON result. There is no account step and no server upload in this workflow.
Lottie files describe animated layers and timing in JSON. For specification-level validation, compare the result with the Lottie Animation Format documentation.
Practical notes
- • This tool validates and formats JSON; it does not invent missing animation layers.
- • Keep image assets alongside the JSON when the animation references them.
- • Use the inspector to review dimensions and timing.
Frequently asked questions
Can I use this JSON to Lottie JSON converter without uploading a file?
Yes. The selected file is processed in your browser and is not sent to a Mascofast upload endpoint.
What does this json to lottie converter change?
It reads the JSON input and creates a Lottie JSON result. The original remains unchanged, so you can retry with different source settings if needed.
How do I check the converted Lottie JSON file?
Preview the result here, then open it in the browser, editor, app, or game where it will be used. Codec support, transparency, timing, and embedded assets can vary by runtime.
Need a mascot animation after conversion? Explore the Mascofast tools collection.