Is transparency kept when I convert PNG to WebP?

Yes. WebP supports transparent areas just like PNG. Your image keeps its transparent background, and it is not filled in with any color.

Is WebP really smaller than PNG?

Usually, yes. PNG uses lossless compression, so it can be large for photos or images with many colors. WebP can be much smaller, especially at quality settings below 100, while still looking sharp.

Can I convert multiple PNG files at once?

Yes. Choose or drag as many PNG files as you need. Each one is converted on its own, and you can download them together as a ZIP file.

Are my images uploaded to a server?

No. This converter runs inside your browser. Your PNG files are read from your device, converted on your device, and saved only when you press Download.

Will my PNG lose quality when converted?

At quality 100 the picture looks the same as the PNG in almost every case. Lower quality settings make the file smaller but can lose some fine detail, which is normal for a lossy format like WebP.

Which browsers can open WebP images?

All current versions of Chrome, Edge, Firefox, Safari and Opera can open WebP images. Some older programs and older phones cannot, so keep your original PNG if you need wide compatibility.

PNG to WebP Converter

Convert PNG images to WebP and keep transparent areas.

Local Processing

Files stay on your device.

Choose Files

or drag and drop files here

Supported: PNG · Best results under 30 MB per file.

Files stay on your device

Private by design

Your files are processed directly in your browser. They are not uploaded to Stay Local Tools servers for processing. Because the work happens on your device, your files stay with you unless you download or share them yourself.

Note: the website itself still loads normal web files, and may use analytics or ads later. The promise here is about the files and text you put into these tools.

How to Use

Press Choose Files and select one or more PNG images. You can also drag and drop them onto the box.
Move the Quality slider if you want a smaller file or a better picture. 80 is a good starting point.
Press Convert to WebP. Your browser does the work, so nothing is sent to a server.
Check the new size and how much space you saved for each image.
Press Download for one image, or Download All to get every image at once.

Why convert PNG to WebP?

PNG is a lossless format: it never loses detail, but that also means it cannot shrink a photo very much. WebP can use lossy compression, similar to JPG, while still supporting transparency the way PNG does. For icons, logos, and images with transparent parts, this often means a much smaller file with no visible difference.

What happens to transparent areas?

WebP keeps the transparent parts of your PNG. Nothing is filled in with white, black or any other color. This makes WebP a safe replacement for PNG on logos, icons and graphics that need to sit on top of different backgrounds.

Choosing a quality

90–100: very close to the original PNG. Good for graphics with sharp edges or text.
75–89: a good balance of size and quality for most images.
Below 75: smaller files, but fine lines and small text can start to look soft.

Why converting on your own device helps

This page reads your PNG file, draws it, and writes the WebP copy inside your browser, without sending the image to a conversion service first. The file stays with you unless you choose to download it.

Questions and Answers

: Yes. WebP supports transparent areas just like PNG. Your image keeps its transparent background, and it is not filled in with any color.
: Usually, yes. PNG uses lossless compression, so it can be large for photos or images with many colors. WebP can be much smaller, especially at quality settings below 100, while still looking sharp.
: Yes. Choose or drag as many PNG files as you need. Each one is converted on its own, and you can download them together as a ZIP file.
: No. This converter runs inside your browser. Your PNG files are read from your device, converted on your device, and saved only when you press Download.
: At quality 100 the picture looks the same as the PNG in almost every case. Lower quality settings make the file smaller but can lose some fine detail, which is normal for a lossy format like WebP.
: All current versions of Chrome, Edge, Firefox, Safari and Opera can open WebP images. Some older programs and older phones cannot, so keep your original PNG if you need wide compatibility.

Other Languages

Español

Convertir PNG a WebP

Convierte imágenes PNG a WebP conservando las áreas transparentes. El archivo se procesa directamente en tu navegador y no se sube a los servidores de Stay Local Tools para el procesamiento.

Preguntas frecuentes

: Sí. WebP admite áreas transparentes igual que PNG, así que el fondo transparente se conserva sin rellenarse de color.
: Normalmente sí. PNG usa compresión sin pérdida y puede pesar mucho en fotos con muchos colores; WebP suele ser bastante más pequeño manteniendo buena nitidez.
: Sí. Puedes elegir o arrastrar tantos PNG como necesites y descargarlos todos juntos en un ZIP.

Português (Brasil)

Converter PNG para WebP

Converta imagens PNG para WebP mantendo as áreas transparentes. O arquivo é processado diretamente no navegador e não é enviado aos servidores do Stay Local Tools para processamento.

Perguntas frequentes

: Sim. O WebP suporta áreas transparentes assim como o PNG, então o fundo transparente é mantido sem ser preenchido com cor.
: Geralmente sim. O PNG usa compressão sem perdas e pode ficar grande em imagens com muitas cores; o WebP costuma ser bem menor mantendo boa nitidez.
: Sim. Você pode escolher ou arrastar quantos PNGs precisar e baixar tudo junto em um ZIP.

한국어

PNG WebP 변환

투명한 배경을 유지하면서 PNG 이미지를 WebP로 변환합니다. 파일은 브라우저에서 직접 처리되며 Stay Local Tools 서버에 업로드되지 않습니다.

자주 묻는 질문

: 네. WebP도 PNG처럼 투명한 영역을 지원하므로 투명 배경이 색으로 채워지지 않고 그대로 유지됩니다.
: 대체로 그렇습니다. PNG는 무손실 압축이라 색이 많은 이미지에서는 용량이 커질 수 있지만, WebP는 선명도를 유지하면서도 훨씬 작아지는 경우가 많습니다.
: 네. 필요한 만큼 PNG 파일을 선택하거나 끌어다 놓고, 결과물을 ZIP으로 한 번에 다운로드할 수 있습니다.