PureConverter

Convert MP4 to WEBP

Convert MP4 files to WEBP locally, completely free and with maximum privacy.

Drag and drop your files here

or click to browse local files (large files supported, limited only by browser RAM)

Upload Files

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How to convert MP4 to WEBP

  1. Drop your .mp4 files above, or click Upload Files. You can add many files at once.
  2. WEBP is already selected as the output. Open the settings (gear icon) to fine-tune the result.
  3. Click Convert All. FFmpeg runs inside your browser through WebAssembly; nothing is uploaded.
  4. Download your .webp files as soon as each one finishes.

What to know about MP4 to WEBP conversion

  • Frames are sampled at up to 20 FPS and encoded with WebP compression to keep the file small.
  • Short clips work best: animated images grow quickly with duration and resolution.

MP4 vs WEBP

MP4 (MPEG-4 Part 14): A widely compatible digital multimedia container format, most commonly used to store video and audio.

WEBP (Web Picture Format): A modern image format by Google offering superior lossless and lossy compression for web images.

Conversion options

  • Resolution and frame rate (5–20 FPS)
  • Playback speed (0.5× to 2×)

Frequently asked questions

Is it safe to convert MP4 to WEBP here?

Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.

Is there a file size limit?

There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.

Can I convert several MP4 files at once?

Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.

Related conversions

Convert MP4 to other formats

Convert other formats to WEBP

See every MP4 converter and WEBP converter, or browse the full converter directory.