Fast File Convert

PNG to WebP

PNG to WebP re-encodes graphics, screenshots and illustrations into WebP, which usually produces a much smaller file for the same visual result.

Drag & drop files here

or Browse files

Max file size: 100 MB

Processed locally in your browser. Files are cleared when you leave the page.

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Why use PNG to WebP?

Images arrive in whichever format the camera, phone or app happened to produce, and that is rarely the format you need next. Converting and resizing lets you meet an upload limit, strip a format a website refuses, keep a transparent background where it matters, or cut a photo from several megabytes down to something an email will accept — without losing the original, which stays untouched on your device.

How to use PNG to WebP

  1. 1Add your PNG files.
  2. 2Set the quality level.
  3. 3Press Convert now.
  4. 4Download the WebP images.

Features

  • Large size savings for flat graphics and screenshots.
  • Quality slider for fine control.
  • Batch conversion supported.

Supported formats

Input
PNG
Output
WebP

Your privacy

This tool runs entirely in your browser using JavaScript and WebAssembly. The file you select is read into your device's memory, converted there and offered back as a download — it is never uploaded to our servers. Closing or reloading the page clears it. If you are signed in, we store only the tool name, the number of files and their total size so you can see your own activity history; the file contents are never sent.

Read the full privacy policy

Tips for the best result

  • Start from the highest-quality original you have; converting an already-compressed file twice loses detail.
  • If you need transparency, keep the output in PNG or WebP — JPG cannot store an alpha channel.
  • When resizing for the web, set the width you actually display at rather than shrinking a huge image in CSS.
  • Compress last, after cropping and resizing, so you are not re-encoding the same pixels repeatedly.

Frequently asked questions

Does WebP keep transparency?

Yes, WebP supports an alpha channel, so transparent PNGs remain transparent.

Should I use WebP for logos?

For simple flat logos, SVG is better where possible. WebP is a good choice for raster logos and screenshots.

Is it free?

Yes. Every tool on Fast File Convert is free to use, with no account and no daily limit.

Are my images uploaded?

No. The conversion runs in your browser with JavaScript and WebAssembly, so the file never leaves your device and nothing is uploaded to our servers.

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