Free ToolUtilities

Check if a WebP is animated

Drop in a WebP file to read its RIFF chunks and WebP animation markers. The checker reports animation status, frame count, WebP canvas size, first-frame bounds, file size, alpha flag, RIFF size integrity, and common metadata flags without uploading your image.

Use this tool free

Browser tool

Animated WebP checker

Runs locally in your browser. The selected image is not uploaded by this tool.

JPEG, PNG, and WebP are supported by default. Specialized converters restrict the file picker to their required input format.

Choose an image to start.

How to use

Upload WebP

Choose a .webp file from your device.

Read the report

See whether animation markers are present and review frame count and file properties.

Decide next step

Use the result to verify ad creatives, site assets, or conversion output before publishing.

Features

Animation detection

Reads VP8X animation flags and ANMF frame chunks to tell static and animated WebP files apart.

WebP structure report

Shows file size, MIME type, VP8X canvas dimensions, first animated-frame bounds, transparency flag, frame count, RIFF size check, and chunk summary.

Private local processing

The file is inspected with browser File APIs only. It is never uploaded or sent to a server.

After this task

After this free tool, open Ai Enhance for the next AI editing workflow.

Continue with Ai Enhance

Specifications

Input	WebP (.webp)
Detection	RIFF/WebP VP8X and ANMF chunk parsing
Output	Animation status, frame count, canvas dimensions, first-frame bounds, alpha, RIFF integrity, and metadata flags
Processing	Client-side only

Related Magic Eraser Tools

Ai Enhance

Common questions

How does it detect animation?

Animated WebP files use a VP8X animation flag and ANMF frame chunks. The checker parses those markers directly from the file bytes.

Does it extract frames?

No. This lightweight checker only detects animation and reports basic properties.

Is my file uploaded?

No. The file stays in your browser and is inspected locally.

Need to optimize WebP assets?

Use Magic Eraser tools to prepare clean images before converting or publishing WebP graphics.

Try it free

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