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

How do I convert an animated GIF to MP4 or WebM?

Open AnyTool's GIF to Video, drop in an animated GIF, choose MP4 or WebM, and it encodes a video in your browser with a self-hosted ffmpeg engine — automatically padding to even dimensions so H.264 works even on odd-sized GIFs. The GIF never leaves your device, there is no CDN, and the result is far smaller than the original GIF.

  • GIF → MP4 or WebM, much smaller than the GIF
  • Auto even-dimension fix so H.264 always encodes
  • Self-hosted engine — no CDN, no upload
  • 100% in your browser — no signup, no watermark

What is

GIF to video conversion

GIF to video conversion re-encodes the frames of an animated GIF into a compressed video format (MP4 or WebM), typically producing a much smaller file than the GIF. Because H.264 requires even pixel dimensions, the converter pads odd-sized GIFs. Client-side conversion runs in the browser with no upload.

Video Tools

Related terms

animated GIFMP4WebMH.264even dimensions

How to Convert a GIF to Video

Turn an animated GIF into MP4/WebM in your browser.

15 secWeb browser
  1. 1

    Add a GIF

    Drop in an animated GIF — it stays on your device.

  2. 2

    Pick a format

    Choose MP4 or WebM.

  3. 3

    Export

    Convert and download — nothing is uploaded.

Result: An MP4 or WebM video

Frequently Asked Questions

MP4/WebM are dramatically smaller than the same animation as a GIF and play more smoothly.

A multi-megabyte GIF often becomes a few hundred kilobytes as MP4.

No — the conversion happens entirely in your browser.

The GIF never leaves your device and there is no size cap or signup.

Yes — the tool pads to even dimensions automatically so H.264 always encodes.

That avoids the common "height/width not divisible by 2" failure.

Detailed Explanation

Methodology

How GIF to Video Works

AnyTool converts an animated GIF to a video in the browser with a self-hosted ffmpeg engine (no CDN). The GIF is decoded and re-encoded to MP4 (H.264, yuv420p, +faststart) or WebM (VP8). A scale filter rounds the dimensions down to the nearest even number — trunc(iw/2)*2 by trunc(ih/2)*2 — because H.264 requires even width and height and GIFs are frequently odd-sized; without it the encode would fail. There is no audio. The result is read back as a video blob and is typically far smaller than the source GIF.

  • Runs client-side — the GIF is never uploaded
  • Self-hosted ffmpeg core — no CDN
  • MP4 (H.264) or WebM (VP8) output, no audio
  • Automatic even-dimension scaling for H.264
  • Output much smaller than the source GIF
  • No backend, no signup, no watermark
Privacy & Security

Privacy vs Upload-based Converters

Most GIF-to-video sites upload your file. AnyTool converts locally with a bundled engine, so the GIF never leaves your browser, there is no size cap or signup, and it works offline after first load — while automatically handling the odd-dimension case that trips up many encoders.

GIF → video: AnyTool vs typical tools
CapabilityAnyToolTypical tools
Data handlingIn your browserOften uploaded
Odd-size GIFsAuto-fixedOften fails
TargetsMP4 + WebMVaries
Size capNoneOften capped
CostFree, no signupFree/limited

AnyTool is a privacy-first client-side GIF→video converter — the GIF is encoded locally and never uploaded.