Free Online Images to WebP Converter

Convert JPG & PNG Images to WebP Online

Reduce image file size for websites and SEO. Drag & drop your files, choose quality (or lossless), preview results, and download WebP images instantly — all processed locally in your browser.

100% browser-based — your images never leave your device. No sign-up, no uploads.

Perfect for website performance & SEO

  • Smaller images, faster load
    Convert to WebP to reduce page weight and speed up loading.
  • Improve Core Web Vitals
    Smaller hero images can help improve LCP and UX.
  • Private by design
    Conversion happens in your browser — nothing is uploaded.

Converting your images…

Please wait a moment while we convert your files to WebP in your browser.

Convert images to WebP

Drop images here

or click the button below to browse JPG, PNG and other image files from your device.

Conversion runs locally in your browser for maximum privacy.

Tip: For photos use 70–85%. For logos/icons use Lossless.

WebP settings

Smaller file 80% (balanced) Better quality

Lossless preserves sharp edges and transparency but may produce larger files for photos.

What you get
  • Original vs WebP preview + size savings
  • Download each WebP or ZIP all
  • No uploads (privacy-first)

Why convert images to WebP?

WebP helps reduce image size for faster websites, better user experience, and improved SEO performance.

Fast, in-browser conversion

Convert images without uploading to a server. Works instantly on your device.

Privacy-first

Your files never leave your browser, making it safe for private and client images.

Batch ZIP download

Convert multiple images and download everything neatly packed as a ZIP.

Frequently asked questions

Short answers to the most common questions about converting images to WebP.

Yes. Conversion happens inside your browser using JavaScript. Your images are never uploaded to our servers.

Any image format your browser can open, including JPG, JPEG, PNG and more.

For photos, 70–85% is usually perfect. Enable Lossless for logos and sharp text.

Yes. Upload multiple images, convert them in bulk, then click Download All (ZIP).

What is a WebP Converter?

A WebP converter turns images like JPG and PNG into the WebP format. WebP is designed for the web and often produces smaller file sizes while keeping excellent image quality. By converting images to WebP, you can reduce page weight, speed up loading, and improve user experience — which is great for SEO and Core Web Vitals.

Why convert JPG and PNG to WebP?

JPG photos and PNG screenshots can be large. WebP typically compresses these images better, helping you reduce file size for websites, landing pages, eCommerce product images, and blog posts. Smaller images are also easier to email and upload.

How does GoPDFTools Images to WebP work?

GoPDFTools converts your images locally using your browser. There are no uploads and no server processing — your images remain private. Choose quality for lossy WebP, or enable lossless WebP for maximum clarity on logos and icons.

Features of this Images to WebP Converter

  • ✔ Convert JPG to WebP and PNG to WebP online for free
  • ✔ Bulk conversion + ZIP download
  • ✔ Quality slider + lossless mode
  • ✔ Preview comparison (original vs WebP) + savings %
  • ✔ 100% browser-based — no uploads, no watermarks

How to convert images to WebP online

  1. Click Choose Images or drag files into the orange box.
  2. Select Quality (or enable Lossless).
  3. Click Convert to WebP.
  4. Download WebP files individually or download a ZIP.

Related tools

You may also find these tools helpful: Image Compressor, Images to PDF, JPG to PDF, PNG to PDF, Compress PDF.

Extended FAQs

1. Are my images uploaded or stored?
No — conversion happens entirely in your browser. Nothing is sent to a server.

2. Lossy vs lossless WebP: what should I use?
Use lossy (70–85%) for photos and website images. Use lossless for logos, icons, and sharp text.

3. Can WebP keep PNG transparency?
Yes. WebP supports transparency, so transparent PNGs usually remain transparent after conversion.

4. Will WebP improve website speed and SEO?
Smaller image sizes can improve load time and Core Web Vitals, which supports SEO and user experience.

5. Why is my WebP file larger than the original?
This can happen if the original JPG is already highly compressed, if lossless is enabled on photos, or if quality is too high. Try lowering quality or disabling lossless for photos.

6. Can I convert images on mobile?
Yes. It works in modern mobile browsers. For large batches, desktop may be faster due to memory limits.

7. Is this tool free for commercial use?
Yes. You can use the output for personal and commercial projects.