Developer Tool

Lottie Previewer

Preview Lottie animation JSON in your browser with upload, paste, and URL import options.

Input

Upload, paste, or load a URL

Choose a Lottie JSON file from your device, paste animation JSON directly, or load a remote file from a URL. The preview updates locally in your browser after validation.

Drag and drop

Drop a .json Lottie file here

Or click the button to browse your files. This works best with exported animation JSON from Lottie tools and design workflows.

Waiting for a Lottie JSON file.

Source

None

File Size

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Frame Count

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Preview

Lottie Animation

Ready

Online Lottie Viewer

Preview Lottie animation

Upload a file, paste JSON, or load a URL to render the animation here.

Add a Lottie JSON file or URL to start the preview.

Dimensions

—

Playback

Stopped

1.0x

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TL;DR

What this Lottie preview tool does

This tool renders Lottie JSON in the browser so you can preview an animation, verify timing, and inspect key metadata before you ship it. It works as an online Lottie viewer, a preview Lottie animation tool, and a practical Lottie JSON viewer for day-to-day checks.

Summary

Preview Lottie JSON without leaving your browser

Lottie animations are commonly used for lightweight motion in product interfaces, landing pages, onboarding flows, and marketing experiences. This page gives you a fast way to preview the file, check playback, and confirm the animation behaves the way you expect.

What Is A Lottie File?

A JSON-based animation format for the web

A Lottie file is a JSON document that describes an animation through vectors, layers, transforms, and timing data. It is usually exported from motion design software and rendered by a Lottie player in browsers or native apps.

Because the animation is stored as structured data, a Lottie JSON viewer can inspect the file, render the motion, and validate it without needing the original design tool.

How It Works

How the online Lottie viewer renders your file

The page reads your JSON, validates the structure, and then lazy loads the Lottie player only when a preview is needed. That keeps the initial bundle light while still giving you a full animation preview once the file is ready.

  • Upload a local Lottie JSON file or paste the raw animation JSON.
  • Load a URL if your animation is hosted remotely.
  • Use playback controls to play, pause, loop, or change speed.
  • Review file size, dimensions, and frame count when available.

How To Use It

How do you use this Lottie preview tool?

  1. 1

    Upload a .json file, paste Lottie JSON, or enter a direct URL to the animation file.

  2. 2

    Wait while the tool parses the JSON and lazy loads the Lottie renderer in your browser.

  3. 3

    Use Play, Pause, Loop, and Speed controls to inspect the animation before copying or publishing it.

Quick workflow

Upload or paste the JSON, wait for the preview to load, and then use playback controls to check motion, looping behavior, and responsiveness.

Benefits

Why Lottie animations are useful

  • Preview animations without installing a desktop app.
  • Use an online Lottie viewer for quick validation during design and development.
  • Inspect dimensions and frame counts when the JSON includes that data.
  • Keep the workflow simple with upload, paste, and URL import options.

Use Cases

Where this Lottie JSON viewer helps

Design handoff

Check exported motion assets before handing them to developers or content teams.

Product QA

Validate that the animation plays correctly, loops as expected, and uses the right dimensions.

Marketing pages

Preview motion assets for landing pages, banners, and feature highlights before release.

Asset debugging

Spot malformed JSON, missing fields, or broken URLs before they block a release.

FAQ

Common questions

These short answers are written for quick scanning and featured snippet style clarity.

What is a Lottie file?

A Lottie file is a JSON-based animation format created from design tools such as After Effects and exported for use on the web and in apps. It stores vector animation data, timing, layers, and transforms in a compact structure that can be rendered by Lottie players.

How do I preview a Lottie animation online?

Upload a .json Lottie file, paste the raw JSON into the editor, or provide a direct URL to the file. The tool loads the animation in your browser, then lets you play, pause, loop, and adjust speed without installing anything.

Is this Lottie preview tool safe to use?

Yes. The animation is parsed and rendered locally in your browser session. Uploaded files and pasted JSON are not sent to a server by this page.

What should I do if my Lottie file does not load?

Check whether the JSON is valid, whether the URL is publicly reachable, and whether the animation uses features supported by the Lottie runtime. Invalid JSON, blocked cross-origin requests, or unsupported expressions can all prevent playback.

Can I preview a Lottie animation from a URL?

Yes. Paste the direct URL to a Lottie JSON file and click Load URL. The tool fetches the file, parses the JSON, and renders the animation if the response is valid and accessible.

What metadata can this tool detect?

The preview shows file size, dimensions when width and height are available in the JSON, and frame count when the animation timing fields are present. If a field is missing, the tool displays that clearly.

What is a Lottie JSON viewer?

A Lottie JSON viewer is an online Lottie viewer that helps you inspect animation files by rendering the JSON, showing metadata, and making it easy to validate whether an animation plays correctly before you ship it.

Authority Links

References behind the tool

  • LottieFiles : Common Lottie ecosystem reference for creating and sharing animations.
  • lottie-web on GitHub : The player library used to render Lottie JSON in browsers.
  • Bodymovin : Popular export plugin used to generate Lottie JSON from After Effects.
· · Last reviewed: April 2026