Are my images uploaded to a server?

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

How many images can I convert at one time?

You can choose many files at once. The practical limit is your device memory, because every image must fit in your browser while it is converted. If you work with very large photos, convert them in smaller groups.

Will WebP make my image look worse?

At quality 80 most photos look the same as the JPG but the file is much smaller. Lower quality gives smaller files and more visible loss. If you need the best possible picture, use quality 90 to 100.

Why is my WebP file sometimes bigger than the JPG?

A JPG that was already saved with strong compression has little left to remove. Converting it at a high quality setting can produce a larger file. Lower the quality, or keep the original JPG.

Does the WebP file keep the EXIF data of my photo?

No. The image is redrawn from its pixels, so camera settings, date and GPS location are not copied into the WebP file. This is useful for privacy, but keep your original file if you need that information.

Which browsers and programs can open WebP?

All current versions of Chrome, Edge, Firefox, Safari and Opera show WebP images, and Windows and macOS open them as well. Some older programs and older phones do not. Keep a JPG copy if you must support very old software.

JPG to WebP Converter

Convert JPG images to WebP. Smaller files, same picture.

Local Processing

Files stay on your device.

Choose Files

or drag and drop files here

Supported: JPG, JPEG · 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 JPG 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.

What is WebP?

WebP is an image format made for the web. It stores the same picture as a JPG or PNG file, but usually in fewer bytes. Google released it in 2010, and today every current browser can show WebP images.

WebP can save an image in two ways. Lossy mode removes small details that are hard to see, like JPG does, and gives the smallest files. Lossless mode keeps every pixel, like PNG does. This tool uses lossy mode, which suits photos best.

Why convert JPG to WebP?

Smaller images make a page load faster. That matters most on phones and on slow networks, and page speed is part of how search engines rank a site. For a typical photo, WebP at quality 80 is often 25% to 35% smaller than the same photo as a JPG, and the difference is hard to see.

Smaller files also cost less to store and to send. If you keep many photos on a website, in a blog or in an app, the saving adds up quickly.

JPG vs WebP

Comparison of the JPG and WebP image formats
Point	JPG	WebP
File size	Larger	Usually 25–35% smaller
Transparency	No	Yes
Animation	No	Yes
Old software support	Works almost everywhere	Some old programs cannot open it
Best use	Sharing and printing	Websites and apps

Which quality should you choose?

The quality slider decides how much detail the converter may remove. A higher number keeps more detail and makes a bigger file.

90–100: almost no visible loss. Use this for photos you will edit again or print.
75–89: a good balance. Most website images look the same at 80 and the file is much smaller.
50–74: smaller files with some soft edges. Fine for thumbnails and background pictures.
Below 50: clearly visible loss. Use only when the file must be very small.

Converting a JPG to WebP is not a way to get quality back. The JPG was already compressed, so the WebP copies what is left. Start from the best original you have.

When WebP is a good choice

Use WebP for images on your own website or app, where you control which browsers need to open the file. Modern browsers all support it, and many website builders accept it.

Keep JPG when you send a photo to someone else, when a printer or an older program must open it, or when a service you use does not accept WebP. Converting is quick, so it is safe to keep the JPG original and make WebP copies for the web.

Why converting on your own device helps

Most online converters ask you to upload your photo first. The file then sits on a server you do not control, and photos often contain more than a picture: a date, a camera model, and sometimes the exact place where the photo was taken.

This page works differently. Your browser reads the file, draws it, and writes the WebP copy on your device. The photo is never sent to a conversion service to become a WebP file, so there is no upload to wait for, and the file stays with you.

Questions and Answers

: No. This converter runs inside your browser. Your JPG files are read from your device, converted on your device, and saved only when you press Download.
: You can choose many files at once. The practical limit is your device memory, because every image must fit in your browser while it is converted. If you work with very large photos, convert them in smaller groups.
: At quality 80 most photos look the same as the JPG but the file is much smaller. Lower quality gives smaller files and more visible loss. If you need the best possible picture, use quality 90 to 100.
: A JPG that was already saved with strong compression has little left to remove. Converting it at a high quality setting can produce a larger file. Lower the quality, or keep the original JPG.
: No. The image is redrawn from its pixels, so camera settings, date and GPS location are not copied into the WebP file. This is useful for privacy, but keep your original file if you need that information.
: All current versions of Chrome, Edge, Firefox, Safari and Opera show WebP images, and Windows and macOS open them as well. Some older programs and older phones do not. Keep a JPG copy if you must support very old software.

Other Languages

Español

Convertir JPG a WebP

Convierte imágenes JPG a WebP directamente en tu navegador, ajustando la calidad antes de descargar el resultado. El archivo se procesa directamente en tu navegador y no se sube a los servidores de Stay Local Tools para el procesamiento.

Preguntas frecuentes

: No. La conversión se realiza directamente en tu navegador; las imágenes se leen desde tu dispositivo y solo se guardan cuando pulsas Download.
: Puedes elegir varias imágenes a la vez. El límite práctico depende de la memoria de tu dispositivo, así que conviene convertir fotos muy grandes en grupos más pequeños.
: Con calidad 80 la mayoría de las fotos se ven casi igual que el JPG original, pero el archivo es mucho más pequeño. Para la mejor calidad posible, usa 90-100.

Português (Brasil)

Converter JPG para WebP

Converta imagens JPG para WebP diretamente no navegador, ajustando a qualidade antes de baixar o resultado. O arquivo é processado diretamente no navegador e não é enviado aos servidores do Stay Local Tools para processamento.

Perguntas frequentes

: Não. A conversão acontece diretamente no navegador; os arquivos JPG são lidos do seu dispositivo e só são salvos quando você clica em Download.
: Você pode escolher várias imagens ao mesmo tempo. O limite prático depende da memória do seu dispositivo, então converta fotos muito grandes em grupos menores.
: Com qualidade 80 a maioria das fotos fica quase igual ao JPG original, mas o arquivo é bem menor. Para a melhor qualidade possível, use entre 90 e 100.

한국어

JPG WebP 변환

JPG 이미지를 브라우저에서 바로 WebP로 변환하고 품질을 조절한 뒤 다운로드할 수 있습니다. 파일은 브라우저에서 직접 처리되며 Stay Local Tools 서버에 업로드되지 않습니다.

자주 묻는 질문

: 아니요. 변환은 브라우저 안에서 이루어지며, JPG 파일은 기기에서 읽고 변환한 뒤 다운로드를 누를 때만 저장됩니다.
: 여러 장을 한 번에 선택할 수 있습니다. 기기의 메모리에 따라 처리 가능한 양이 달라지므로, 사진이 매우 크다면 나누어 변환하는 것이 좋습니다.
: 품질 80 정도면 대부분의 사진이 원본 JPG와 거의 비슷해 보이면서 파일 크기는 훨씬 작아집니다. 최고 화질을 원한다면 90~100을 사용하세요.