Fast, private, free image tools

Convert PNG to WebP instantly.

Convert PNG files into modern WebP images without sending them to a server. Keep transparency when supported by the browser.

Your image workspace

Optimize one image or a whole batch. No signup needed.

♢  Stays on your device
Drag and drop your image here

Or choose a JPEG, PNG, or WebP file up to 40 MB

You can also paste an image from your clipboard

Choose optimization mode

Pick what matters most

Uses gentle sharpening, color adjustments, and interpolation. Does not restore details that aren't in the original image. The output file may be larger.

1 KB = 1,024 bytes. Output size is verified after encoding.
JPEG has no transparency; transparent areas become white.

Ready.

Before & after

Original
Original image preview
Optimized
Processed image preview

Private by design

Images are processed locally, not sent to our server.

Works in your browser

No app installation, login, or paid API required.

Full control

Choose output format, dimensions, and size limit.

How to convert PNG to WebP

Upload your PNG, choose WebP, and click Optimize image. The browser can retain transparency in WebP, but Smart Optimize uses a lossy quality preset. For mathematically lossless pixels, use PNG in Lossless mode instead.

  1. Choose your image. Select a JPEG, PNG, or WebP file from your device.
  2. Choose your output. Set Smart, Lossless, or a file-size target, plus dimensions and format.
  3. Preview and download. Check the actual final size and save the new image.

Frequently asked questions

Does this upload my photo to a server?

No. Image decoding, resizing, and encoding happen in your browser. Your photo is not transmitted to our hosting server. Only standard website files load from hosting.

Will the image keep exactly the same quality?

Lossless mode keeps the original file unchanged when possible or uses PNG without lossy compression. Smart Optimize can reduce the file size more, but it does not guarantee pixel-identical output. Very small target sizes require greater compromises.

What formats are supported?

This first version supports JPEG, PNG, and WebP. HEIC, GIF animations, SVG, and AVIF export are not included. Browser support can vary.

Can you guarantee the target size?

The tool attempts the requested maximum by adjusting compression and, if necessary, dimensions. If the target cannot be achieved within practical minimum dimensions, it clearly warns you rather than claiming success.

Can Enhance quality turn a blurry photo into a sharp HD original?

It can improve apparent sharpness and enlarge smaller photos, but it cannot recover missing detail, undo severe blur, or guarantee true HD. This version uses browser-based filters, not a trained AI super-resolution model.

What does KB mean here?

One KB is 1,024 bytes. For example, 100KB means no more than 102,400 bytes.

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