Convert PNG to WebP

Convert PNG to WebP for 25-35% smaller files at equivalent quality. WebP supports transparency just like PNG and is supported by every modern browser since 2020. Free, in-browser.

Output format

WebP

82%

01 — Overview

Why convert PNG to WebP

WebP files are typically much smaller than PNG at equivalent quality — usually the main reason to make this conversion. Smaller files mean faster page loads, smaller email attachments, and less storage.

02 — Comparison

PNG vs WebP

AttributePNGWebP
CompressionLosslessLossy or lossless
TransparencyYesYes
AnimationNoYes
Typical file sizeVery largeMedium
Browser supportUniversally supported in every browser since the late 1990s.Supported by every evergreen browser since 2020 (Chrome, Firefox, Safari 14+, Edge). Older systems and some editing tools still struggle.

03 — How to

Three steps

  1. 01

    Drop your PNG files

    Drag one or more PNG files onto the dropzone above, or click to browse. Files stay on your device — nothing uploads.

  2. 02

    Convert in your browser

    convert.now decodes each PNG and re-encodes it as WebP via WebAssembly. The conversion runs in a Web Worker so the page stays responsive.

  3. 03

    Download the result

    Download a single WebP file or, for batch conversions, a zip of all converted files. Filenames preserve the originals.

04 — Pillars

Why convert.now

  • Private

    Files stay in your browser. No upload step. Nothing for anyone to see.

  • Fast

    No queue, no upload wait. Conversion starts the moment you drop a file.

  • Free

    No ads. No file-count limit. No sign-up wall. Just the converter.

05 — FAQ

Frequently asked

No. The conversion from PNG to WebP runs entirely in your browser using WebAssembly. Files never leave your device. Open DevTools' Network tab if you'd like to verify — there are no network requests with file contents.

06 — More

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