AnyTool
Your files never leave your device. All processing happens locally in your browser.

How do I convert a video to an animated WebP in my browser?

Open AnyTool's Video to WebP tool, drop in a clip, and it converts it to an animated WebP — smaller and better-looking than a GIF — with controls for fps, quality, size and loop. It runs in your browser with a self-hosted ffmpeg engine: no upload, no CDN, no watermark.

  • Video → animated WebP (smaller, better than GIF)
  • fps, quality, size and loop controls
  • Self-hosted ffmpeg engine — no CDN, no upload
  • 100% in your browser — no signup, no watermark

What is

Animated WebP

An animated WebP is a modern image format that stores a short looping animation, typically at a smaller size and higher quality than an equivalent GIF. Converting a video to animated WebP samples frames at a chosen fps and encodes them with quality, size and loop settings. Client-side conversion runs in the browser, so the file is never uploaded.

Video Tools

Related terms

WebPanimatedGIFfpsffmpeg

How to Convert a Video to Animated WebP

Make a small animated WebP from a clip in your browser.

30 secWeb browser
  1. 1

    Add a video

    Drop in a clip — it stays on your device.

  2. 2

    Set options

    Choose the fps, quality, size and loop.

  3. 3

    Export

    Convert and download the animated WebP — nothing is uploaded.

Result: An animated WebP file

Frequently Asked Questions

Animated WebP is usually smaller and looks better than a GIF at the same size.

WebP supports more colors and better compression, so the loop stays sharp while the file shrinks.

The fps, quality, output size and loop behavior.

Lowering the fps or size shrinks the file, while a higher quality keeps the animation crisp.

No — the conversion runs entirely in your browser with a self-hosted engine.

The clip never leaves your device and there is no size cap, signup or watermark.

Detailed Explanation

Methodology

How the Video to WebP Tool Works

AnyTool turns video into animated WebP entirely in the browser using a self-hosted single-threaded ffmpeg.wasm engine — the core (ffmpeg-core.js + the 32 MB wasm) is bundled from npm and served as a same-origin asset, so nothing is fetched from a CDN. A -vf chain sets the output frame rate with fps and resizes with scale (lanczos), then -c:v libwebp encodes the frames (the libwebp_anim muxer is selected automatically when there is more than one frame), with -quality, -compression_level, and -loop controlling visual quality, effort, and looping. Animated WebP is typically smaller than a GIF at equal quality because it supports lossy frames and a full color range. Single-threaded is deliberate: the multi-threaded core needs SharedArrayBuffer + cross-origin isolation (COOP/COEP), which would block cross-origin ad iframes, so it is avoided.

  • Runs client-side — the video is never uploaded
  • Self-hosted ffmpeg core (bundled) — no CDN
  • -vf fps + scale (lanczos); -c:v libwebp (libwebp_anim auto for multi-frame)
  • -quality / -compression_level / -loop controls
  • Animated WebP — usually smaller than GIF at equal quality
  • Single-threaded (keeps ads working); no backend, no cap
Privacy & Security

Privacy vs Upload-based Tools

Most online video-to-WebP tools upload your file to a server and cap the free tier or add a watermark. AnyTool encodes locally with a bundled engine, so the video never leaves your browser, there is no size limit, no watermark and no signup, and it works offline after the first load.

Video to WebP: AnyTool vs typical tools
CapabilityAnyToolTypical tools
Data handlingIn your browserOften uploaded
Engine sourceSelf-hosted (no CDN)CDN / server
Encoderlibwebp / libwebp_animVaries
Output sizeSmaller than GIF at equal qualityGIF only / larger
Watermark / capNoneCommon
CostFree, no signupFree/limited

AnyTool is a privacy-first client-side WebP encoder — encoding runs locally and nothing is uploaded.