Convert PNG to WEBP

Convert PNG 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 PNG to WEBP

  1. Drop your .png 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. ImageMagick runs inside your browser through WebAssembly; nothing is uploaded.
  4. Download your .webp files as soon as each one finishes.

What to know about PNG to WEBP conversion

  • WEBP supports both lossy and lossless compression and typically produces smaller files than older formats at the same visual quality.
  • Transparency is preserved: WEBP supports an alpha channel just like PNG.
  • WEBP is best for fast-loading images on websites, and opens in all modern browsers and most image editors.

PNG vs WEBP

FeaturePNG (Portable Network Graphics)WEBP (Web Picture Format)
Compressionlosslesslossy or lossless
TransparencyYesYes
AnimationNoYes
Best forscreenshots, logos and graphics with sharp edges or transparencyfast-loading images on websites
Opens inevery browser, operating system and image editorall modern browsers and most image editors

PNG (Portable Network Graphics): A lossless image format supporting transparency, ideal for web graphics, screenshots, and logos.

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

Conversion options

  • Quality (1–100)
  • Resize by width, height or both (aspect ratio is preserved)
  • Filters: grayscale, sepia, blur and sharpen
  • Custom output file name

Frequently asked questions

Is it safe to convert PNG 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 PNG 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.

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